On safety of lithium-ion cells

Safety of lithium-ion cells is mainly related to thermal reactivity of the components. Active materials play a major role: carbon materials because they directly influence the kinetics of reactions at the negative electrode, positive materials because of their relation with their respective delithia...

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Bibliographic Details
Published in:Journal of power sources 1999-09, Vol.81, p.906-912
Main Authors: Biensan, Ph, Simon, B, Pérès, J.P, de Guibert, A, Broussely, M, Bodet, J.M, Perton, F
Format: Article
Language:English
Subjects:
Applied sciences
Direct energy conversion and energy accumulation
Electrical engineering. Electrical power engineering
Electrical power engineering
Electrochemical conversion: primary and secondary batteries, fuel cells
Exact sciences and technology
Lithium-ion
Materials
Safety
Thermal stability
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Summary:Safety of lithium-ion cells is mainly related to thermal reactivity of the components. Active materials play a major role: carbon materials because they directly influence the kinetics of reactions at the negative electrode, positive materials because of their relation with their respective delithiation state. Adequately substituted nickel based materials appear as the most stable positive materials. Electrolyte is mainly concerned through its reactivity with lithium of Li x C 6 and with O 2 generated by the positive materials decomposition. Moreover, non-active materials, in particular binders, also clearly influence thermal stability and consequently safety behaviour of lithium-ion cells.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(99)00135-4