Analysis of the development trend and the innovation ability of an all-solid-state lithium battery technology

doi:10.19799/j.cnki.2095-4239.2021.0350

Abstract

Abstract:

Scientific and technological innovation accelerates the transformation of the global energy pattern toward green, low-carbon, clean, efficient, intelligent, and diversified directions. High-energy density energy storage devices are the key to realizing renewable energy consumption and promoting the electrification of terminal applications. As a next-generation high-energy density mainstream technology scheme in the industry, the all-solid-state lithium battery has attracted wide attention. This study reviews the research status of the solid electrolyte in all-solid-state lithium batteries, analyzes the main challenges faced by this kind of battery, and proposes the future development trends of this technology. Combined with literature and patent metrology, the innovation ability of an all-solid-state lithium battery is systematically analyzed herein. The results show that the R&D innovation ability of the all-solid-state lithium batteries in China is strong. In fact, more than 1000 related papers have been published, placing China on top of the rankings in this field. The Chinese Academy of Sciences topped the list with 241 papers. The statistical results of the patent results since 2015 indicate that the technology has shown a blowout development. The technical themes are mainly focused on the development and manufacturing of secondary batteries, electrode development, research and development of conductive materials, development and manufacturing of primary batteries, and research and development of special equipment for manufacturing conductive materials, among others. By far, Japan is leading in terms of the number of published patents in this field. As a suggestion, China should strengthen the protection of the intellectual property rights of this technology in the future, promote the market application of patents, and realize the commercial mass production of all solid-state lithium batteries as soon as possible to play a greater role in promoting its clean and efficient energy pattern and realizing the "double carbon" goal.

Key words: energy storage, all-solid-state lithium batteries, bibliometrics, patent analysis, carbon neutral

CLC Number:

G 340

Yun TANG, Fang YUE, Kaimo GUO, Lanchun LI, Wangsong KE, Wei CHEN. Analysis of the development trend and the innovation ability of an all-solid-state lithium battery technology[J]. Energy Storage Science and Technology, 2022, 11(1): 359-369.

Figures/Tables 11

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Table 1

Fig. 5

Table 2

The IPC classifications and the patent application in the field of all-solid-state lithiumbattery technology"

IPC	专利申请数量/项	分类号含义	近三年申请量占总量的比例
H01M-0010/0562	1603	由无机材料构成的固体电解质	43.04%
H01M-0010/0525	1104	摇椅式电池，即其两个电极均插入或嵌入有锂的电池：锂离子电池	52.99%
H01M-0010/052	819	锂蓄电池	42.25%
H01M-0004/62	575	在活性物质中非活性材料成分的选择，如胶合剂、填料	47.48%
H01M-0010/058	476	构造或制造是	46.85%
H01M-0004/36	435	作为活性物质、活性体、活性溶液的材料的选择	48.05%
H01M-0010/0565	385	高分子材料，例如凝胶型或固体型	51.17%
H01M-0010/0585	357	只具有板条结构元件的，即板条式正极、板条式负极和板条式隔离件的蓄电池	44.54%
H01M-0004/525	307	插入或嵌入轻金属且含铁、钴或镍的混合氧化物或氢氧化物的	48.86%
H01M-0004/13	286	非水电解质蓄电池的电极	39.51%
H01M-0004/04	268	一般制造方法	35.82%
H01M-0004/505	257	插入或嵌入轻金属且含锰的混合氧化物或氢氧化物	51.36%
H01M-0004/58	252	除氧化物或氢氧化物以外的无机化合物的	36.90%
H01B-0001/06	248	由其他非金属物质组成的导电材料	36.29%
H01M-0004/131	234	基于混合氧化物或氢氧化物、或氧化物或氢氧化物的混合物的电极	32.05%
H01M-0004/38	205	用合金合成物作为活性材料	59.02%
H01M-0004/485	205	插入或嵌入轻金属的混合氧化物或氢氧化物的	39.02%
H01M-0004/139	179	制造方法	36.87%
H01M-0004/66	165	材料的选择	41.21%
H01M-0010/056	156	非水电解质材料制造过程或方法	53.85%
H01M-0004/1391	150	基于混合氧化物或氢氧化物、或氧化物或氢氧化物的混合物的电极的制备方法	34.67%
H01M-0004/134	143	基于金属、硅或合金的电极	60.14%
H01M-0004/02	123	由活性材料组成或包括活性材料的电极	37.40%
H01M-0006/18	107	固态电解质制造流程或方法	24.30%
H01B-0013/00	103	制造导体或电缆制造的专用设备或方法	30.10%
H01M-0004/136	102	基于除氧化物或氢氧化物以外的无机化合物的电极	34.31%

Table 2

Fig. 6

Fig. 7

Table 3

Table 4

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排序	机构	国家	发文量/篇	发文量占比/%
1	中国科学院	中国	241	7.72
2	大阪府立大学	日本	204	6.54
3	中国科学院大学	中国	116	3.72
4	清华大学	中国	85	2.72
5	日本东北大学	日本	72	2.31
6	马里兰大学	美国	70	2.24
7	日本产业技术综合研究所	日本	69	2.21
8	东京工业大学	日本	61	1.96
9	复旦大学	中国	59	1.89
10	京都大学	日本	55	1.76
11	新加坡国立大学	新加坡	54	1.73
12	汉阳大学	韩国	52	1.67
13	吉森大学	德国	48	1.54
14	首尔大学	韩国	48	1.54
15	韦仕敦大学	加拿大	48	1.54
16	东京都立大学	日本	46	1.47
17	尤利希研究中心	德国	45	1.44
18	得克萨斯大学奥斯汀分校	美国	45	1.44
19	丰田汽车	日本	44	1.41
20	上海交通大学	中国	39	1.25

专利权人(机构)	在其他国家/地区专利申请数量/项
专利权人(机构)	日本	中国	WIPO	美国	韩国
丰田汽车(日本)	173	71	20	154	25
中国科学院(中国)	1	102	2	2	2
出光兴产株式会社(日本)	41	10	7	7	3
宁波大学(中国)	0	75	0	0	0
日本矿业金属株式会社(日本)	36	4	2	5	5
NGK公司(日本)	13	2	9	20	10
古河机械金属株式会社(日本)	52	0	0	0	0
比亚迪(中国)	1	34	3	1	0
三星电子(韩国)	2	1	0	22	11
精工爱普生(日本)	5	8	0	16	0
中南大学(中国)	0	35	0	0	0
三井矿业(日本)	9	8	6	2	3
密西根大学(美国)	2	1	2	22	2
住友电气(日本)	4	3	1	12	4
哈尔滨工业大学(中国)	0	31	0	0	0
日本学习院(日本)	11	2	2	6	3
日本东保钛业(日本)	11	2	2	4	3
青岛昆山能源发展有限公司(中国)	0	23	0	2	0
昭和电工株式会社(日本)	6	1	8	1	2
东京工业大学(日本)	2	1	2	8	1
桂林市电力装备科学研究院(中国)	0	23	0	0	0
松下知识产权管理有限公司(日本)	6	4	4	6	0
日立(日本)	6	0	9	6	1
小原株式会社(日本)	21	0	0	0	0
清华大学(中国)	0	20	0	0	0

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