Invention Grant
- Patent Title: Battery degradation monitoring system and methods
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Application No.: US17032668Application Date: 2020-09-25
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Publication No.: US11668756B2Publication Date: 2023-06-06
- Inventor: David Wang , Lauren Francine Chanen , James Robert Lim , Pak Heng Lau
- Applicant: Google LLC
- Applicant Address: US CA Mountain View
- Assignee: Google LLC
- Current Assignee: Google LLC
- Current Assignee Address: US CA Mountain View
- Agency: Colby Nipper PLLC
- Main IPC: G01R31/392
- IPC: G01R31/392 ; G01L9/00 ; H01M10/48 ; G01R31/389 ; G01R31/36

Abstract:
A method for monitoring battery degradation including receiving, from a pressure sensor, a first pressure value associated with a battery pack, comparing the first pressure reading to a first pressure threshold value and if the first pressure reading is greater than the first pressure threshold value, applying a first battery discharge pulse to the battery pack. The method further includes calculating a first internal resistance value of the battery pack in response to the first battery discharge pulse, comparing the first internal resistance value to an initial internal resistance value, and transmitting an alert to an electronic device if the first internal resistance value exceeds the initial internal resistance value.
Public/Granted literature
- US20220099749A1 Battery Degradation Monitoring System and Methods Public/Granted day:2022-03-31
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