WO2016188477A3 - 碳包覆三元正极材料及其制备方法、锂离子电池 - Google Patents

碳包覆三元正极材料及其制备方法、锂离子电池 Download PDF

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WO2016188477A3
WO2016188477A3 PCT/CN2016/083632 CN2016083632W WO2016188477A3 WO 2016188477 A3 WO2016188477 A3 WO 2016188477A3 CN 2016083632 W CN2016083632 W CN 2016083632W WO 2016188477 A3 WO2016188477 A3 WO 2016188477A3
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positive electrode
electrode material
ternary positive
material precursor
suspension
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WO2016188477A2 (zh
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褚晓东
何建福
李宝华
贺艳兵
刘玉秀
杜鸿达
康飞宇
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清华大学深圳研究生院
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    • C01G45/1221—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof
    • C01G45/1228—Manganates or manganites with a manganese oxidation state of Mn(III), Mn(IV) or mixtures thereof of the type [MnO2]n-, e.g. LiMnO2, Li[MxMn1-x]O2
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    • C01G51/50—Cobaltates containing alkali metals, e.g. LiCoO2 containing manganese of the type [MnO2]n-, e.g. Li(CoxMn1-x)O2, Li(MyCoxMn1-x-y)O2
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    • C01G53/50—Nickelates containing alkali metals, e.g. LiNiO2 containing manganese of the type [MnO2]n-, e.g. Li(NixMn1-x)O2, Li(MyNixMn1-x-y)O2
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Abstract

一种碳包覆三元正极材料的制备方法，其步骤如下：制备三元正极材料前驱体；制备该三元正极材料前驱体的悬浊液，该悬浊液中该三元正极材料前驱体的质量百分比浓度为5%~30%；按Li:（Ni+Co+Mn）为1.03~1.05:1的摩尔比往该三元正极材料前驱体的悬浊液中加入丙烯酸锂；在50℃~80℃的温度下往该带丙烯酸锂的三元正极材料前驱体的悬浊液中加入过硫酸铵，以使丙烯酸锂进行聚合反应从而得到聚丙烯酸锂包覆的三元正极材料前驱体的悬浊液，该过硫酸铵的质量为该丙烯酸锂质量的2%~10%，反应时间为5~8小时；对该聚丙烯酸锂包覆的三元正极材料前驱体的悬浊液进行干燥，得到球状颗粒；以及对该聚丙烯酸锂包覆的三元正极材料前驱体颗粒进行烧结，得到碳包覆三元正极材料。
PCT/CN2016/083632 2015-05-28 2016-05-27 碳包覆三元正极材料及其制备方法、锂离子电池 WO2016188477A2 (zh)

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CN104882589B (zh) 2015-05-28 2017-03-22 清华大学深圳研究生院 碳包覆三元正极材料及其制备方法、锂离子电池
CN105244495B (zh) * 2015-10-08 2018-08-31 昆明理工大学 一种复合氢氧化物纳米片的制备方法
CN106277062B (zh) * 2016-08-15 2018-02-16 河南师范大学 一种钛酸锰锂正极材料的制备方法
CN110662717B (zh) * 2017-03-03 2022-04-15 尤米科尔公司 用于制备针对可再充电锂离子电池的基于Ni的阴极材料的前体和方法
CN107634205A (zh) * 2017-09-12 2018-01-26 合肥国轩高科动力能源有限公司 一种磷酸铁锂正极材料的制备方法
CN107863524A (zh) * 2017-10-20 2018-03-30 合肥国轩高科动力能源有限公司 一种锂离子电池高镍正极材料及其制备方法
CN109273674A (zh) * 2018-07-31 2019-01-25 广东工业大学 一种聚丙烯酸锂包覆的三元正极材料及其制备方法和应用
CN109119612B (zh) * 2018-08-27 2020-05-22 高点(深圳)科技有限公司 正极材料前驱体及其制备方法、正极材料及其制备方法、正极和电池
CN110040790B (zh) * 2019-04-29 2021-06-04 南通金通储能动力新材料有限公司 一种高球形度镍钴锰三元前驱体及其制备方法
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CN115286051B (zh) * 2022-08-09 2023-06-27 荆门市格林美新材料有限公司 一种四元正极前驱体及其制备方法和应用
CN115724420B (zh) * 2022-09-30 2024-04-16 深蓝汽车科技有限公司 一种双金属掺杂多孔碳材料、制备方法、应用及其包覆正极材料和制备方法
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CN117106133B (zh) * 2023-10-25 2024-04-09 宁德时代新能源科技股份有限公司 聚合物、底涂浆料、复合集流体、二次电池及用电装置

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CN103474628A (zh) * 2013-09-22 2013-12-25 深圳市倍特力电池有限公司 碳包覆三元正极材料的制备方法及该碳包覆三元正极材料
CN104882589A (zh) * 2015-05-28 2015-09-02 清华大学深圳研究生院 碳包覆三元正极材料及其制备方法、锂离子电池

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