基于专利数据挖掘的固态锂电池关键材料分析

doi:10.19799/j.cnki.2095-4239.2024.0034

储能科学与技术 ›› 2024, Vol. 13 ›› Issue (7): 2386-2398.doi: 10.19799/j.cnki.2095-4239.2024.0034

基于专利数据挖掘的固态锂电池关键材料分析

周洪¹^,²^,³(), 辛竹琳¹^,², 付豪¹^,², 张强⁴, 魏凤¹^,²^,³

^1.中国科学院武汉文献情报中心，湖北武汉 430071
^2.中国科学院大学经济与管理学院信息资源管理系，北京 100191
^3.科技大数据湖北省重点实验室，湖北武汉 430071
^4.华中师范大学信息管理学院，湖北武汉 430079

收稿日期:2024-01-10 修回日期:2024-02-01 出版日期:2024-07-28 发布日期:2024-07-23
通讯作者: 周洪 E-mail:zhouh@mail.whlib.ac.cn
作者简介:周洪（1987—）男，副研究员，研究方向为专利分析、计算情报研究，E-mail：zhouh@mail.whlib.ac.cn。
基金资助:
中国科学院武汉文献情报中心青年领军人才项目(E0KZ451)

Analysis of the key materials employed in solid-state lithium batteries based on patent data mining

Hong ZHOU¹^,²^,³(), Zhulin XIN¹^,², Hao FU¹^,², Qiang ZHANG⁴, Feng WEI¹^,²^,³

^1.National Science Library (Wuhan), Chinese Academy of Sciences, Wuhan 430071, Hubei, China
^2.Department of Information Resources Management, School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100191, China
^3.Hubei Key Laboratory of Big Data in Science and Technology, Wuhan 430071, Hubei, China
^4.School of Information Management, Central China Normal University, Wuhan 430079, Hubei, China

Received:2024-01-10 Revised:2024-02-01 Online:2024-07-28 Published:2024-07-23
Contact: Hong ZHOU E-mail:zhouh@mail.whlib.ac.cn

摘要/Abstract

摘要：

固态锂电池作为下一代高性能储能技术，其关键材料的研发对于提高固态锂电池的能量密度、稳定性和安全性至关重要。本文以全球固态锂电池专利为研究对象，基于文本挖掘方法提取和整理固态锂电池专利文献中的材料信息，通过主要材料分布和共现网络重点分析了固态锂电池的材料分布特点和潜在研发材料，通过机构-材料的分布和共现网络重点分析了主要研发机构的材料布局和研发重点，梳理了2021年以来固态锂电池专利中出现的新材料及其研发机构，揭示了固态锂电池材料领域的现有研究热点和未来发展趋势。研究结果显示，锂、铝、镧、磷、硫化物等材料在固态锂电池专利中占据重要地位；大部分机构围绕核心材料进行创新和合作，在材料开发和应用方面具有相似的策略；少数重要机构积极开发固态锂电池的新材料并广泛布局相关专利，对固态锂电池的材料开发、技术创新和商业化有推动作用。本文为固态锂电池材料的分析和挖掘提供了新的方法，为固态锂电池的材料研发和技术创新提供参考。

关键词: 固态锂电池, 固态电解质, 专利分析, 关键材料, 材料挖掘

Abstract:

The development of key materials for solid-state lithium batteries, which represent next-generation high-performance energy storage solutions, is essential for enhancing their energy density, stability, and safety. Considering global patents on solid-state lithium batteries as research objects, this study employs a text mining method to extract material information from these patents. Furthermore, by constructing the primary distribution and co-occurrence network of materials, it analyzes the characteristics of material distribution and identifies potential future materials of solid-state lithium batteries. In addition to the above network, a distribution and co-occurrence network of institutions and materials is also established to examine the material layouts and research considerations of major institutions. Specifically, new materials and research institutions appearing in the patents on solid-state lithium batteries since 2021 are reviewed, and current research hotspots and future development trends are identified. Notably, the review identifies lithium, aluminum, lanthanum, phosphorus, and sulfide as critical materials appearing in the solid-state lithium battery patents. Furthermore, the results reveal that most organizations focus on these core materials, adopting similar strategies for material development and application. Interestingly, a few important institutions also report the development of new materials for solid-state lithium batteries and acquire related patents, thus driving material development, technological innovation, and the commercialization of solid-state lithium batteries. Thus, this paper proposes a new method for analyzing and identifying materials used in solid-state lithium batteries, offering valuable insights for material development and technological innovations within this field.

Key words: solid state lithium battery, solid state electrolyte, patent analysis, key materials, material mining

中图分类号:

TM 912

周洪, 辛竹琳, 付豪, 张强, 魏凤. 基于专利数据挖掘的固态锂电池关键材料分析[J]. 储能科学与技术, 2024, 13(7): 2386-2398.

Hong ZHOU, Zhulin XIN, Hao FU, Qiang ZHANG, Feng WEI. Analysis of the key materials employed in solid-state lithium batteries based on patent data mining[J]. Energy Storage Science and Technology, 2024, 13(7): 2386-2398.

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序号	材料中文名	材料英文名	频次	时间范围	2020年后专利占比
1	锂	lithium	2648	1998—2023	35.65%
2	硫化物	sulfide	767	2003—2023	34.29%
3	硫	sulfur	512	2003—2023	29.30%
4	磷	phosphorus	382	2003—2023	35.34%
5	铝	aluminum	318	2007—2023	44.97%
6	氧	oxygen	304	2003—2023	42.11%
7	碳	carbon	300	2001—2023	43.00%
8	硅	silicon	286	1999—2023	34.27%
9	氧化物	oxide	276	1999—2023	45.65%
10	锆	zirconium	241	2007—2023	40.66%
11	镧	lanthanum	208	2007—2023	39.90%
12	硫化锂	lithium sulfide	192	2001—2023	32.67%
13	钛	titanium	166	2008—2023	47.59%
14	镍	nickel	163	2008—2023	42.33%
15	氟	fluorine	141	2008—2023	61.70%
16	氯	chlorine	140	2010—2023	52.14%
17	溴	bromine	130	2010—2023	52.31%
18	镁	magnesium	130	2007—2023	42.31%
19	硼	boron	129	2003—2023	24.81%
20	碘	iodine	125	2010—2023	51.20%

排名	点度中心度		中介中心度		接近中心度		特征向量中心度
排名	材料	得分	材料	得分	材料	得分	材料	得分
1	锂	129	锂	6637.744	锂	0.006711	锂	0.250
2	铝	52	硫化物	282.189	铝	0.004405	铝	0.216
3	磷	47	铝	168.507	硫化物	0.004310	锆	0.203
4	硫化物	46	硫化锂	161.041	磷	0.004310	镁	0.201
5	硅	45	铌	157.523	硅	0.004274	硅	0.195
6	锆	45	磷	155.249	锆	0.004237	钛	0.195
7	镁	42	硅	136.948	硫	0.004184	磷	0.194
8	硫	40	硫	112.712	镁	0.004184	铌	0.192
9	钛	40	硫化磷	76.954	铌	0.004149	锡	0.185
10	铌	40	锆	74.872	钛	0.004149	锗	0.178

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基于专利数据挖掘的固态锂电池关键材料分析

Analysis of the key materials employed in solid-state lithium batteries based on patent data mining

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