Charge-discharge characteristics of the mesocarbon microbeads heat-treated at different temperatures

Journal Article · Sat Apr 01 00:00:00 EST 1995 · Journal of the Electrochemical Society

DOI:https://doi.org/10.1149/1.2044128· OSTI ID:64782

Mabuchi, Akihiro; Tokumitsu, Katsuhisa; Fujimoto, Hiroyuki; Kasuh, Takahiro ^[1]

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1. Osaka Gas Co., Osaka (Japan). Research and Development Center

Mesocarbon microbeads (MCMB) is one of the promising carbon materials as anodes for rechargeable lithium batteries among commercially available carbon materials. have examined the correlation between carbon structures and charge-discharge characteristics of the MCMBs prepared at different heat-treatment temperatures. It was found that the MCMB heat-treated at 700 C possesses a tremendously high charge-discharge capacity of 750 Ah/kg. This suggests that there is another mechanism for the charge-discharge reaction besides a graphite intercalation compound mechanism which is well known. Therefore, the authors propose a cavity mechanism in which intercrystallite spaces in MCMB are capable of storing lithium species.

• Sponsoring Organization: USDOE
• OSTI ID: 64782
• Journal Information: Journal of the Electrochemical Society, Vol. 142, Issue 4; Other Information: PBD: Apr 1995
• Country of Publication: United States
• Language: English

Related Subjects

25 ENERGY STORAGE
ELECTRIC BATTERIES
ANODES
BATTERY CHARGING
VOLTAGE DROP
HEAT TREATMENTS
LITHIUM
CARBONACEOUS MATERIALS
CLATHRATES