Inertially activated battery

• US 20090202891A1
• Filed: 11/05/2004
• Published: 08/13/2009
• Est. Priority Date: 11/05/2004
• Status: Abandoned Application

• Current Assignee: United States Of America As Represented By The Secretary Of The Army (Government of the United States of America)
• Original Assignee: United States Of America As Represented By The Secretary Of The Army (Government of the United States of America)
• Inventors: Morganstein, Mel
• Application Number:
  US10/985,066
• Publication Number:
  US 20090202891A1
• Time in Patent Office: Days
• US Class Current: 429/80
• CPC Class Codes: F42C 11/008 Power generation in electric fuzes F42C11/02, F42C11/04 and F42C15/295 take precedence
• CPC Class Codes: H01M 50/70 Arrangements for stirring or circulating the electrolyte
• CPC Class Codes: H01M 6/38 by mechanical means

Abstract

An inertially activated electrochemical cell has a first and a second electrode and an electrolyte. The electrolyte, or at least an active component thereof, is enclosed in an encapsulant which can be disrupted when a compressive force is applied thereto. When the electrolyte material is encapsulated, the cell is inactive and has a long storage life. When the cell is exposed to a predetermined level of acceleration or deceleration, the encapsulant is subjected to a compressive force causing it to be thereby disrupted freeing the electrolyte material and rendering the cell active.

Claims

1-19. -19. (canceled)

20. A battery for a projectile comprising:

a casing being a substantially hollow vessel and having a top and closed bottom with two apertures located in said top;

two “

L”

shaped terminals placed into the casing through said top apertures and located opposite one another, the bottom portions of each terminal being parallel to one another and spaced a distance apart;

a plurality of electrodes disposed between said terminals and separated from one another by layers of stacked frangible microcapsules that contain an electrolyte material;

a fibrous separator material disposed between each of said electrodes;

at least one of said terminals being moveably affixed to said casing; and

at least one inertial mass in communication with at least one of said moveably affixed terminals in order to apply a compressive force through physical contact caused by motion against said layers of stacked frangible microcapsules when subjected to a setback force.

21. (canceled)