期刊
SOLID STATE IONICS
卷 345, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.ssi.2019.115188
关键词
Lithium-ion batteries; Polyethylene separator; Aluminide ceramic coating; Boehmite; Thermal stability
资金
- Youth Long-term Project of Jiangxi Province to Introduce Leading Innovative Talents, China [jxsq2018106023]
- National Natural Science Foundation of China [51502090]
- Natural Science Foundation of Jiangxi Province [20171BAB216007, 20181BAB206006]
- Innovation and Entrepreneurship Training Program for College Students of Nanchang University, China [20190402]
A new type of aqueous aluminide ceramic coating polyethylene (ACP) separators is prepared by a simple spreader coating process using aluminum oxide (Al2O3) and boehmite (AlOOH) as the ceramic coating particles. During the preparation of the separator, water is used as the solvent and BYK (Beck Chemical Co., Ltd.) additives are used as the aqueous assistant. The as-prepared ACP separators present more outstanding synthetic properties than commercial polyethylene (PE) separators. In addition, compared with Al2O3-coated PE (PE-Al2O3) separators, AlOOH-coated PE (PE-AlOOH) separators have superior synthetic properties, including a better interface stability and a higher liquid electrolyte uptake due to the presence of hydroxyl groups (-OH). As a consequence, the LiNi0.3Co0.3Mn0.3P vertical bar Li metal half-cells with PE-AlOOH separators have a good cycling stability and a high rate performance. The advantages of the PE-AlOOH separators make them promising candidates for applications in high power lithium-ion batteries.
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