锂电池研究中的电导率测试分析方法

doi:10.12028/j.issn.2095-4239.2018.0162

摘要/Abstract

摘要： 锂电池活性电极材料的锂离子电导率、电子电导率以及电解质的锂离子电导率与锂电池的动力学行为密切相关。电导率的测试分析有助于理解材料的电化学性能，常用的方法包括直流法、交流阻抗法和直流极化法等。本文根据电解质材料和活性电极材料的不同导电特性，分类介绍了电导率测试选取的方法、原理、设备、测试流程和注意事项，并结合具体案例阐述数据的分析。

关键词: 电导率, 直流法, 交流阻抗法, 直流极化法, 锂电池

Abstract: 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.

Key words: conductivity, direct current method, alternating current impedance, direct current polarization method, lithium batteries

中图分类号:

TM911

许洁茹, 凌仕刚, 王少飞, 潘都, 聂凯会, 张华, 邱纪亮, 卢嘉泽, 李泓. 锂电池研究中的电导率测试分析方法[J]. 储能科学与技术, 2018, 7(5): 926-957.

XU Jieru, LING Shigang, WANG Shaofei, PAN Du, NIE Kaihui, ZHANG Hua, QIU Jiliang, LU Jiaze, LI Hong. Conductivity test and analysis methods for research of lithium batteries[J]. Energy Storage Science and Technology, 2018, 7(5): 926-957.

参考文献

[1] MAIER J. Physical chemistry of ionic materials:Ions and electrons in solids[M]. New Jersey:John Wiley & Sons, 2004.
[2] AGRAWAL R, GUPTA R. Superionic solid:Composite electrolyte phase-An overview[J]. Journal of Materials Science, 1999, 34(6):1131-1162.
[3] 郑浩, 高健, 王少飞, 等. 锂电池基础科学问题(VI)——离子在固体中的输运[J]. 储能科学与技术, 2013, 2(6):620-635. ZHENG Hao, GAO Jian, WANG Shaofei, et al. Fundamental scientific aspects of lithium batteries (VI)-Ionic transport in solids[J]. Energy Storage Science and Technology, 2013, 2(6):620-635.
[4] 王少飞. 锂电池固体电解质材料的研究[D]. 北京:中国科学院物理研究所, 2014. WANG S F. Investigation on solid state electrolyte materials for lithium battery[D]. Beijing:Institute of Physics, Chinese Academy of Sciences, 2014.
[5] 高健. 若干锂离子固体电解质中的离子输运问题研究[D]. 北京:中国科学院物理研究所, 2015. GAO J. Investigation on ion transport in several lithium ion solid electrolytes[D]. Beijing:Institute of Physics, Chinese Academy of Sciences, 2015.
[6] 杨勇. 固态电化学[M]. 北京:化学工业出版社, 2016. YANG Y. Solid state electrochemistry[M]. Beijing:Chemistry Industry Press, 2016.
[7] WANG S, YAN M, LI Y, et al. Separating electronic and ionic conductivity in mix-conducting layered lithium transition-metal oxides[J]. Journal of Power Sources, 2018, 393:75-82.
[8] 张恒. 含双(氟磺酰)亚胺阴离子的纯固态聚合物电解质的制备、表征及性质[D]. 武汉:华中科技大学, 2015. ZHANG H. Solid polymer electrolytes based on bis(fluorosulfonyl) imide anion:Synthesis, characterization, and properties[D]. Wuhan:Huazhong University of Science & Technology, 2015.
[9] 应风晔. Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ混合导体导电性能研究[D]. 上海:上海大学, 2007. YING F Y. Research on conductivity of mixed Conductors-Ba_0.5Sr_0.5Co_0.8Fe_0.2O_3-δ[D]. Shanghai:Shanghai University, 2007.
[10] BUSCHMANN H, DOLLE J, BERENDTS S, et al. Structure and dynamics of the fast lithium ion conductor "Li₇La₃Zr₂O₁₂"[J]. Phys. Chem. Chem. Phys., 2011, 13(43):19378-19392.
[11] 凌仕刚, 许洁茹, 李泓. 锂电池研究中的EIS实验测量和分析方法[J]. 储能科学与技术, 2018, 7(4):732-750. LING S G, XU J R, LI H. Experimental measurement and analysis methods of electrochemical impedance spectroscopy for lithium batteries[J]. Energy Storage Science and Technology, 2018, 7(4):732-750.
[12] WESTPHAL B G, MAINUSCH N, MEYER C, et al. Influence of high intensive dry mixing and calendering on relative electrode resistivity determined via an advanced two point approach[J]. Journal of Energy Storage, 2017, 11:76-85.
[13] BARSOUKOV E, MACDONALD J R. Impedance spectroscopy theory, experiment, and applications[M]. 2nd Ed. USA:John Wiley & Sons, 2005.
[14] 曹楚南, 张鉴清. 交流阻抗法导论[M]. 北京:科学出版社, 2002. CAO C N, ZHANG J Q. An introduction to electrochemistry impedance spectroscopy[M]. Beijing:Science Press, 2002.
[15] HEBB M H. Electrical conductivity of silver sulfide[J]. The Journal of Chemical Physics, 1952, 20:185-190.
[16] WAGNER C. Galvanische zellen mit festen elektrolyten gemischter stromleitung[J]. Zeitschrift fuer Elektrochemie und Angewandte Physikalische Chemie, 1956, 60:4-7.
[17] FRENNING G, STR MME M. Theoretical derivation of the isothermal transient ionic current in an ion conductor:Migration, diffusion, and space-charge effects[J]. Journal of Applied Physics, 2001, 90(11):5570-5575.
[18] WATANABE M, RIKUKAWA M, SANUI K, et al. Evaluation of ionic mobility and transference number in a polymeric solid electrolyte by isothermal transient ionic current method[J]. Journal of Applied Physics, 1985, 58(2):736-740.
[19] 郑浩. 全固态锂空气电池和新型薄膜固态电解质研究[D]. 北京:中国科学院物理研究所, 2015. ZHENG H. Studies on the solid state Lithium air battery and a new thin film solid state electrolyte[D]. Beijing:Institute of Physics, Chinese Academy of Sciences, 2015.
[20] HAILE S M, WEST D L, CAMPBELL J. The role of microstructure and processing on the proton conducting properties of Gadolinium-doped barium cerate[J]. Journal of Materials Research, 1998, 13(6):1576-1595.
[21] AGRAWAL R C, KATHAL K, GUPTA R K. Estimation of energies of Ag⁺ ion formation and migration using transient ionic current (TIC) technique[J]. Solid State Ionics, 1994, 74:137-140.
[22] AMIN R, MAIER J, BALAYA P, et al. Ionic and electronic transport in single crystalline LiFePO₄ grown by optical floating zone technique[J]. Solid State Ionics, 2008, 179(27/32):1683-1687.
[23] ZUGMANN S, FLEISCHMANN M, AMERELLER M, et al. Measurement of transference numbers for lithium ion electrolytes via four different methods, a comparative study[J]. Electrochimica Acta, 2011, 56(11):3926-3933.
[24] ABRAHAM K M, JIANG Z, CARROLL B. Highly conductive PEO-like polymer electrolytes[J]. Chemistry of Materials, 1997, 9:1978-1988.
[25] NIEDZICKI L, KASPRZYK M, KUZIAK K. Liquid electrolytes based on new lithium conductive imidazole salts[J]. Journal of Power Sources, 2011, 196(3):1386-1391.
[26] SAKUDA A, HAYASHI A, TATSUMISAGO M. Sulfide solid electrolyte with favorable mechanical property for all-solid-state lithium battery[J]. Scientific Reports, 2013(3):2261-2265.
[27] 程琥. 锂二次电池聚合物电解质的制备、表征及其相关界面性质研究[D]. 厦门:厦门大学, 2007. CHENG H. Synthesis, characterization and their interfacial properties of polymer electrolytes for secondary lithium batteries[D]. Xiamen:Xiamen University, 2007.
[28] KIM S, HIRAYAMA M, TAMINATO S. Epitaxial growth and lithium ion conductivity of lithium-oxide garnet for an all solid-state battery electrolyte[J]. Dalton Transactions, 2013, 42(36):13112-13117.
[29] LOBE S, DELLEN C, FINSTERBUSCH M. Radio frequency magnetron sputtering of Li₇La₃Z₂O₁₂ thin films for solid-state batteries[J]. Journal of Power Sources, 2016, 307:684-689.
[30] SU Y, FALGENHAUER J, POLITY A. LiPON thin films with high nitrogen content for application in lithium batteries and electrochromic devices prepared by RF magnetron sputtering[J]. Solid State Ionics, 2015, 282:63-69.
[31] HUGGINS R A. Simple method to determine electronic and ionic conductivity of the components in mixed conductors-A review[J]. Ionics, 2002(8):300-313.
[32] UHLMANN C, BRAUN P, ILLIG J, et al. Interface and grain boundary resistance of a lithium lanthanum titanate (Li_3-xLa_2/3-xTiO₃, LLTO) solid electrolyte[J]. Journal of Power Sources, 2016, 307:578-586.
[33] 张杰男. 电压钴酸锂的失效分析与改性研究[D]. 北京:中国科学院物理研究所, 2018. ZHANG J N. Failure analysis and modification research on high voltage LiCoO₂[D]. Beijing:Institute of Physics, Chinese Academy of Sciences, 2018.
[34] IRVINE J T, SINCLAIR D C, WEST A R. Electroceramics:characterization by impedance spectroscopy[J]. Advanced Materials, 1990, 3(2):132-138.
[35] KAMAYA N, HOMMA K, YAMAKAWA Y, et al. A lithium superionic conductor[J]. Nature Materials, 2011, 10(9):682-686.
[36] LIN D, LIU W, LIU Y, et al. High ionic conductivity of composite solid polymer electrolyte via in situ synthesis of monodispersed SiO₂ nanospheres in Poly(ethylene oxide)[J]. Nano Letters, 2015, 16(1):459-465.
[37] AMIN R, BALAYA P, MAIER J. Anisotropy of electronic and ionic transport in LiFePO₄ single crystals[J]. Electrochemical and Solid-State Letters, 2007, 10(1):A13-A16.
[38] AMIN R, CHIANG Y M. Characterization of electronic and ionic transport in Li_1-xNi_0.33Mn_0.33Co_0.33O₂ (NMC₃₃₃) and Li_1-xNi_0.50Mn_0.20Co_0.30O₂ (NMC₅₂₃) as a function of Li content[J]. Journal of the Electrochemical Society, 2016,163(8):A1512-A1517.
[39] PATEL R L, PARK J, LIANG X H. Ionic and electronic conductivities of atomic layer deposition thin film coated lithium ion battery cathode particles[J]. RSC Advances, 2016, 6:98768-98776.