Additive for enhancing the performance of electrochemical cells

Details Additive for enhancing the performance of electrochemical cells Additive for enhancing the performance of electrochemical cells

2007-02-06

2007-02-06

Cantelmo, Gregg (Department: 1745)

Chemistry: electrical current producing apparatus, product, and

Current producing cell, elements, subcombinations and...

Include electrolyte chemically specified and method

C429S199000, C429S329000, C429S332000, C252S519200

Reexamination Certificate

active

10625686

ABSTRACT:
A lithium battery includes an electrolyte comprised of a non-aqueous solvent, and a salt mixture. The salt mixture includes an alkali metal electrolyte salt and an additive salt having an anion of a mixed anhydride of oxalic acid and boric acid. Specific additive salts include lithium bis(oxalato) borate and lithium oxalyldifluoroborate. Particular electrolyte salts comprise LiPF6and LiBF4. The additive salt is present in an amount of 0.1–60 mole percent of the total of the additive salt and electrolyte salt content of the electrolyte. Also disclosed is a method for enhancing the performance characteristics of a lithium battery through the use of the electrolyte composition. Also disclosed is the compound lithium oxalyldifluoroborate.

REFERENCES:
patent: 5529859 (1996-06-01), Shu et al.
patent: 5626981 (1997-05-01), Simon et al.
patent: 5714281 (1998-02-01), Naruse et al.
patent: 6506516 (2003-01-01), Wietelmann et al.
patent: 6783896 (2004-08-01), Tsujioka et al.
Jow et al. “Nonaqueous Electrolytes for Wide Temperature Range Operations of Li-ion Cells” 11th International Meeting on Lithium Batteries, Monterey, CA (Jun. 23-28, 2002).
Xu et al. “LiBOB as Salt for Lithium-Ion Batteries” Electrochemical and Solid-State Letters, 5 (1) A26-A29 (2002).
Xu et al. “LiBOB and Its Derivatives” Electrochemical and Solid-State Letters, 4 (1) E1-E4 (2001).
Jow et al. “LiBOB as an Electrolyte Salt for Lithium Ion Cells” The 42nd Battery Symposium in Japan, Nov. 21-23, 2001, Yokahama, Japan.

Affiliated with

Also associated with

Rating

Additive for enhancing the performance of electrochemical cells does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Additive for enhancing the performance of electrochemical cells, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Additive for enhancing the performance of electrochemical cells will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3812286