KIT | KIT-Bibliothek | Impressum | Datenschutz

Thermophysical properties of oxide cathode materials for lithium-ion batteries

Gotcu-Freis, P.; Seifert, H. J.


Lithium-ion batteries are presently used as power sources in energy storage applications due to the adapted functionality and chemistry for a long cycle life-time, high energy density, high power density and relatively simple reaction mechanisms. The main challenge not only for electric vehicles but also for smaller portable devices as well as high capacity stationary storage facilities is related to safety behaviour under normal and abusive operation conditions. Understanding the heat generation and propagation in lithium-ion batteries and avoiding thermal runaway at high temperature is a critical issue. In an attempt to improve the battery safety, battery management systems (BMS) were introduced for thermal controlling batteries of high power and energy density. Therefore the thermal transport properties such as thermal conductivity, thermal diffusivity and specific heat capacities are required for a well optimization of the BMS. This study is focused on the investigation of the thermophysical properties of cathode materials typically used in the production of lithium-ion batteries. The cathode materials under investigation are self-made (LiCoO2, Li(NiMnCo)O2) and commercially prepared (blends of LiCoO2 and LiMn2O4) composite thick films containing active material mixed with additives (binder and carbon black) deposited on aluminum current collector foils. ... mehr

Zugehörige Institution(en) am KIT Institut für Angewandte Materialien – Angewandte Werkstoffphysik (IAM-AWP)
Publikationstyp Vortrag
Publikationsjahr 2015
Sprache Englisch
Identifikator KITopen-ID: 230103347
HGF-Programm 37.01.04 (POF III, LK 01) Portfoliothemen
Veranstaltung EMN Meeting on Photocatalysis, Las Vegas, Nev., November 21-24, 2015
KIT – Die Forschungsuniversität in der Helmholtz-Gemeinschaft
KITopen Landing Page