Electrochemical cell

Details Electrochemical cell Electrochemical cell

2002-08-27

2008-11-18

Maples, John S (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Electrode

C429S231100, C429S231500, C429S317000, C429S324000

Reexamination Certificate

active

07452630

ABSTRACT:
An electrochemical cell comprises as an anode, a lithium transition metal oxide or sulphide compound which has a [B2]X4n−spinel-type framework structure of an A[B2]X4spinel wherein A and B are metal cations selected from Li, Ti, V, Mn, Fe and Co, X is oxygen or sulphur, and n− refers to the overall charge of the structural unit [B2]X4of the framework structure. The transition metal cation in the fully discharged state has a mean oxidation state greater than +3 for Ti, +3 for V, +3,5 for Mn, +2 for Fe and +2 for Co. The cell includes as a cathode, a lithium metal oxide or sulphide compound. An electrically insulative lithium containing liquid or polymeric electronically conductive electrolyte is provided between the anode and the cathode.

REFERENCES:
patent: 4366215 (1982-12-01), Coetzer et al.
patent: 4507371 (1985-03-01), Thackeray et al.
patent: 4980251 (1990-12-01), Thackeray et al.
patent: 5147739 (1992-09-01), Beard
patent: 5160712 (1992-11-01), Thackeray et al.
patent: 5187033 (1993-02-01), Koshiba
patent: 5284721 (1994-02-01), Beard
patent: 5316877 (1994-05-01), Thackeray et al.
patent: 5545468 (1996-08-01), Koshiba et al.
patent: 0391281 (1990-10-01), None
patent: 0567149 (1993-10-01), None
patent: 2469013 (1981-05-01), None
patent: 2122412 (1984-01-01), None
patent: 2221213 (1990-01-01), None
patent: 2245264 (1992-01-01), None
patent: 2251119 (1992-06-01), None
patent: 2270195 (1994-03-01), None
patent: 57-152669 (1982-09-01), None
patent: 63-001708 (1988-01-01), None
patent: 04087268 (1992-03-01), None
Murphy, D. W. et al., “Ternary LixTO2 Phases from Insertion Reactions”, Solid State Ionics, 9 & 10 (1983), 413-417.
Colbow et al., “Structure and electrochemistry of the spinal oxides LiTi2O4and Li4/3Ti5/3O4,”J. Power Sources, 26:397-402 , 1989, no month.
Gummow et al., “Improved capacity retention in rechargeable 4 V lithium/lithium-manganese oxide (spinel) cells,”Solid State Ionics69:59-67, 1994, no month.
Ferg et al., “Spinel anodes for lithium-ion batteries,”J. Electrochem. Soc., 144(1): L147-L150, 1994, no month.
Fauteux et al., “Rechargeable lithium battery anodes: alternatives to metallic lithium,”J. of Applied Electrochemistry, 23:1-10, Jun. 1993.
Thackeray et al., “Electrochemical extraction of lithium from limn204,”Mat. Res. Bull., 19:179-187, 1984, October.

Affiliated with

Also associated with

Rating

Electrochemical cell does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrochemical cell, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrochemical cell will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4047941