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1. (WO2018222658) BATTERY LIFE ASSESSMENT AND CAPACITY RESTORATION

Pub. No.:    WO/2018/222658    International Application No.:    PCT/US2018/035039
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Thu May 31 01:59:59 CEST 2018
IPC: H01M 10/052
G01N 29/00
G01N 19/00
G01N 23/20
Applicants: TITAN ADVANCED ENERGY SOLUTIONS, INC.
Inventors: MURPHY, Shawn
SREEDHAR, Ashish
LEE, Vincent, Yuan-Hsiang
AFRICK, Steven
Title: BATTERY LIFE ASSESSMENT AND CAPACITY RESTORATION
Abstract:
Described herein are embodiments of methods and apparatus for determining the SoC and SoH a lithium ion battery and for restoring capacity to a lithium ion battery. Some embodiments provide a method and apparatus including an ultrasound transducer designed to measure characteristics of a lithium ion battery in order to determine the SoC and SoH of the lithium ion battery, and to disrupt the SSEI layer inside the lithium ion battery. Several other methods for determination of SoC and SoH and disruption of the SSEI layer are also described. Use of such methods and apparatus may be advantageous in assessing a state of the lithium ion battery, as well as rejuvenating a lithium ion battery and increasing its life span.