Search International and National Patent Collections

1. (WO2017155928) METHOD TO CHARGE LITHIUM-ION BATTERIES WITH USER, CELL AND TEMPERATURE AWARENESS

Pub. No.:    WO/2017/155928    International Application No.:    PCT/US2017/021062
Publication Date: Fri Sep 15 01:59:59 CEST 2017 International Filing Date: Wed Mar 08 00:59:59 CET 2017
IPC: H02J 7/00
Applicants: THE REGENTS OF THE UNIVERSITY OF MICHIGAN
Inventors: SHIN, Kang G.
HE, Liang
Title: METHOD TO CHARGE LITHIUM-ION BATTERIES WITH USER, CELL AND TEMPERATURE AWARENESS
Abstract:
Lithium-ion cells are widely used in various platforms, such as electric vehicles (EVs) and mobile devices. Complete and fast charging of cells has always been the goal for sustainable system operation. However, fast charging is not always the best solution, especially in view of a new finding that cells need to rest/relax after being charged with high current to avoid accelerated capacity fading. A user aware charging algorithm is proposed which maximizes the charged capacity within a user-specified available charging time (i.e., user-awareness) while ensuring enough relaxation (i.e., cell-awareness) and keeping cell temperature below a safe level.