一种带有空穴结构的磷酸锰铁锂正极材料及其制备方法
本发明涉及锂离子电池技术领域,具体涉及一种带有空穴结构的磷酸锰铁锂正极材料及其制备方法,本发明依次通过酸处理和碳包覆,不仅降低磷酸锰铁锂材料的pH值,而且降低其比表面积,提高压实密度,使得材料的加工性能得到极大程度的改善,且形成纳米空穴结构,有效提升材料的导电性能,纳米空穴具有保液功能,制成电池后,正极材料与电解液的浸润性好,从而提高了电池的电解液利用率,提升了电池的倍率性能和循环性能。
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