Low temperature li/fes2 battery

Details Low temperature li/fes2 battery Low temperature li/fes2 battery

H - Electricity

01

M

H01M 4/02 (2006.01) H01M 6/16 (2006.01) H01M 4/58 (2006.01) H01M 10/36 (2006.01) H01M 10/40 (2006.01)

Patent

CA 2577960

The invention is an electrochemical battery cell, such as a Li/FeS2 cell, with a nonaqueous liquid electrolyte having a solvent with a high ether content and a solute including LiI and one or more additional salts, preferably LiCF3SO3, that can avoid a sharp drop in voltage on high rate and high power discharge at low temperatures, while still providing reasonable capacity on high rate and high power discharge at room temperature. The electrolyte solvent includes 1,3-dioxolane and 1,2-dimethoxyethan in a volume ratio greater than 45 : 55 and less than 85 : 15. When the total solute concentration in the electrolyte is low (0.40 to 0.65 mol/l solvent), the solute contains at least 35 mole percent LiI, and when the total solute concentration in the electrolyte is high (greater than 0.65 to 2.0 mol/l solvent), the solute contains less than 35 mole percent LiI.

L'invention concerne un élément de batterie électrochimique, du type élément Li/FeS2, à électrolyte liquide non aqueux ayant un solvant à forte teneur en éther et un soluté qui comprend LiI ainsi qu'un ou plusieurs sels additionnels, de préférence LiCF3SO3, permettant d'éviter une brusque chute de tension sur décharge haut débit et haute puissance à basses températures, mais assurant néanmoins une capacité raisonnable sur décharge haut débit et haute puissance à température ambiante. Le solvant comprend 1,3-dioxolane et 1,2-diméthoxyéthane en rapport de volume supérieur à 45: 55 et inférieur à 85: 15. Lorsque la concentration totale de soluté est faible (0,40 à 0,65 mole/l solvant), le soluté contient Lil au moins à 35 % en pourcentage molaire, et lorsque la concentration totale de soluté est élevée (au-delà de 0,65 à 2 mole/l solvant), le soluté contient Lil à moins de 35 % en pourcentage molaire.

Affiliated with

Also associated with

Rating

Low temperature li/fes2 battery does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Low temperature li/fes2 battery, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Low temperature li/fes2 battery will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1389566