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.

Date of Patent:
Jan. 06, 2026

Filed:

Jun. 17, 2025
Applicant:

Contemporary Amperex Technology Co., Limited, Ningde, CN;

Inventors:

Hongyan Liao, Ningde, CN;

Feng Guan, Ningde, CN;

Chen Huang, Ningde, CN;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01M 8/04276 (2016.01); H01M 50/609 (2021.01);
U.S. Cl.
CPC ...
H01M 50/609 (2021.01);
Abstract

A liquid injection device comprises a vacuumizing air path, first-level and second-level cups, injection paths, and liquid flowing assemblies. The first-level cup is formed with a plurality of buffer cavities that are isolated from each other; the second-level cup is formed with a plurality of liquid injection cavities that are isolated from each other; the liquid injection cavities are all communicated with the vacuumizing air path; each injection path is communicated with one buffer cavity; the liquid flowing assemblies, the buffer cavities, and the liquid injection cavities are arranged in a one-to-one correspondence manner; each liquid flowing assembly comprises a liquid flowing channel and a first switch element; the liquid flowing channel is communicated with one buffer cavity and one liquid injection cavity; and the first switch element is arranged in the liquid flowing channel to selectively open or close the liquid flowing channel.


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