Battery formation/testing

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United States of America Patent

PATENT NO 11435404
SERIAL NO

17034588

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Abstract

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Techniques for controlling a current of a battery cell during formation and/or testing are described. A current sensor is used to measure the current of the battery cell, which is used as a feedback signal for controlling the current to achieve a target current. The transfer function of the current sensor is used to improve the accuracy of the current measurement. Because the transfer function can be regularly determined during formation/testing, a lower-cost current sensor with relatively poor temperature coefficient may be used. Any change in the gain of the current sensor may be detected by the transfer function determination and corrected for. Therefore, high current control accuracy may be achieved at lower cost.

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Patent Owner(s)

  • ANALOG DEVICES INTERNATIONAL UNLIMITED COMPANY

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Holland, William Michael James Edinburgh, GB 22 102
Kelso, Gina M Arlington, US 2 5
Lath, David J Boston, US 2 5
O'Donnell, John Jude Quin, IE 14 68
Ye, Shaoli Woburn, US 3 10

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