| Autor: |
Maige Chen, Yuanjian Xu, Mingwen Dong, Keding Chen, Zidong Zhang, Li Yang, Jingchao Chai, Yun Zheng, Yuyu Li, Zhihong Liu, Ming Xie, Wei Zhang |
| Jazyk: |
angličtina |
| Rok vydání: |
2024 |
| Předmět: |
|
| Zdroj: |
Next Materials, Vol 5, Iss , Pp 100266- (2024) |
| Druh dokumentu: |
article |
| ISSN: |
2949-8228 |
| DOI: |
10.1016/j.nxmate.2024.100266 |
| Popis: |
Cellulose has advantages of easy availability, low price, renewability and biodegradability, making it a very promising substitute for fossil-based materials. A safe composite cellulose membrane for quasi-solid-state lithium ion batteries has been developed by coating cellulose separators with poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and lithium aluminum titanium phosphate (LATP). This membrane exhibits excellent electrochemical performance, with an ionic conductivity as high as 2.1 mS cm−1, and a lithium-ion transference number of 0.57. The membrane shows good electrolyte wetting properties, with porosity and liquid electrolyte uptake of 47.2 % and 401.7 %, respectively. It has good thermal stability and can maintain its dimensional stability even at 200 ℃. The capacity retention of the quasi-solid-state LiFePO4/Li battery assembled with this membrane after 200 cycles at 0.2 C is about 86.7 %. The quasi-solid-state battery has good thermal stability and is not prone to thermal runaway. |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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