Cartridge-type lithium ion polymer battery pack

• US 8,197,959 B2
• Filed: 08/20/2009
• Issued: 06/12/2012
• Est. Priority Date: 10/14/2003
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Ro, Jong Yul, Namgoong, John E.
• Primary Examiner(s): APICELLA, KARIE O
• Application Number:
  US12/544,765
• Publication Number:
  US 20090311590A1
• Time in Patent Office: 1,027 Days
• Field of Search: 429/148
• US Class Current: 429/148
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/0565 Polymeric materials, e.g. gel-type or solid-type
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 50/211 adapted for pouch cells
• CPC Class Codes: H01M 50/503 characterised by the shape of the interconnectors
• CPC Class Codes: H01M 50/51 Connection only in series
• CPC Class Codes: H01M 6/40 Printed batteries , e.g. thin film batteries
• CPC Class Codes: H01M 6/46 of flat cells
• CPC Class Codes: H01M 6/5044 Cells or batteries structurally combined with cell condition indicating means
• 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
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

Disclosed is a cartridge-type lithium ion polymer battery pack including: at least two lithium ion polymer batteries in which adjacent electrode tabs are connected to each other so as to form a predetermined series circuit with a desired instrument; and an upper plate and a lower plate disposed at the top and the bottom of the whole lithium ion polymer batteries, respectively, and coupled to each other so that each lithium ion polymer battery is partially covered with them. Multiple layers of the battery packs are laminated and fixed with ease so as to conform to the electric power requirement for a desired instrument.

Claims

1. A cartridge-type battery pack comprising:

a single battery; and

an upper plate and a lower plate disposed at top and bottom of the battery, respectively, and coupled to each other so that the battery is partially covered with the upper plate and the lower plate,

wherein each of the upper plate and the lower plate is provided with cross members disposed along the length of each plate, the cross members being spaced apart from each other by a predetermined distance in the direction of width, so that the battery in the battery pack is partially exposed to the exterior for cooling, and at least a part of the cross members have through-holes at end edges thereof and the battery pack can be integrally fixed by bolts and nuts via the through-holes.

2. The cartridge-type battery pack according to claim 1, wherein one of the upper plate and the lower plate has a plurality of protrusions for engagement at predetermined intervals and the other has a plurality of holes for engagement corresponding to the protrusions.

3. The cartridge-type battery pack according to claim 1, wherein each cross member is at least partially protruded out from the surface of the battery to which it is faced, so that the batteries in each battery pack can be cooled smoothly by the air.

4. The cartridge-type battery pack according to claim 1, wherein the upper plate and the lower plate of the battery pack are fixed with a fastener formed of an elastic material for fixing multiple battery packs integrally.

5. The cartridge-type battery pack according to claim 1, wherein the battery is a lithium ion polymer battery.