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:
Nov. 29, 2022

Filed:

Apr. 28, 2020
Applicant:

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

Inventors:

Xinxin Du, Ningde, CN;

Zhimin Dan, Ningde, CN;

Fuping Luo, Ningde, CN;

Shengwei Wang, Ningde, CN;

Tiancong Wang, Ningde, CN;

Xiyang Zuo, Ningde, CN;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01M 10/637 (2014.01); H01M 10/615 (2014.01); H02J 7/00 (2006.01);
U.S. Cl.
CPC ...
H01M 10/637 (2015.04); H01M 10/615 (2015.04); H02J 7/0047 (2013.01);
Abstract

Disclosed are a heating method for a rechargeable battery, a control unit and a heating circuit. The heating method comprises: determining a frequency value of a pulse current for heating the rechargeable battery in response to a heating command of the rechargeable battery; determining a current value of the pulse current according to the frequency value and an acquired state parameter of the rechargeable battery; judging whether the current value satisfies a preset heating demand; if the current value satisfies the heating demand, generating the pulse current under control according to the frequency value; if the current value does not satisfy the heating demand, re-determining the frequency value and the current value of the pulse current. The embodiments of the present disclosure further provide a control unit and a heating circuit.


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