John V Hellmann

US Patent:

6512347, Jan 28, 2003

Filed:

Oct 18, 2001

Appl. No.:

09/978901

Inventors:

John Vincent Hellmann - Rochester Hills MI
Jianmin Zhu - Troy MI

Assignee:

General Motors Corporation - Detroit MI

International Classification:

H02J 700

US Classification:

320107, 429120

Abstract:

A battery system including at least one battery cell having an interior and having at least one exterior surface is provided with at least one cooling plate that is positioned in engagement with the exterior surface for absorbing heat from the interior of the battery cell. A cooling tube is thermally coupled to the cooling plate for absorbing heat from the cooling plate.

US Patent:

8105709, Jan 31, 2012

Filed:

Aug 14, 2008

Appl. No.:

12/191582

Inventors:

John V. Hellmann - Rochester Hills MI, US

Assignee:

Cobasys LLC - Orion MI

International Classification:

H01M 6/42
H01M 2/30

US Classification:

429121, 429149

Abstract:

There is disclosed a battery module that includes a housing. At least one terminal is melt joined with the bus member of the housing sealing the terminal relative to the bus member and providing a conductive path to an interior of the battery module. The terminal may be melt joined in an ultrasonic joining operation or in a thermal insertion operation. A plurality of cells are disposed in the housing with each of the cells electrically coupled via bus bars integrated into a bus member. Each of the cells includes a plurality of positive and negative electrodes that are spaced by a separator. The negative electrode includes a substrate having tab meeting at a flange that is connected to an active material portion of the electrode. The positive electrode includes a substrate having a tab meeting at a flange that is connected to an active material portion of the electrode.

US Patent:

20120115017, May 10, 2012

Filed:

Jan 18, 2012

Appl. No.:

13/352981

Inventors:

John V. Hellmann - Rochester Hills MI, US

International Classification:

H01M 2/02

US Classification:

429159

Abstract:

There is disclosed a battery module that includes a housing. At least one terminal is melt joined with the bus member of the housing sealing the terminal relative to the bus member and providing a conductive path to an interior of the battery module. The terminal may be melt joined in an ultrasonic joining operation or in a thermal insertion operation. A plurality of cells are disposed in the housing with each of the cells electrically coupled via bus bars integrated into a bus member. Each of the cells includes a plurality of positive and negative electrodes that are spaced by a separator. The negative electrode includes a substrate having tab meeting at a flange that is connected to an active material portion of the electrode. The positive electrode includes a substrate having a tab meeting at a flange that is connected to an active material portion of the electrode.