Multi-cell batteries

• US 4,239,839 A
• Filed: 05/30/1979
• Issued: 12/16/1980
• Est. Priority Date: 05/31/1978
• Status: Expired due to Term

• Current Assignee: Dunlop Australia Limited
• Original Assignee: Dunlop Australia Limited
• Inventors: McDowall, William L., Maplesden, Alan K.
• Primary Examiner(s): Walton, Donald L.
• Application Number:
  US06/043,822
• Time in Patent Office: 566 Days
• Field of Search: 429/149, 429/154, 429/150, 429/152, 429/153, 429/158, 429/156, 429/159, 429/160, 429/9, 429/161
• US Class Current: 429/154
• CPC Class Codes: H01M 10/0413 Large-sized flat cells or batteries for motive or stationary systems with plate-like electrodes
• CPC Class Codes: H01M 10/122 Multimode batteries
• CPC Class Codes: H01M 10/4207 for several batteries or cells simultaneously or sequentially
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A multi-cell battery constructed of a plurality of frames of insulating material each frame having a number of active battery material areas arranged side by side with a division portion between each material area, the frames being arranged side by side in a direction normal to the plane of the frame with the division portions secured in sealed relation to form partitions between adjacent cells of the battery. The active battery material in respective areas being selected so that adjacent areas in each frame are of opposite polarity and adjacent areas in adjoining frames are of opposite polarity. A barrier frame interposed between and secured to two frames in the assembly forming a chemical and electrical barrier between the active battery material in frames on opposite sides of the barrier member so that the assembly of frames forms two batteries of equal nominal voltage.

Claims

1. A multi-cell battery comprising:

a first assembly of frames,

a second assembly of frames, and

barrier means interposed between said first and second assemblies of frames for electrically and chemically isolating said first and second assemblies from one another;

each of said first and second assemblies of frames comprising;

a plurality of frames secured together in side by side relation, each frame of each assembly having spaced division elements defining with the perimeter of the frame a plurality of support areas arranged side by side across the width of the frame, the perimeter and division elements of the frames in the respective assemblies being secured together in sealed relation so that the perimeters form outer walls of the battery and the division elements form partitions between adjacent cells of the battery, the frame at one end of each assembly of frames having the perimeter and division elements thereof secured in sealed relation to respective opposite sides of the barrier means,

individual masses of active battery material supported in each support area of the frames in each assembly so that each support area forms a plate of the battery, the active battery material in respective areas being selected so that adjacent areas in the same frame form plates of opposite polarity and corresponding areas in adjacent frames of the same assembly form plates of opposite polarity, and

an electrolyte porous insulating separator member between the active battery material of opposite polarity in said corresponding areas,

the first and second assemblies of frames thereby forming independent multi-cell batteries on opposite sides of the barrier means.

2. A multi-cell battery as claimed in claim 1 wherein said barrier means is a barrier frame having the same shape as the frames of the assemblies and portions forming divisions between adjacent support areas, said division portions being secured in sealed relationship to the division portions of the frames of the assemblies disposed on the opposite sides of said barrier frame, each area of the barrier frame formed by the division portions thereof being spanned by a sheet of material formed integral with the barrier frame.

3. A multi-cell battery as claimed in claim 2 wherein electric connector members extend through alternate division elements of the frames supporting active material, the arrangement of the connector members being such that each two adjacent frames supporting active battery material form a series connected group of cells.