Impact of tripropyl borate on life and impedance of lithium-ion cells.

Journal Article · Mon Mar 10 00:00:00 EDT 2008 · Electrochim. Acta

DOI:https://doi.org/10.1016/j.electacta.2007.10.078· OSTI ID:927745

Chen, Z; Liu, J; Amine, K

Tripropyl borate was investigated as a low cost anion receptor to improve the performance of lithium-ion cells. The impact of tripropyl borate was examined using lithium-ion cells comprising a negative electrode of mesocarbon microbeads, a positive electrode of Li{sub 1.1}[Mn{sub 1/3}Ni{sub 1/3}Co{sub 1/3}]{sub 0.9}O{sub 2} and an LiPF{sub 6}-based electrolyte. It was found that the performance of the cells was improved by adding a proper amount of tripropyl borate ({le} 0.1 wt%) to the LiPF{sub 6}-based electrolyte. However, a small amount of gas was observed from cells with high contents of tripropyl borate when cycled at 55 C, and as a result, the performance of the cells deteriorated.

• Research Organization: Argonne National Lab. (ANL), Argonne, IL (United States)
• Sponsoring Organization: EE
• DOE Contract Number: DE-AC02-06CH11357
• OSTI ID: 927745
• Report Number(s): ANL/CSE/JA-60627; ELCAAV; TRN: US200816%%1194
• Journal Information: Electrochim. Acta, Vol. 53, Issue 8 ; Mar. 10, 2008; ISSN 0013-4686
• Country of Publication: United States
• Language: ENGLISH

Related Subjects

25 ENERGY STORAGE
BORATES
ELECTRODES
IMPEDANCE
PERFORMANCE
METAL-NONMETAL BATTERIES
LITHIUM
SERVICE LIFE