Stephanie T Brown

US Patent:

56442823, Jul 1, 1997

Filed:

Feb 6, 1995

Appl. No.:

8/383633

Inventors:

Alay M. Mehta - Lawrenceville GA
Stephanie D. Brown - Atlanta GA
Michael B. Kirschner - Alpharetta GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01H 8504
H01M 1400

US Classification:

337295

Abstract:

A battery pack (10) including at least one battery cell (26) and a circuit carrier (30) in proximity to the battery cell. Disposed in the battery pack, is a fuse (50) which is formed from an electrically conductive resilient material adapted to work as the fuse. The electrically conductive resilient material further is encapsulated with a material adapted to promote resistance to breakage due to shocks, bumping or droppage of battery packs into which the fuse is incorporated. When the temperature of the at least two battery cells reaches a predetermined trip point, the fuse releases from at least one of the batteries, due to the heat transfer from the battery cell, electrically disconnecting the battery cell from adjacent battery cells.

US Patent:

56374186, Jun 10, 1997

Filed:

Feb 8, 1996

Appl. No.:

8/598779

Inventors:

Stephanie D. Brown - Atlanta GA
Edmond Louie - Lawrenceville GA
Shekhar L. Pendalwar - Lawrenceville GA

Assignee:

Motorola, Inc. - Schaumburg IL

International Classification:

H01M 600

US Classification:

429127

Abstract:

A package for a flat electrochemical device comprises a flexible circuit board. Building from a base layer (62), the flexible circuit board has a conductor layer disposed on the outermost side of the base layer providing a first and second contact portion (56 and 58), a cover coat layer (50) is disposed over the conductor layer and the base layer over the outermost side of the base layer, a first collector (64) is disposed on the first half (47) on the innermost side of the base layer, and a second collector (66) is disposed on the second half (48) on the innermost side of the base layer. The first collector is electrically connected to a runner by a first plated through-hole (70), and the second collector is electrically connected to the second contact portion through a second plated through-hole (72). And finally, a fringe portion (68) is provided by the base layer about the periphery of the first and second halves. Upon assembly, an electrochemical cell stack is place on one half of the circuit board, the other half is folded over the cell stack, and the fringe portion of the first half is sealed to the fringe portion of the second half.