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Recent progress on evolution of safety performance of lithium-ion battery during aging process REN Dongsheng, FENG Xuning, HAN Xuebing, LU Languang, OUYANG Minggao Energy Storage Science and Technology    2018, 7 (6): 957-966.   DOI: 10.12028/j.issn.2095-4239.2018.0165 Abstract （2536）      PDF（pc） （10433KB）（11895）       Knowledge map    Save Safety is a major concern of the large-scale application of lithium-ion batteries. The safety performance of lithium-ion batteries not only depends on materials and cell design, but would also changes during aging process. The effects of aging on the battery safety performance require further investigation to ensure the full-life cycle safety of lithium-ion batteries. This paper has reviewed the recent progress on the evolution of battery safety performance under different aging conditions (including cycling and storage). The correlations between aging mechanisms and the changes of battery safety performance are further summarized. Lithium plating on anode surface is found to be the key factor of full-life cycle safety of lithium-ion batteries. Furthermore, the problems and future researches on the evolution of battery safety performance are discussed. Reference | Related Articles | Metrics | Comments（0）

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All-solid-state lithium-ion batteries:State-of-the-art development and perspective XU Xiaoxiong, QIU Zhijun, GUAN Yibiao, HUANG Zhen, JIN Yi Energy Storage Science and Technology    2013, 2 (4): 331-341.   DOI: 10.3969/j.issn.2095-4239.2013.04.001 Abstract （7391）      PDF（pc） （3840KB）（11401）       Knowledge map    Save Conventional lithium-ion secondary batteries have been widely used in portable electronic devices and are now developed for large-scale applications in hybrid-type electric vehicles and stationary-type distributed power sources. However, there are inherent safety issues associated with thermal management and combustible organic electrolytes in such battery systems. The demands for batteries with high energy and power densities make these issues increasingly important. All-solid-state lithium batteries based on solid-state polymer and inorganic electrolytes are leak-proof and have been shown to exhibit excellent safety performance, making them a suitable candidate for the large-scale applications. This paper presents a brief review of the state-of-the-art development of all-solid-state lithium batteries including working principles, design and construction, and electrochemical properties and performance. Major issues associated with solid-state battery technologies are then evaluated. Finally, remarks are made on the further development of all-solid-state lithium cells. Reference | Related Articles | Metrics | Comments（0）

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Overview of the failure analysis of lithium ion batteries WANG Qiyu, WANG Shuo, ZHANG Jienan, ZHENG Jieyun, YU Xiqian, LI Hong Energy Storage Science and Technology    2017, 6 (5): 1008-1025.   DOI: 10.12028/j.issn.2095-4239.2017.00022 Abstract （6540）      PDF（pc） （38291KB）（10947）       Knowledge map    Save The failure problems, associated with capacity fade, increased internal resistance, gas generation, electrolyte leakage, short circuit, battery deformation, thermal runaway, lithium deposition and etc., are the major issues that limit the performances, reliability and consistency of the commercialized lithium ion batteries. These problems are the result of a complex interplay of a host of chemical and physical mechanisms. A reliable analysis and fundamental understanding of aging characteristics is of critical significance for development of battery. The failure analysis of lithium ion batteries is started with the identification of the failure effects, then selected the advisable analysis methods to establish the high efficiency procedures to target the problems and thus to find out the primary causes as well as to provide reliable suggestions for further optimization of material fabrication and battery engineering. This article discusses the failure effects and their causes in lithium ion batteries. The procedure of the failure analysis and the inspection methods will also be presented. Some cases of failure analysis are reviewed in this manuscript, such as capacity fade, thermal runaway, and gas generation. Reference | Related Articles | Metrics | Comments（0）

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Reviews of 100 selected recent papers on lithium batteries (December 1, 2024 to January 31, 2025) Xinxin ZHANG, Guanjun CEN, Ronghan QIAO, Jing ZHU, Junfeng HAO, Qiangfu SUN, Mengyu TIAN, Zhou JIN, Yuanjie ZHAN, Yong YAN, Liubin BEN, Hailong YU, Yanyan LIU, Hong ZHOU, Xuejie HUANG Energy Storage Science and Technology    2025, 14 (3): 1310-1330.   DOI: 10.19799/j.cnki.2095-4239.2025.0155 Abstract （1182）   HTML （88）    PDF（pc） （1659KB）（7817）       Knowledge map    Save This bimonthly review provides a comprehensive overview of recent research on lithium batteries. A total of 5413 online papers published between December 1, 2024 and January 31, 2025 were examined using the Web of Science database. Using the BERTopic model, the abstract texts were analyzed, and a research topic map for lithium battery studies was generated. From these, 100 papers were selected for in-depth discussion. The selected studies covered various aspects of lithium batteries. Research on cathode materials, including Ni-rich layered oxides and LiNi0.5Mn1.5O4, focuses on improvements through doping, surface coating, and microstructural modifications. The cycling performances of Si-based anodes were enhanced through structural design. Considerable efforts have been devoted to interfacial and bulk structure design for lithium metal anodes. Studies on solid-state electrolytes examined structural design and performance in polymer, sulfide, and halide electrolytes as well as their composite forms. In contrast, liquid electrolytes were improved through optimized solvent and lithium salt designs for different battery applications and the incorporation of novel functional additives. For solid-state batteries, studies have explored cathode modification, surface coating, and synthesis methods as well as interface construction and three-dimensional structural design for lithium metal anodes. Interface modifications of current collectors for anode-free batteries have also been widely investigated. In lithium-sulfur batteries, the structural design of the cathode and liquid electrolyte contributes to extended cycle life. In addition, lithium-sulfur and lithium-oxygen batteries have garnered considerable attention. Other studies have investigated ion transport and degradation mechanisms in electrodes, lithium deposition morphology, and solid electrolyte interphase evolution. Research has also addressed thermal runaway analysis in full batteries, theoretical simulations of solvent effects on the cathode electrolyte interphase, and optimization of manufacturing processes. Table and Figures | Reference | Related Articles | Metrics | Comments（0）

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Experimental measurement and analysis methods of electrochemical impedance spectroscopy for lithium batteries LING Shigang, XU Jieru, LI Hong Energy Storage Science and Technology    2018, 7 (4): 732-749.   DOI: 10.12028/j.issn.2095-4239.2018.0092 Abstract （4817）      PDF（pc） （23460KB）（7512）       Knowledge map    Save Electrochemical impedance spectroscopy (EIS) is an important electrochemical measurement method. It is widely used in the field of electrochemistry, especially in lithium ion batteries, such as measuring the electrical conductivity, apparent chemical diffusion coefficient, growth and evolution of SEI, charge transfer and the mass transfer process. This paper mainly focused on the basic principle of electrochemical impedance spectroscopy (EIS), the testing methods, the matters needing attention and the equipment used in the electrochemical impedance measurement. Finally, the application of the electrochemical impedance spectroscopy in the lithium ion battery is introduced in a practical case. Reference | Related Articles | Metrics | Comments（0）

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Na-ion batteries: From fundamental research to engineering exploration RONG Xiaohui, LU Yaxiang, QI Xingguo, ZHOU Quan, KONG Weihe, TANG Kun, CHEN Liquan, HU Yongsheng Energy Storage Science and Technology    2020, 9 (2): 515-522.   DOI: 10.19799/j.cnki.2095-4239.2020.0054 Abstract （5828）   HTML （576）    PDF（pc） （3020KB）（7140）       Knowledge map    Save With the increasing demand for low-cost energy storage systems, more and more researchers and engineers have been involved in the fundamental research and engineering exploration of Na-ion batteries (NIBs), which grew rapidly in the past decade. This article firstly analyzes the situation of global lithium resource, especially the potential risks in China. Then we review the history of NIBs and introduce their global industrialization status in recent years. According to the latest research progress in this field, we summarize seven advantages of NIBs in terms of cost, performance, etc., which endows NIBs with huge development potential. Finally, we focus on introducing our work on the development and mass production of low-cost electrode materials such as copper-based layered oxide cathodes and disordered carbon anodes, as well as the application demonstration and engineering scale-up of NIBs. The successful demonstration of Ah-grade cells and battery packs for NIBs has initially proved their feasibility. By optimizing electrode materials, electrolytes, manufacturing and integration, and battery management, it is expected to further improve the comprehensive performance of NIBs, and realize the practical applications in low-speed electric vehicles, data center backup power supplies, communication base stations, household/industrial energy storage systems, and large-scale energy storage. Table and Figures | Reference | Related Articles | Metrics | Comments（0）

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Research progress of energy storage technology in China in 2021 Haisheng CHEN, Hong LI, Wentao MA, Yujie XU, Zhifeng WANG, Man CHEN, Dongxu HU, Xianfeng LI, Xisheng TANG, Yongsheng HU, Yanwei MA, Kai JIANG, Hao QIAN, Qingsong WANG, Liang WANG, Xinjing ZHANG, Xing WANG, Dehou XU, Xuezhi ZHOU, Wei LIU, Xianzhang WU, Donglin WANG, Qinggang HE, Zifeng MA, Yaxiang LU, Xuesong ZHANG, Quan LI, Liumin SUO, Huan GUO, Zhenhua YU, Wenxin MEI, Peng QIN Energy Storage Science and Technology    2022, 11 (3): 1052-1076.   DOI: 10.19799/j.cnki.2095-4239.2022.0105 Abstract （3959）   HTML （512）    PDF（pc） （1662KB）（6157）       Knowledge map    Save Research and development progress on energy storage technologies of China in 2021 is reviewed in this paper. By reviewing and analyzing three aspects of research and development including fundamental study, technical research, integration and demonstration, the progress on major energy storage technologies is summarized including hydro pumped energy storage, compressed air energy storage, flywheel, lead battery, lithium-ion battery, flow battery, sodium-ion battery, supercapacitor, new technologies, integration technology, fire-control and safety technology. The results indicate that extensive improvements of China's energy storage technologies have been achieved during 2021 in terms of all the three aspects. China is now the most active country in energy storage fundamental study and also one of the core countries of technical research and demonstration. Table and Figures | Reference | Related Articles | Metrics | Comments（0）

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Prototype all-solid-state battery electrodes preparation and assembly technology Yanming CUI, Zhihua ZHANG, Yuanqiao HUANG, Jiu LIN, Xiayin YAO, Xiaoxiong XU Energy Storage Science and Technology    2021, 10 (3): 836-847.   DOI: 10.19799/j.cnki.2095-4239.2021.0090 Abstract （2883）   HTML （359）    PDF（pc） （4492KB）（6107）       Knowledge map    Save All-solid-state lithium batteries, with good safety, long life and high energy, are an emerging option for next-generation technologies on the road to a green energy storage device. All-solid-state lithium batteries are prepared with all-solid electrode and all-solid electrolyte without liquid additives. Therefore, the electrode preparation and assembly of all solid-state lithium batteries are quite different from those of existing liquid lithium batteries. Here we summarize the typical assembly approaches of prototype all-solid-state batteries using oxide, sulfide, or polymer as solid electrolytes, providing reference for all-solid-state battery researchers.In this paper, the electrode preparation and assembly technology with the corresponding performance characteristics of several typical all-solid-state lithium batteries are reviewed in detail. The structure, cathode preparation methods, anode modification methods and battery assembly methods of oxide, sulfide and polymer solid electrolyte are summarized and analyzed respectively. Finally, some suggestions on the laboratory development and assembly methods of all solid state lithium batteries are given. Table and Figures | Reference | Related Articles | Metrics | Comments（0）

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Research progress of lithium ion battery solid-electrolyte interface(SEI) LIANG Dayu, BAO Tingting, GAO Tianhui, ZHANG Jian Energy Storage Science and Technology    2018, 7 (3): 418-423.   DOI: 10.12028/j.issn.2095-4239.2018.0059 Abstract （4862）      PDF（pc） （454KB）（5808）       Knowledge map    Save The lithium ion battery solid-electrolyte interface (SEI) is a thin-layer film formed on the surface of electrodes due to redox decomposition of electrolyte in the initial charging process. SEI film with high ionic conduction and electrical resistance is quite necessary for the long-term usage of lithium ion batteries and has a crucial impact on their capacity, rate, cycling and safety performances. However, because of its complex formation processes and great difficulties in making accurate characterization, only a superficial knowledge of SEI derive from some experimental observation or model hypothesis, thus quantitative analysis and controllable structural optimization are still needed to be further investigated. This paper reviews the formation process, the influence factors,some research ideas and current research status of SEI film. In addition, some potential research directions of SEI have been presented, including investigating the formation mechanism and role of SEI on the surface of cathode materials, optimizing the electrolyte formulas through solvents, lithium salts and additives to facilitate the formation of more stable SEI films, adopting advanced in-situ analysis methods and theoretical calculation methods to analyze chemical composition, morphology and microstructure of SEI, exploring effective ways to construct artificial SEI film and realize controllable structural modification. Reference | Related Articles | Metrics | Comments（0）

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Lithium sulfide: the "cornerstone" material in the era of all-solid-state batteries Tete HE, Yang LU, Yang LIU, Bin XU, Yongle CHEN, Fangyang LIU Energy Storage Science and Technology    2025, 14 (3): 898-912.   DOI: 10.19799/j.cnki.2095-4239.2025.0030 Abstract （1806）   HTML （108）    PDF（pc） （4331KB）（5398）       Knowledge map    Save Lithium sulfide (Li2S), as a critical precursor for synthesizing high-performance sulfide solid electrolytes, forming the foundation of the industrial development of sulfide-based all-solid-state batteries (ASSBs). Achieving a deep understanding of Li2S's key physicochemical properties, alongside advancing high-quality, cost-effective, and scalable fabrication techniques, is strategically significant for the sulfide ASSB industry. This study elucidates the central role of Li2S within the technological framework of ASSBs, emphasizing its core physicochemical parameters, key performance metrics, and their critical impact on industrial applications. Five promising synthesis methos are systematically reviewed from an industrial feasibility perspective, including direct sulfurization of metallic lithium, carbothermal reduction, hydrazine hydrate reduction, liquid-phase metathesis, and hydrogen sulfide neutralization. A multidimensional evaluation framework is constructed to compare these techniques across several dimensions, such as process characteristics, product performance, safety risks, and economic viability. This analysis identifies the key bottlenecks restricting the industrialization of Li2S and proposes targeted strategies for optimization. Potential future directions in large-scale production technologies are also outlined. This study aims to serve as a valuable reference for the industrial production of Li2S and its efficient integration into sulfide-based all-solid-state batteries, thereby facilitating technological advancements and cost reductions in sulfide solid electrolyte systems. Table and Figures | Reference | Related Articles | Metrics | Comments（0）

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The assembly, charge-discharge performance measurement and data analysis of lithium-ion button cell WANG Qiyu, CHU Geng, ZHANG Jienan, WANG Yi, ZHOU Ge, NIE Kaihui, ZHENG Jieyun, YU Xiqian, LI Hong Energy Storage Science and Technology    2018, 7 (2): 327-344.   DOI: 10.12028/j.issn.2095-4239.2018.0022 Abstract （3073）      PDF（pc） （17246KB）（5267）       Knowledge map    Save In the initial stage of basic research and evaluation of products, electrochemical performances of lithium ion batteries are measured commonly through button cell. Accurate measurements and standard analysis are essential for screening materials, exploring new materials and batteries. Based on previous literature and practical experience, this paper summarizes the assembly, charge-discharge measurements and data analysis of lithium-ion button cell in laboratory. Related Articles | Metrics | Comments（0）

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R&D vision and strategies on solid lithium batteries LI Hong1，2, XU Xiaoxiong3 Energy Storage Science and Technology    2016, 5 (5): 607-614.   DOI: 10.12028/j.issn.2095-4239.2016.0023 Abstract （1920）      PDF（pc） （12899KB）（4865）       Knowledge map    Save Increasing energy density of rechargeable batteries is highly desired by many emerging applications. It is necessary to identify possible solutions for achieving both high energy density and other required performances. Based on personal knowledge and understandings, this perspective paper summarizes the main scientific and technological problems of solid lithium battries as well as reported solutions. In view of practical application, the features of four types solid lithium batteries with different solid electrolyte are compared. And a roadmap is drawn accordingly. In addition, the technological targets of the energy density of lithium batteries from USA, Japan and China government are listed. The positions of the solid lithium batteries in the roadmap are marked. Reference | Related Articles | Metrics | Comments（0）

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Research progress on the nano-Si/C materials with high capacity for Lithium-iom battery LIU Bonan1, XU Quan2, CHU Geng1, LU Hao1, YIN Yaxia2, LUO Fei1, ZHENG Jieyun1, GUO Yuguo2, LI Hong1 Energy Storage Science and Technology    2016, 5 (4): 417-421.   DOI: 10.12028/j.issn.2095-4239.2016.04.003 Abstract （2846）      PDF（pc） （7872KB）（4797）       Knowledge map    Save Abstract: Nano-Si/C composite materials made up of nano-sized Si and carbon, is considered can solve the problem of large volume variation and unstable SEI formation of Si anode upon cycling, which have always impeded the practical application of Si-based anode. Because the carbon can effectively accommodate strain release and stablize the electrode/electrolyde interface. In this report, the recent progress of nano-Si/C materials is briefly introduced. After continuous research and development, the rebounding, efficiency, compaction density and workability of low capacity composite materials (380～450 mA·h·g-1) has reached the level of state of art commercial graphite material. The cycle and rate performance of high and ultra-high capacity materials (500～2000 mA·h·g-1) has been significantly improved owing to the sophisticated structure design. Related Articles | Metrics | Comments（0）

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Conductivity test and analysis methods for research of lithium batteries XU Jieru, LING Shigang, WANG Shaofei, PAN Du, NIE Kaihui, ZHANG Hua, QIU Jiliang, LU Jiaze, LI Hong Energy Storage Science and Technology    2018, 7 (5): 926-957.   DOI: 10.12028/j.issn.2095-4239.2018.0162 Abstract （3543）      PDF（pc） （37535KB）（4795）       Knowledge map    Save Lithium ionic conductivity, electronic conductivity of active electrode materials and lithium ionic conductivity of electrolyte materials are closely related to the dynamic behavior of lithium batteries. Therefore, conductivity test and analysis contribute the understanding of electrochemical properties of materials, including direct current method (DC), alternating current impedance (AC impedance), and direct current polarization method (DC polarization). Based on the different conductivity characteristics of electrolyte materials and active electrode materials, this paper introduced the methods, principles, equipments, test procedures and precautions of conductivity test. Besides, the analysis of data was illustrated with specific cases of lithium batteries. Reference | Related Articles | Metrics | Comments（0）

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Inflection point Ah-total integration method for real-time integration to correct lithium battery SOC LIU Dong, HUANG Bixiong, WANG Yiquan, YAN Xiao, WANG Ying Energy Storage Science and Technology    2019, 8 (5): 850-855.   DOI: 10.12028/j.issn.2095-4239.2019.0067 Abstract （1286）      PDF（pc） （588KB）（4760）       Knowledge map    Save The data of charge and discharge current and voltage of 18650 and 26650 lithium iron phosphate batteries show that the voltage remains unchanged during the cycle aging of the battery, although the SOC value at the maximum curvature (inflection point) of the capacity voltage curve. Therefore, in the process of estimating SOC, when the discharge voltage reaches the inflection point voltage, modifying the SOC to the corresponding inflection point SOC can optimize the estimation of the ampere-hour integration method because of the initial SOC to a certain extent. Based on this, a new inflection point correction chronograph integration algorithm is proposed. The effects of temperature, charge and discharge ratio, cycle aging and other factors on the accuracy of SOC estimation are considered. The concept of inflection point of charge and discharge curve is introduced to establish a mathematical model for real-time estimation of SOC. To reduce the cumulative error problem of the ampere-time integral method. Compared with the traditional An-time integral method, the error is 3%, which indicates that the method is feasible in actual conditions, and the estimation accuracy is high, which can provide an important reference for real-time estimation and detection of SOC. Reference | Related Articles | Metrics | Comments（0）

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Experimental measurement and analysis methods of cyclic voltammetry for lithium batteries NIE Kaihui, GENG Zhen, WANG Qiyu, YUE Jinming, YU Xiqian, LI Hong Energy Storage Science and Technology    2018, 7 (3): 539-553.   DOI: 10.12028/j.issn.2095-4239.2018.0067 Abstract （3659）      PDF（pc） （14115KB）（4582）       Knowledge map    Save Cyclic voltammetry (CV) is a very important electrochemical measurement method, which has been widely used in electrochemistry research especially for the study of lithium batteries. CV is commonly used to study the reversibility, mechanism and kinetic properties of electrode reactions in lithium batteries. Here, we overviewed the fundamental principles, experimental methods and the commonly used equipments for the CV measurement. Besides, its applications on the study of lithium batteries were introduced in detail, combing with practical experimental cases. Reference | Related Articles | Metrics | Comments（0）

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High-nickel ternary layered cathode materials for lithium-ion batteries： Research progress， challenges and improvement strategies Zhizhan LI, Jinlei QIN, Jianing LIANG, Zhengrong LI, Rui WANG, Deli WANG Energy Storage Science and Technology    2022, 11 (9): 2900-2920.   DOI: 10.19799/j.cnki.2095-4239.2021.0595 Abstract （4058）   HTML （385）    PDF（pc） （22577KB）（4497）       Knowledge map    Save With the gradual expansion of lithium-ion battery applications in the field of new energy vehicles, endurance mileage has become a key factor restricting the development of new energy vehicles. Improving the energy density of lithium-ion batteries is an effective way to solve range anxiety. Owing to their high specific capacity, low cost, and relatively good safety, high-nickel ternary layered materials are now one of the most promising cathode candidates for the next high-specific energy lithium-ion batteries. However, increased nickel content significantly decreases ternary layered materials' cycling and thermal stability. In this regard, we first summarize the development process of cathode materials for lithium ion batteries and analyze the necessity of developing ternary layered materials for high nickel, after which the current challenges based on the research status of high nickel ternary layered cathode materials are systematically discussed. The failure mechanism of the material is comprehensively analyzed by considering cation mixing, structural degradation, microcracks, surface side reactions, and thermal stability. In addition, considering the problems of high nickel ternary layered materials, some effective and advanced improvement strategies, including surface coating, element doping, single-crystal structure, and concentration gradient design, are reviewed. The research progress of various improvement strategies and modification mechanisms is highlighted. Finally, we compare the characteristics of various improvement strategies. Based on the advantages of a single improvement strategy and the coupling effect of different improvement strategies, we look forward to the development direction of the improvement strategy for high nickel ternary layered materials and propose feasibility programs for the collaborative application of multiple improvement strategies. Table and Figures | Reference | Related Articles | Metrics | Comments（0）

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Experimental measurement and analysis of Raman/infrared methods for lithium batteries SUN Shuwei, ZHAO Huiling, YU Caiyan, BAI Ying Energy Storage Science and Technology    2019, 8 (5): 975-996.   DOI: 10.12028/j.issn.2095-4239.2019.0082 Abstract （2399）      PDF（pc） （2930KB）（4457）       Knowledge map    Save Raman spectroscopy and Fourier transform infrared spectroscopy (FTIR) are important physical characterization methods. They are widely used in the field of electrochemistry, especially in the field of lithium batteries. They are commonly used to analyze molecular valence bonds, functional group vibration and rotational energy level transition states, phase structure changes, stability, surface phenomena and reaction mechanism, the correlation spectroscopy data can calculate the bond energy, bond length, bond angle, etc. of the chemical bond. This paper introduces the basic principles, test methods, test precautions, common test equipment and test procedures of Raman and infrared spectroscopy, and analyzes Raman and infrared spectroscopy in lithium battery electrode materials, electrolytes and binders. The application of isocomponent analysis and its influence on the electrochemical stability of the product formed in the charge and discharge cycle. Reference | Related Articles | Metrics | Comments（0）

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Calculation on energy densities of lithium ion batteries and metallic lithium ion batteries WU Jiaoyang, LIU pin, HU Yongsheng, LI Hong Energy Storage Science and Technology    2016, 5 (4): 443-453.   DOI: 10.12028/j.issn.2095-4239.2016.04.0007 Abstract （3441）      PDF（pc） （14281KB）（4337）       Knowledge map    Save Lithium batteries have the highest theoretical energy densities among all electrochemical energy storage devices. Prediction of the energy density of the different lithium ion batteries (LIB) and metallic lithium ion batteries (MLIB) is valuable for understanding the limitation of the batteries and determine the directions of R&D. In this research paper, the energy densities of LIB and MLIB have been calculated. Ourcalculation includes the active electrode materials and inactive materials inside the cell.For practical applications, energy density is essential but not the only factor to be considered, other requirements on the performances have to be satisfied ina balanced way. Related Articles | Metrics | Comments（0）

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Challenges and strategies for interface failures in silicon-based solid-state batteries Qin WANG, Yangang ZHANG, Junfei LIANG, Hua WANG Energy Storage Science and Technology    2025, 14 (2): 570-582.   DOI: 10.19799/j.cnki.2095-4239.2024.0774 Abstract （620）   HTML （82）    PDF（pc） （16765KB）（4337）       Knowledge map    Save Silicon-based materials are among the most promising anode materials for solid-state batteries owing to their high specific capacity. However, interface failures between silicon-based electrode materials and solid-state electrolytes disrupt ion and electron transport pathways, leading to increased internal impedance, uneven current-density distribution, and eventual degradation of battery capacity and cycle life. This issue presents a major challenge in designing high-energy-density and long-cycle silicon-based solid-state batteries. First, we evaluate the reasons for interface failures between silicon-based materials and solid-state electrolytes, focusing on crystal structures, critical dimensions, and electrochemical sintering. We also discuss the impact of lithium concentration on the electronic conductivity, ionic diffusion coefficient, and Young's modulus of pure silicon materials. Furthermore, we summarize various strategies to address the interface failures, including the application of binders, buffer layers, electrode-material structure design, and particle-size matching between electrode materials and electrolytes. Additionally, we emphasize the potential influence of applying equal and constant stacking pressure on battery performance during the cycling process. This study aims to elucidate the scientific challenges associated with silicon-based material and electrolyte-interface failures in solid-state batteries, resulting in capacity decay and decreased cycle life. Further, this work proposes strategies to address these challenges considering silicon-based material design, electrode material preparation, and electrode-electrolyte matching, thereby guiding further advancements in this field. Table and Figures | Reference | Related Articles | Metrics | Comments（0）