TY - JOUR
T1 - MRSST a new method to evaluate thermal stability of electrolytes for lithium ion batteries
AU - Botte, Gerardine G.
AU - Bauer, Timothy J.
N1 - Funding Information:
Financial support for this work was partially provided by Solvay, and the University of Minnesota Grant-in-Aid of research, artistry and scholarship.
PY - 2003/6/1
Y1 - 2003/6/1
N2 - The use of the Modified Reactive System Screening Tool (MRSST) to study the thermal stability of electrolytes for lithium ion batteries was demonstrated. Important data for the understanding of the thermal behavior of lithium ion batteries (vapor liquid equilibrium data, heat capacity, heats of vaporization, reaction rates, and heats of reaction) can be obtained with the MRSST. The technique also allows sampling of the system (gas phase or liquid phase) at any time. The thermal stability of EMC and EC was analyzed using the MRSST. The results indicated that EMC is thermally stable until 320 °C, while the EC decomposes at 263 °C generating gases such as CO2, O2, and H2. The effect of O2 on the thermal stability of EMC was also studied. It was found that EMC thermally decomposes in the presence of O2 between 220 and 235 °C generating non-condensable gases such as CO2.
AB - The use of the Modified Reactive System Screening Tool (MRSST) to study the thermal stability of electrolytes for lithium ion batteries was demonstrated. Important data for the understanding of the thermal behavior of lithium ion batteries (vapor liquid equilibrium data, heat capacity, heats of vaporization, reaction rates, and heats of reaction) can be obtained with the MRSST. The technique also allows sampling of the system (gas phase or liquid phase) at any time. The thermal stability of EMC and EC was analyzed using the MRSST. The results indicated that EMC is thermally stable until 320 °C, while the EC decomposes at 263 °C generating gases such as CO2, O2, and H2. The effect of O2 on the thermal stability of EMC was also studied. It was found that EMC thermally decomposes in the presence of O2 between 220 and 235 °C generating non-condensable gases such as CO2.
KW - Electrolyte decomposition
KW - Gas evolution
KW - Modified Reactive System Screening Tool
KW - Thermal runaway
KW - Thermal stability
UR - http://www.scopus.com/inward/record.url?scp=0038746659&partnerID=8YFLogxK
U2 - 10.1016/S0378-7753(03)00247-7
DO - 10.1016/S0378-7753(03)00247-7
M3 - Conference article
AN - SCOPUS:0038746659
VL - 119-121
SP - 815
EP - 820
JO - Journal of Power Sources
JF - Journal of Power Sources
SN - 0378-7753
Y2 - 22 June 2002 through 28 June 2002
ER -