Tao Chuan Wang, Age 72Novi, MI

2013014, Jun 13, 2013

Dec 5, 2012

13/705753

GM Global Technology Operations LLC - Detroit MI, US
Xie Tao - Troy MI, US
Tao Wang - Oakland Township MI, US
Ramona Y. Ying - Rochester Hills MI, US
Robert S. Conell - Sterling Heights MI, US

GM Global Technology Operations LLC - Detroit MI

H02J 7/00

320127

Methods and systems for depowering a rechargeable battery in a rapid, yet controlled, manner. The methods comprise (i) providing a depowering medium comprising expanded graphite (and optionally, one or more dispersible non-ionic electric conductors) dispersed in a substantially non-ionic aqueous medium; (ii) contacting terminals of the battery with the depowering medium; and (iii) maintaining contact between the depowering medium and terminals for a period of time sufficient to depower the battery. The systems comprise (i) the depowering medium; and (ii) a container configured to receive a battery and the depowering medium such that the battery body is contacted with the depowering medium prior to the terminals.

2021012, Apr 29, 2021

Oct 25, 2019

16/664119

- Detroit MI, US
Tao Wang - Oakland Township MI, US
Michael P. Barker - Troy MI, US
Charles A. Campbell - Commerce Township MI, US

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

H04W 52/02
H04L 29/08
H04Q 9/00

A monitor and control system and a method of monitoring and controlling an onboard system of an assembly includes one or more of a plurality of sensors detects whether an event occurred in the onboard system. The sensors communicate with a master controller when the master controller is in a nominal mode in which the master controller is powered on to actively monitor the sensors, and includes a sleep mode in which the master controller is powered off and does not monitor the sensors when in the sleep mode. An agent controller monitors the sensors when the master controller is in the sleep mode. One or more of the sensors signal the agent controller that the event has occurred. The agent controller signals the master controller to awaken from the sleep mode in response to the one or more of the sensors signaling the agent controller of the event.

2020001, Jan 9, 2020

Jul 9, 2018

16/030083

- Detroit MI, US
Fang Wang - Troy MI, US
Tao Wang - Oakland Township MI, US
Theodore T. Kim - Rochester Hills MI, US
Larry T. Nitz - South Lyon MI, US

GM Global Technology Operations LLC - Detroit MI

H02J 7/00

A battery system includes a battery module, an active cell balancing circuit, and a battery controller. Each cell has diametrically-opposed positive and negative cell tabs. The circuit includes voltage sensors and, at each end of the battery module, first and second tiers of switches and an energy storage element. Each voltage sensor is located between a different pair of adjacent cells. The controller receives measured voltages from the sensors indicative of an electric potential between adjacent battery cells. Responsive to the measured voltages, the controller commands the first tier to selectively connect or disconnect designated pairs of cells to the corresponding second tier. The controller also commands the second tier to selectively connect or disconnect the designated cells to a corresponding energy storage element. This action shuttles energy between the designated pairs of battery cells to balance a state of charge.

2019038, Dec 26, 2019

Jun 22, 2018

16/015896

- Detroit MI, US
Jeffrey Johnson - Clarkston MI, US
Theodore T. Kim - Rochester Hills MI, US
Tao Wang - Oakland Township MI, US
Janpreet S. Basi - Northville MI, US

GM Global Technology Operations LLC - Detroit MI

B60L 11/18
H02J 7/00

A high-voltage electrical system includes a high-voltage electrical bus, a low-voltage controller performing battery management system (BMS) functions, and a rechargeable energy storage system (RESS) connected to the HV electrical bus. The RESS has contactors connected to the voltage rails, a battery pack, a current sensor outputting a voltage signal indicative of pack current, cell monitoring units (CMUs) connected to designated battery cells that measure corresponding cell voltages, and voltage isolation hardware between the CMUs and the LV controller. The voltage isolation hardware includes the contactors and may include a transformer. The RESS and LV controller are connected via LV serial connections such that the LV controller performs the designated BMS functions, including monitoring the pack current and controlling an open/closed state of the contactors. A powertrain system includes the electrical system, an electric machine, and a coupled load.

2018023, Aug 23, 2018

Feb 17, 2017

15/435820

- Detroit MI, US
Mei Cai - Bloomfield Hills MI, US
Tao Wang - Oakland Township MI, US
Mohammed Bahauddin - Rochester Hills MI, US
Sherman Zeng - Troy MI, US

C09D 171/00
H01M 2/10
H01M 10/0525

The present disclosure provides a battery pack component including a self-healing coating. The self-healing coating is disposed on at least a portion of a surface of the battery pack component. The self-healing coating includes a first precursor including a cyclic ether capable of reacting in a self-healing cationic ring-opening polymerization reaction. The self-healing coating further includes an initiator including an alkali metal salt. The self-healing cationic ring-opening polymerization reaction occurs when a defect is present in the self-healing coating. In certain aspects, the cyclic ether may include 1,3-dioxolane (CHO) and the initiator may include lithium bis(fluorosulfonyl)imide (FNaNOS). In other aspects, the self-healing coating may include a second precursor that is capable of copolymerizing with the first precursor. In still other aspects, the present disclosure provides a method of making a self-healing coating for a battery pack component.

2017030, Oct 19, 2017

Sep 1, 2016

15/254662

- Detroit MI, US
Jeffrey Johnson - Clarkston MI, US
Tao Wang - Oakland Township MI, US

GM GLOBAL TECHNOLOGY OPERATIONS LLC - Detroit MI

H01M 10/42
H01M 10/48
B60L 11/18
H02K 7/00
H01M 2/20
H04B 1/48
H01M 10/42
H01M 10/42

A battery module for use with a controller includes a printed circuit board assembly (PCBA) mounted to a plurality of battery cells. The PCBA includes a substrate, a radio frequency (RF) communications circuit, a cell sensing circuit, and a conductive interconnecting member. The cell sensing circuit is operable for measuring a respective cell voltage of each of the battery cells. The conductive interconnect member forms an electrical connection between the battery cells. The RF communications circuit is in wireless communication with the controller and is operable for wirelessly transmitting the measured cell voltages to the controller. A battery system includes a master battery controller and the battery pack. A vehicle includes an electric machine operable for generating output torque for propelling the vehicle, as well as the battery system noted above.

2017027, Sep 21, 2017

Mar 17, 2016

15/073301

- Detroit MI, US
Mei Cai - Bloomfield Hills MI, US
Zhongying Shi - Sunnyvale CA, US
Tao Wang - Oakland Township MI, US
Wayne Z. Ptasinski - Sterling Heights MI, US
Simon T. Dunmore - West Bloomfield MI, US
William J. Wallace - Beverly Hills MI, US
Helen X. Qin - Sterling Heights MI, US
Li Yang - Troy MI, US

H01M 10/637
H01M 10/613
H01M 10/625
H01M 10/658
H01M 10/653
H01M 10/6556
H01M 10/6568
H01M 2/10
H01M 10/647

Examples of battery pack systems that include polymers are a cooling system, a thermal management system, and a liquid leakage control system. The cooling system and the thermal management systems may include an upper critical solution temperature polymer or a lower critical solution temperature polymer. The liquid leakage control system includes a superabsorbent polymer.