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The Synthesis of LiMn_xFe_1-xPO?/C Cathode Material through Solvothermal Jointed with Solid-State Reaction.

ABSTRACT: LiMn_xFe_1-xPO?/C material has been synthesized through a facile solid-state reaction under the condition of carbon coating, using solvothermal-prepared LiMnPO? and LiFePO? as precursors and sucrose as a carbon resource. XRD and element distribution analysis reveal completed solid-state reaction of precursors. LiMn_xFe_1-xPO?/C composites inherit the morphology of precursors after heat treatment without obvious agglomeration and size increase. LiMn_xFe_1-xPO? solid solution forms at low temperature around 350 °C, and Mn²⁺/Fe²⁺ diffuse completely within 1 h at 650 °C. The LiMn_xFe_1-xPO?/C (x < 0.8) composite exhibits a high-discharge capacity of over 120 mAh·g^-1 (500 Wh·kg^-1) at low C-rates. This paves a way to synthesize the crystal-optimized LiMn_xFe_1-xPO?/C materials for high performance Li-ion batteries.

SUBMITTER: He X

PROVIDER: S-EPMC5457063 | biostudies-literature | 2016 Sep

REPOSITORIES: biostudies-literature

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The Synthesis of LiMnxFe1-xPO₄/C Cathode Material through Solvothermal Jointed with Solid-State Reaction.

He Xiangming X Wang Jixian J Dai Zhongjia Z Wang Li L Tian Guangyu G

Materials (Basel, Switzerland) 20160908 9

LiMnxFe1-xPO₄/C material has been synthesized through a facile solid-state reaction under the condition of carbon coating, using solvothermal-prepared LiMnPO₄ and LiFePO₄ as precursors and sucrose as a carbon resource. XRD and element distribution analysis reveal completed solid-state reaction of precursors. LiMnxFe1-xPO₄/C composites inherit the morphology of precursors after heat treatment without obvious agglomeration and ...[more]

PMID: 28773887

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