Lithium secondary battery and method for manufacturing the same

Lithium secondary battery and method for manufacturing the same

  • CN 1,624,967 A
  • Filed: 12/02/2004
  • Published: 06/08/2005
  • Est. Priority Date: 12/04/2003
  • Status: Active Application
First Claim
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1. lithium secondary battery, possessing:

  • the anode mixture layer that will comprise positive active material and anodal binding agent is configured in the lip-deep positive pole of positive electrode collector, the negative pole that will comprise anode mixture layer sintering configuration on the surface of negative electrode collector of the negative electrode active material that contains silicon and/or silicon alloy and negative pole binding agent, be configured in the barrier film between described positive pole and the described negative pole, in the lithium secondary battery of nonaqueous electrolyte, it is characterized in that, described positive pole and described negative pole folder is practised physiognomy every described barrier film be wound into spiral helicine electrode body over the ground to be incorporated in the columnar battery case, be wound under the spiral helicine state, the radius of curvature of the anode mixture layer that folder is faced mutually every described barrier film and described anode mixture layer is more than 1.5mm.

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