Mechanism of lithium storage in low temperature carbon

Yu Ping Wu, Chun Rong Wan, Chang Yin Jiang, Shi Bi Fang, Ying Yan Jiang

Research output: Contribution to journalArticlepeer-review

178 Scopus citations

Abstract

Through measurement of the intensity of the EPR signal of carbon anodes at different discharge and charge potentials, a micropore mechanism is suggested for the storage of lithium in low temperature carbons (LTCs), and it is further confirmed by results from the addition of pore-genic agent and introduction of crosslinker DVB into addition polymers PAN and P(4-VP). The size of micropores acting effectively as 'reservoirs' for lithium storage is suggested to be below 100 nm. The phenomena, which are characteristic in LTCs such as voltage hysteresis and capacity fading, are explained through the suggested mechanism.

Original languageEnglish
Pages (from-to)1901-1908
Number of pages8
JournalCarbon
Volume37
Issue number12
DOIs
StatePublished - 1999
Externally publishedYes

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