Development of a plastic Li-ion battery cell for EV applications

Large plastic Li-ion (PLI) cells (25–28 Ah) have been fabricated for electric vehicle (EV) applications. The 28 Ah cells show high specific energy (160 Wh/kg), high specific power (526 W/kg), excellent round-trip energy efficiency (92%), and a low self-discharge rate (6% in 30 days). A 25 Ah cell of...

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Bibliographic Details
Published in:Journal of power sources 2001-10, Vol.101 (2), p.196-200
Main Authors: Han, K.N, Seo, H.M, Kim, J.K, Kim, Y.S, Shin, D.Y, Jung, B.H, Lim, H.S, Eom, S.W, Moon, S.I
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
EV battery
Exact sciences and technology
Li-ion
Plastic Li-ion
Safety test
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Summary:Large plastic Li-ion (PLI) cells (25–28 Ah) have been fabricated for electric vehicle (EV) applications. The 28 Ah cells show high specific energy (160 Wh/kg), high specific power (526 W/kg), excellent round-trip energy efficiency (92%), and a low self-discharge rate (6% in 30 days). A 25 Ah cell of an earlier design has a good cycle-life of up to 750 cycles at 100% depth-of-discharge (DOD) to 80% of its initial capacity. Cycle-life tests of a 28 Ah cell of a later design is in progress. Preliminary safety tests have also been carried out using 6 Ah cells of a similar electrode design. These give very encouraging results for the development of a safe, high-energy PLI battery for EV duty.
ISSN:0378-7753
1873-2755
DOI:10.1016/S0378-7753(01)00672-3