The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 27, 2020
Filed:
Oct. 04, 2018
Contemporary Amperex Technology Co., Limited, Ningde, CN;
Ying Wang, Ningde, CN;
Yongsheng Guo, Ningde, CN;
Chengdu Liang, Ningde, CN;
Xiqing Wang, Ningde, CN;
Shuojian Su, Ningde, CN;
Qian Liu, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, Fujian Province, CN;
Abstract
The present disclosure provides a positive electrode plate, a preparation method thereof and a sodium-ion battery. The positive electrode plate comprises a positive electrode current collector and a positive electrode active material film. The positive electrode active material film provided on the positive electrode current collector and comprises a positive electrode active material. The positive electrode active material comprises a prussian blue analogue material, a molecular formula of the prussian blue analogue material is AM[M'(CN)], a water content of the positive electrode active material film is 100 μg/g˜5000 μg/g. The water content of the positive electrode active material film is controlled within a certain range, which can not only ensure the sodium-ion battery do not seriously swell during charge-discharge process, but also can ensure sodium-ion battery have excellent charge-discharge performance and cycle performance.