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Lithium ion battery

  • US 8,088,509 B2
  • Filed: 04/11/2006
  • Issued: 01/03/2012
  • Est. Priority Date: 11/08/2005
  • Status: Active Grant
First Claim
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1. A lithium ion battery comprising:

  • an electrode core;

    an electrolyte solution;

    a metal shell; and

    an end cover assembly,said metal shell comprising an outer wall, an inner wall and a chamber,said electrode core and electrolyte solution being located in the chamber of the metal shell, andsaid electrode core being connected to the end cover assembly with an electrode terminal of the electrode core, whereinthe number of said electrode core is more than one, and the multiple electrode cores are located in the chamber of the metal shell,the chamber comprises multiple intercommunicated inner cavities, each of which holds one electrode core,multiple convex portions are provided on the inner wall of the metal shell and allow the electrolyte solution to pass therethrough, andone inner cavity comprises the space formed by each two adjacent convex portions and the inner wall of the metal shell.

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