CN115066768A - 正极活性材料及包含其的电化学装置 - Google Patents

正极活性材料及包含其的电化学装置 Download PDF

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CN115066768A
CN115066768A CN202080096145.XA CN202080096145A CN115066768A CN 115066768 A CN115066768 A CN 115066768A CN 202080096145 A CN202080096145 A CN 202080096145A CN 115066768 A CN115066768 A CN 115066768A
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active material
positive electrode
peak
electrochemical device
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CN115066768B (zh
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王凯
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Ningde Amperex Technology Ltd
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    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H01M4/131—Electrodes based on mixed oxides or hydroxides, or on mixtures of oxides or hydroxides, e.g. LiCoOx
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
    • H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
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    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
    • H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
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Abstract

本申请提供了一种正极活性材料及包含其的电化学装置。所述正极活性材料的59Co NMR谱中存在第一峰和第二峰，其中所述第一峰的中心位置位于A ppm处，所述第二峰的中心位置位于B ppm处，其中13900≤A<B≤14300。采用上述正极活性材料的电化学装置在高电压下能够呈现出优异的循环稳定性和倍率性能。

Description

PCT国内申请，说明书已公开。

Claims (11)

  1. PCT国内申请，权利要求书已公开。
CN202080096145.XA 2020-03-18 2020-03-18 正极活性材料及包含其的电化学装置 Active CN115066768B (zh)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116053407A (zh) * 2023-03-31 2023-05-02 宁德新能源科技有限公司 二次电池及电子装置

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1441508A (zh) * 2002-02-28 2003-09-10 住友化学工业株式会社 非水二次电池的电极材料
US20100264381A1 (en) * 2005-09-29 2010-10-21 Massachusetts Institute Of Technology Oxides having high energy densities
CN104919631A (zh) * 2012-12-14 2015-09-16 尤米科尔公司 涂覆有内芯材料元素与一种或多种金属氧化物的混合物的锂金属氧化物颗粒
CN105449197A (zh) * 2015-12-28 2016-03-30 中信国安盟固利电源技术有限公司 一种锂离子电池正极材料及其制备方法
WO2016098553A1 (ja) * 2014-12-17 2016-06-23 日立化成株式会社 リチウムイオン二次電池
CN106104869A (zh) * 2014-03-11 2016-11-09 三洋电机株式会社 非水电解质二次电池用正极活性物质以及非水电解质二次电池用正极
CN106848224A (zh) * 2017-01-20 2017-06-13 中国科学院物理研究所 锂离子电池阳离子无序富锂正极材料及其制备方法和应用

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AU2003266620A1 (en) * 2002-09-26 2004-04-19 Seimi Chemical Co., Ltd. Positive electrode active substance for lithium secondary battery and process for producing the same
CN109346760A (zh) * 2014-09-29 2019-02-15 深圳新宙邦科技股份有限公司 一种高电压锂离子电池的电解液及高电压锂离子电池

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1441508A (zh) * 2002-02-28 2003-09-10 住友化学工业株式会社 非水二次电池的电极材料
US20100264381A1 (en) * 2005-09-29 2010-10-21 Massachusetts Institute Of Technology Oxides having high energy densities
CN104919631A (zh) * 2012-12-14 2015-09-16 尤米科尔公司 涂覆有内芯材料元素与一种或多种金属氧化物的混合物的锂金属氧化物颗粒
CN106104869A (zh) * 2014-03-11 2016-11-09 三洋电机株式会社 非水电解质二次电池用正极活性物质以及非水电解质二次电池用正极
WO2016098553A1 (ja) * 2014-12-17 2016-06-23 日立化成株式会社 リチウムイオン二次電池
CN105449197A (zh) * 2015-12-28 2016-03-30 中信国安盟固利电源技术有限公司 一种锂离子电池正极材料及其制备方法
CN106848224A (zh) * 2017-01-20 2017-06-13 中国科学院物理研究所 锂离子电池阳离子无序富锂正极材料及其制备方法和应用

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116053407A (zh) * 2023-03-31 2023-05-02 宁德新能源科技有限公司 二次电池及电子装置

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CN115066768B (zh) 2023-09-01
WO2021184247A1 (zh) 2021-09-23
CN116864670A (zh) 2023-10-10
EP4123752A1 (en) 2023-01-25
EP4123752A4 (en) 2023-04-19
US20230110649A1 (en) 2023-04-13

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