CN116097468A - 正极材料、正极极片、锂二次电池、电池模块、电池包及装置 - Google Patents

正极材料、正极极片、锂二次电池、电池模块、电池包及装置 Download PDF

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CN116097468A
CN116097468A CN202080104510.7A CN202080104510A CN116097468A CN 116097468 A CN116097468 A CN 116097468A CN 202080104510 A CN202080104510 A CN 202080104510A CN 116097468 A CN116097468 A CN 116097468A
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positive electrode
active material
electrode active
battery
iron phosphate
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CN116097468A8 (zh
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别常峰
刘宏宇
柳娜
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H—ELECTRICITY
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    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
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    • H—ELECTRICITY
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    • H01M10/052—Li-accumulators
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    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
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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
    • H01M4/485—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of mixed oxides or hydroxides for inserting or intercalating light metals, e.g. LiTi2O4 or LiTi2OxFy
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    • 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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    • 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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    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
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Abstract

本申请涉及一种正极材料、正极极片、锂二次电池、电池模块、电池包及装置。本申请所涉及的正极材料包含磷酸铁锂单晶颗粒和磷酸铁锂二次颗粒。其中，磷酸铁锂二次颗粒具有低比表面积，可减少制浆过程中对粘结剂和溶剂的消耗、提升浆料固含量，提升厚涂布极片的加工性能。同时，磷酸铁锂单晶充分填充到磷酸铁锂二次颗粒的颗粒间隙中，可进一步提升极片的压实密度，同时降低正极极片的膜片电阻，从而提高锂二次电池的克容量发挥和循环性能。

Description

PCT国内申请，说明书已公开。

Claims (14)

  1. PCT国内申请，权利要求书已公开。
CN202080104510.7A 2020-09-03 2020-09-03 正极材料、正极极片、锂二次电池、电池模块、电池包及装置 Pending CN116097468A (zh)

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PCT/CN2020/113286 WO2022047705A1 (zh) 2020-09-03 2020-09-03 正极材料、正极极片、锂二次电池、电池模块、电池包及装置

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CN116097468A true CN116097468A (zh) 2023-05-09
CN116097468A8 CN116097468A8 (zh) 2024-05-24

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US (1) US20230108289A1 (zh)
EP (1) EP4170755A4 (zh)
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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4318672A4 (en) * 2022-04-27 2024-09-04 Contemporary Amperex Technology Co Ltd LITHIUM-IRON-PHOSPHATE POSITIVE ELECTRODE PLATE AND SECONDARY BATTERY, BATTERY MODULE, BATTERY PACK AND ELECTRICAL DEVICE THEREFOR
CN115832183A (zh) * 2022-05-05 2023-03-21 宁德时代新能源科技股份有限公司 正极极片及其制备方法、二次电池、电池模块、电池包及用电装置
CN115472898B (zh) * 2022-10-27 2023-09-15 欣旺达动力科技股份有限公司 一种二次电池及用电设备
KR20240088617A (ko) * 2022-12-13 2024-06-20 주식회사 엘지화학 양극 및 이를 포함하는 리튬 이차전지
CN117355974A (zh) * 2023-02-23 2024-01-05 宁德时代新能源科技股份有限公司 二次电池及包含其的用电装置
CN115986056B (zh) * 2023-03-17 2023-06-13 宁德新能源科技有限公司 二次电池及电子装置
CN117727914B (zh) * 2024-02-07 2024-05-14 晶科储能科技有限公司 正极材料及其制备方法、二次电池

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JP2008159495A (ja) * 2006-12-26 2008-07-10 Hitachi Maxell Ltd リチウムイオン二次電池用正極活物質およびその製造方法
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CN111384372A (zh) * 2018-12-29 2020-07-07 宁德时代新能源科技股份有限公司 一种高压实密度正极材料及电化学储能装置

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ATE556447T1 (de) * 2006-12-26 2012-05-15 Santoku Corp Positivelektroden-aktivmaterial für eine sekundärbatterie mit wasserfreiem elektrolyt, positivelektrode und sekundärbatterie
CN102306791B (zh) * 2011-08-18 2014-08-06 合肥国轩高科动力能源股份公司 一种碳包覆非化学计量比氧化锂铁磷材料的制备方法
CN104505493B (zh) * 2014-12-05 2017-01-04 东莞新能源科技有限公司 一种锂离子电池正极材料的制备方法及应用
JP2018049775A (ja) * 2016-09-23 2018-03-29 トヨタ自動車株式会社 非水電解質二次電池
CN109301179A (zh) * 2018-08-22 2019-02-01 江苏元景锂粉工业有限公司 一种锂电池用磷酸铁锂正极材料及其制备方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008159495A (ja) * 2006-12-26 2008-07-10 Hitachi Maxell Ltd リチウムイオン二次電池用正極活物質およびその製造方法
CN105185982A (zh) * 2015-08-31 2015-12-23 宁波金和锂电材料有限公司 一种正极材料及其制备方法和锂离子电池
CN109309227A (zh) * 2017-07-26 2019-02-05 宁德时代新能源科技股份有限公司 锂离子电池及其正极活性材料
CN111384372A (zh) * 2018-12-29 2020-07-07 宁德时代新能源科技股份有限公司 一种高压实密度正极材料及电化学储能装置

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US20230108289A1 (en) 2023-04-06
WO2022047705A1 (zh) 2022-03-10
EP4170755A1 (en) 2023-04-26
EP4170755A4 (en) 2023-08-16
CN116097468A8 (zh) 2024-05-24

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Correction item: PCT international application to national stage day

Correct: 2023.01.30

False: 2023.01.29

Number: 19-01

Page: The title page

Volume: 39

Correction item: PCT international application to national stage day

Correct: 2023.01.30

False: 2023.01.29

Number: 19-01

Volume: 39