公开(公告)号：US20240356357A1

公开(公告)日：2024-10-24

申请号：US18253288

申请日：2022-10-26

Applicant: Google LLC

Inventor： James Robert Lim ,  Chang Hong Ye ,  David Wang ,  Yuandan Li

IPC: H02J7/00

CPC classification number: H02J7/007194 ,  H02J7/0048 ,  H02J7/005 ,  H02J7/0069

Abstract: The present document describes techniques for extending battery life after long-term and high-temperature storage. These techniques delay charging of a battery to detect battery conditions and determine whether the battery was exposed to high temperatures while in an idle or low-power state for a long period of time. These techniques include a methodology to relax and refresh an anode surface of the battery, after high-temperature storage, through distinct and tailored discharges prior to beginning a normal charge profile. These techniques can be applied to a wide range of chemistry platforms, which may have kinetic (Li-ion) limitations, to extend the longevity of the battery by reducing lithium plating and capacity degradation caused by long-term, high-temperature storage.