Effect of entropy of lithium intercalation in cathodes and anodes on Li-ion battery thermal management

Journal Article · Tue Jun 01 00:00:00 EDT 2010 · Journal of Power Sources

DOI:https://doi.org/10.1016/j.jpowsour.2009.11.103· OSTI ID:978956

Viswanathan, Vilayanur V; Choi, Daiwon; Wang, Donghai; Xu, Wu; Towne, Silas A; Williford, Ralph E; Zhang, Jiguang; Liu, Jun; Yang, Zhenguo

The entropy changes (ΔS) in various cathode and anode materials, as well as complete Li-ion batteries, were measured using an electrochemical thermodynamic measurement system (ETMS). LiCoO₂ has a much larger entropy change than electrodes based on LiNi_xCo_yMn_zO₂ and LiFePO₄, while lithium titanate based anode has lower entropy change compared to graphite anodes. Reversible heat generation rate was found to be a significant portion of the total heat generation rate. The appropriate combinations of cathode and anode were investigated to minimize reversible heat.

• Research Organization: Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC05-76RL01830
• OSTI ID: 978956
• Report Number(s): PNNL-SA-68775; JPSODZ; TRN: US201010%%230
• Journal Information: Journal of Power Sources, Vol. 195, Issue 11; ISSN 0378-7753
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
36 MATERIALS SCIENCE
ANODES
CATHODES
ENTROPY
GRAPHITE
LITHIUM OXIDES
COBALT OXIDES
LITHIUM TITANATES
THERMODYNAMICS
METAL-NONMETAL BATTERIES
MATERIALS TESTING
lithium-ion battery
entropy
reversible and irreversible heat generate rate
safety