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Rechargeable batteries with high energy storage activated by in-situ induced fluorination of carbon nanotube cathode.

ABSTRACT: High performance rechargeable batteries are urgently demanded for future energy storage systems. Here, we adopted a lithium-carbon battery configuration. Instead of using carbon materials as the surface provider for lithium-ion adsorption and desorption, we realized induced fluorination of carbon nanotube array (CNTA) paper cathodes, with the source of fluoride ions from electrolytes, by an in-situ electrochemical induction process. The induced fluorination of CNTA papers activated the reversible fluorination/defluorination reactions and lithium-ion storage/release at the CNTA paper cathodes, resulting in a dual-storage mechanism. The rechargeable battery with this dual-storage mechanism demonstrated a maximum discharging capacity of 2174 mAh (gcarbon)(-1) and a specific energy of 4113 Wh kg(carbon)(-1) with good cycling performance.

SUBMITTER: Cui X

PROVIDER: S-EPMC4058880 | biostudies-literature | 2014

REPOSITORIES: biostudies-literature

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Rechargeable batteries with high energy storage activated by in-situ induced fluorination of carbon nanotube cathode.

Cui Xinwei X Chen Jian J Wang Tianfei T Chen Weixing W

Scientific reports 20140616

High performance rechargeable batteries are urgently demanded for future energy storage systems. Here, we adopted a lithium-carbon battery configuration. Instead of using carbon materials as the surface provider for lithium-ion adsorption and desorption, we realized induced fluorination of carbon nanotube array (CNTA) paper cathodes, with the source of fluoride ions from electrolytes, by an in-situ electrochemical induction process. The induced fluorination of CNTA papers activated the reversibl ...[more]

PMID: 24931036

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