Title :
Performance and characteristic of low temperature electrolytes lithium ion batteries for US Army applications
Author :
Au, George ; Locke, Laura
Author_Institution :
Res. Dev. & Eng. Center, US Army Commun. Electron. Command, Fort Monmouth, NJ, USA
Abstract :
Prototype D size lithium ion cells containing the Army 1 M LiPF/sub 6/ 1EC:1DMC:1EMC electrolyte have been demonstrated to operate at -30/spl deg/C. With greater than 73% of the initial capacity at 20/spl deg/C. The cell with Army electrolyte operates at higher voltage and higher energy density across the temperature ranges and at various rates. When the lithium ion cell cycling between 40/spl deg/C and -20/spl deg/C can cause the capacity fade rapidly as well.
Keywords :
electrochemistry; electrolytes; lithium; secondary cells; -30 C; 20 C; 40 to -20 C; D size cells; Li; Li-ion low-temperature electrolyte secondary batteries; LiPF/sub 6/; US Army applications; capacity fading; cycling; electrochemical characteristics; electrochemical performance; energy density; temperature ranges; Batteries; Conductivity; Design engineering; Gold; Lithium; Nickel; Power engineering and energy; Temperature distribution; Testing; Voltage;
Conference_Titel :
Battery Conference on Applications and Advances, 2000. The Fifteenth Annual
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
0-7803-5924-0
DOI :
10.1109/BCAA.2000.838416
