Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries
The ceramic composite separators coated with silica or alumina particles have been used in power batteries due to their better electrolyte wettability and better thermal stability compared with bare polymer separators. However, these oxide ceramics are Li+ ion insulators, which increase internal res...
| Main Authors: | , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2022-11-01
|
| Series: | Journal of Materiomics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352847822000685 |
| _version_ | 1797760508177154048 |
|---|---|
| author | Yuchuan Feng Minghui Wang Lina Gao Zhaoling He Kai Chen Zheng Li Hongcai He Yuanhua Lin |
| author_facet | Yuchuan Feng Minghui Wang Lina Gao Zhaoling He Kai Chen Zheng Li Hongcai He Yuanhua Lin |
| author_sort | Yuchuan Feng |
| collection | DOAJ |
| description | The ceramic composite separators coated with silica or alumina particles have been used in power batteries due to their better electrolyte wettability and better thermal stability compared with bare polymer separators. However, these oxide ceramics are Li+ ion insulators, which increase internal resistance and hinder the improvement of rate capability of batteries. Herein, we report a strategy to further improving the performance of lithium-ion batteries (LIBs) by using fast ionic conductor ceramic composite separator as an alternative to traditional ceramic coated separators. Lithium lanthanum titanate (LLTO), a fast ionic conductor with excellent room temperature bulk conductivity, are coated on the common polyethylene (PE) separators. Our results demonstrate that such a novel LLTO-coated separator possess excellent electrolyte wettability and thermal stability; and the assembled NCM523/graphite lithium-ion pouch cells with LLTO-coated separator show better rate capability and cyclic performance with 88.7% capacity retention after 1000 cycles at room temperature compared with the pouch cells with Al2O3-coated separators. The fast ionic conductor ceramic composite separators will be a potential competitor to the next-generation novel separators for high-performance Li-ion power batteries. |
| first_indexed | 2024-03-12T18:59:36Z |
| format | Article |
| id | doaj.art-9db91453d36c4c19bd0525d84281d5df |
| institution | Directory Open Access Journal |
| issn | 2352-8478 |
| language | English |
| last_indexed | 2024-03-12T18:59:36Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materiomics |
| spelling | doaj.art-9db91453d36c4c19bd0525d84281d5df2023-08-02T06:43:51ZengElsevierJournal of Materiomics2352-84782022-11-018611841190Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteriesYuchuan Feng0Minghui Wang1Lina Gao2Zhaoling He3Kai Chen4Zheng Li5Hongcai He6Yuanhua Lin7State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, ChinaQingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, ChinaQingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, ChinaQingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, China; Suzhou Qingtao New Energy S&T Co Ltd, Kunshan, 215300, Jiangsu, ChinaQingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, China; Yichun Qingtao Energy S&T Co. Ltd, Yichun, 336000, Jiangxi, ChinaQingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, China; Yichun Qingtao Energy S&T Co. Ltd, Yichun, 336000, Jiangxi, ChinaQingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, China; Suzhou Qingtao New Energy S&T Co Ltd, Kunshan, 215300, Jiangsu, China; Corresponding author. Qingtao Institute of New Energy Materials, Qingtao (Kunshan) Energy Development Co. Ltd, Kunshan, 215300, Jiangsu, China.State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China; Corresponding author.The ceramic composite separators coated with silica or alumina particles have been used in power batteries due to their better electrolyte wettability and better thermal stability compared with bare polymer separators. However, these oxide ceramics are Li+ ion insulators, which increase internal resistance and hinder the improvement of rate capability of batteries. Herein, we report a strategy to further improving the performance of lithium-ion batteries (LIBs) by using fast ionic conductor ceramic composite separator as an alternative to traditional ceramic coated separators. Lithium lanthanum titanate (LLTO), a fast ionic conductor with excellent room temperature bulk conductivity, are coated on the common polyethylene (PE) separators. Our results demonstrate that such a novel LLTO-coated separator possess excellent electrolyte wettability and thermal stability; and the assembled NCM523/graphite lithium-ion pouch cells with LLTO-coated separator show better rate capability and cyclic performance with 88.7% capacity retention after 1000 cycles at room temperature compared with the pouch cells with Al2O3-coated separators. The fast ionic conductor ceramic composite separators will be a potential competitor to the next-generation novel separators for high-performance Li-ion power batteries.http://www.sciencedirect.com/science/article/pii/S2352847822000685Li-ion batteriesCeramic composite separatorLLTOFast ionic conductorPouch cells |
| spellingShingle | Yuchuan Feng Minghui Wang Lina Gao Zhaoling He Kai Chen Zheng Li Hongcai He Yuanhua Lin Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries Journal of Materiomics Li-ion batteries Ceramic composite separator LLTO Fast ionic conductor Pouch cells |
| title | Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries |
| title_full | Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries |
| title_fullStr | Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries |
| title_full_unstemmed | Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries |
| title_short | Novel fast ionic conductor ceramic composite separator for high-performance safe Li-ion power batteries |
| title_sort | novel fast ionic conductor ceramic composite separator for high performance safe li ion power batteries |
| topic | Li-ion batteries Ceramic composite separator LLTO Fast ionic conductor Pouch cells |
| url | http://www.sciencedirect.com/science/article/pii/S2352847822000685 |
| work_keys_str_mv | AT yuchuanfeng novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT minghuiwang novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT linagao novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT zhaolinghe novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT kaichen novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT zhengli novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT hongcaihe novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries AT yuanhualin novelfastionicconductorceramiccompositeseparatorforhighperformancesafeliionpowerbatteries |