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Synthesis method of micro-sized and porous LiFePO4/C composites by the two-step crystallization process and their application method to cathode materials in Li-ion batteries

机译:两步结晶法合成微米级多孔LiFePO4 / C复合材料的方法及其在锂离子电池正极材料中的应用

摘要

PURPOSE: A preparing method of LiFePO4/C composite is provided to manufacture a LiFePO4/c composite high tap density and excellent high rate-capacity and to manufacture LiFePO4/C of various particle shapes from LiFePO4 seed crystals of various particle sizes and shapes. CONSTITUTION: A preparing method of LiFePO4/C composite comprises: a step of preparing LiFePO4 seed crystal through a hydrothermal synthesis method, a step of dispersing the LiFePO4 seed crystals into a mixture solution of distilled water and ethanol, and additionally putting FeSO47H2O, LiNO3, NH4H2PO4 and sucrose into, and stirring and mixing the materials; and a step of heating the outcome of the previous step in a nitrogen and hydrogen atmosphere.
机译:目的:提供一种LiFePO4 / C复合材料的制备方法,以制造高振实密度和优异的高倍率容量的LiFePO4 / c复合材料,并由各种粒径和形状的LiFePO4晶种制造各种颗粒形状的LiFePO4 / C。组成:LiFePO4 / C复合材料的制备方法包括:通过水热合成法制备LiFePO4晶种的步骤,将LiFePO4晶种分散在蒸馏水和乙醇的混合溶液中,另外加入FeSO47H2O,LiNO3,将NH4H2PO4和蔗糖倒入,搅拌并混合;在氮气和氢气气氛中加热前一步骤的结果的步骤。

著录项

  • 公开/公告号KR101227107B1

    专利类型

  • 公开/公告日2013-01-28

    原文格式PDF

  • 申请/专利权人

    申请/专利号KR20110056884

  • 申请日2011-06-13

  • 分类号H01M4/58;H01M4/04;H01M10/0525;

  • 国家 KR

  • 入库时间 2022-08-21 16:25:49

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