公开(公告)号：US20230402668A1

公开(公告)日：2023-12-14

申请号：US17837964

申请日：2022-06-10

Applicant: Apple Inc.

Inventor： Wei He ,  Guangyu Liu ,  Tai Sik Hwang

IPC: H01M10/48

CPC classification number: H01M10/486 ,  G01K2217/00

Abstract: A battery includes a battery cell and processing circuitry. The processing circuitry is configured to determine an estimated temperature of the battery cell as a function of various models. The models include a battery cell heat generation model that receives a first input indicative of a battery voltage measurement, a second input indicative of a voltage corresponding to a battery open-circuit voltage (OCV) model, and a third input indicative of a battery current measurement. The models also include a gas gauge and system heat generation model that receives the third input. The models also include a battery and gas gauge heat transfer model that receives a fourth input indicative of a gas gauge temperature measurement.