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:
Aug. 11, 2020
Filed:
Dec. 06, 2018
Contemporary Amperex Technology Co., Limited, Ningde, CN;
CONTEMPORARY AMPEREX TECHNOLOGY CO., LIMITED, Ningde, Fujian Province, CN;
Abstract
The present disclosure discloses a cell and a battery using the same. The cell comprises a positive electrode plate and a negative electrode plate which each are provided with an uncoated current collector, the uncoated current collector of the positive electrode plate and the uncoated current collector of the negative electrode plate each are respectively welded with an electrical conductive piece used to connect with an external circuit. The uncoated current collector of the positive electrode plate is punched to form an electrolyte transmission channel and/or the uncoated current collector of the negative electrode plate is punched to form an electrolyte transmission channel; a punching manner of the electrolyte transmission channel comprises following one manner or two manners: one manner is that an edge region of the uncoated current collector which is not aligned with the electrical conductive piece is punched to form an semi-closed channel, the other manner is that the uncoated current collector is punched to form a hole-like all-closed channel. In comparison with the technology in background, by that the uncoated current collector is punched to form the electrolyte transmission channel, electrolyte infiltration speed is improved, at the same time the rate performance and the cycle performance of the battery are promoted.