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Non-aqueous electrolyte secondary cell

Patent 6146790 Issued on November 14, 2000. Estimated Expiration Date: Icon_subject December 22, 2017. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

Non aqueous electrolyte cell
Patent #: 4959281
Issued on: 09/25/1990
Inventor: Nishi, et al.

Non-aqueous electrolyte secondary battery and its production method
Patent #: 5395711
Issued on: 03/07/1995
Inventor: Tahara, et al.

Nonaqueous secondary battery
Patent #: 5618640
Issued on: 04/08/1997
Inventor: Idota, et al.

Non-aqueous electrolyte secondary battery
Patent #: 5709968
Issued on: 01/20/1998
Inventor: Shimizu

Graphitic electrode material for secondary battery and process for production thereof Patent #: 5721071
Issued on: 02/24/1998
Inventor: Sonobe, et al.

Inventors

Assignee

Application

No. 996312 filed on 12/22/1997

US Classes:

429/199, Halogen containing252/62.2, ELECTROLYTES FOR ELECTRICAL DEVICES (E.G., RECTIFIER, CONDENSER)429/324Chemically specified organic solvent containing

Examiners

Primary: Nuzzolillo, Maria
Assistant: Tsang, Susy

Attorney, Agent or Firm

Foreign Patent References

  • 0 347 952 A2 EP. 12/20/1989
  • 0 418 514 A1 EP. 03/20/1991

International Class

H01M 010/40

Foreign Application Priority Data

1996-12-27 JP

Abstract

In a non-aqueous electrolyte secondary cell, it is possible to control the irreversible capacity degradation which is caused when it is preserved under the condition of charging. The non-aqueous electrolyte secondary cell includes a positive electrode that is capable of doping and dedoping lithium and a negative electrode and non-aqueous electrolyte. Specifically, a monomethoxy benzene class compound is added to the non-aqueous electrolyte at a concentration ranging from 0.005 M to 0.5 M.

Other References

  • Patent Abstracts of Japan, vol. 014, No. 502 (E-0997), Nov. 2, 1990 and JP 02 207464 A (Show a Denko KK; Others: 01), Aug. 17, 1990
  • Patent Abstracts of Japan, vol. 014, No. 502 (E-0997), Nov. 2, 1990 and JP 02 207465 A (Show a Denko KK; Others: 01), Aug. 17, 1990
  • Patent Abstracts of Japan, vol. 015, No. 345 (C-0864), Sep. 3, 1991 and JP 03 137010 A (Sony Corp), Jun. 11, 199
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