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:
Jan. 10, 2023
Filed:
Jun. 28, 2020
Betterpower Battery Co., Ltd., Guangdong, CN;
Jiangxi Betterpower New Energy Co., Ltd., Jiangxi, CN;
Huijun Yuan, Guangdong, CN;
Guomin Zhang, Guangdong, CN;
Xiang Long, Guangdong, CN;
Haitao Dang, Guangdong, CN;
Aijun Jian, Guangdong, CN;
Xiaolin Wang, Guangdong, CN;
Yin Zhang, Guangdong, CN;
BetterPower Battery Co., Ltd., Shenzhen, CN;
Jiangxi BetterPower New Energy Co., Ltd., Yichun, CN;
Abstract
The invention relates to a button lithium ion battery, a preparation method thereof, and a method of producing a lithium ion cell composite flat sheet, wherein the button lithium ion battery comprises a battery housing, a cell accommodated in the battery housing and an electrolyte filled in the battery housing; the cell is formed by winding a composite flat sheet in which a first separator, a positive piece, a second separator and a negative piece are sequentially stacked and hot-laminated to form an integrated structure. The cell of the button lithium ion battery is formed by winding a composite flat sheet, so that winding efficiency can be improved, and misalignment can be avoided; moreover, chances of hand contact can be reduced, the influence of dust and water vapor can be avoided, and the quality of the lithium battery can be improved to the maximum extent.