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Positive electrode material of lithium-ion battery and preparation method therefor

專利號
US11996560B1
公開日期
2024-05-28
申請人
Beijing Easpring Material Technology Co., Ltd.（CN Beijing）
發(fā)明人
Junfan Tong; Yanbin Chen; Yuqiang Jin; Wenbo Wang; Xuequan Zhang; Yafei Liu
IPC分類
H01M4/00; C01G53/00; H01M4/131; H01M4/505; H01M4/525; H01M10/0525
技術領域
calcining,electrode,positive,manganese,cobalt,dopant,material,nickel,lithium,in
地域： Beijing

摘要

The present disclosure relates to a positive electrode material for a lithium ion battery and its preparation. The positive electrode material in accordance with the present disclosure has an intrinsic specific surface area of 5-13 m2/g. The positive electrode material in accordance with the present disclosure has an intrinsic specific surface area and an intrinsic pore size within the required ranges. In this regard, the positive electrode material in accordance with the present disclosure has excellent particle strength, excellent Li ion transference ability, and good resistance to electrolyte erosion. When used in lithium batteries, it may impart the batteries with excellent rate performance and cycle performance. The present disclosure also relates to a method for preparing the positive electrode material.

說明書

0.99:0.005: 0.99:0.006: 0.99:0.006: 0.002:0.002 0.003:0.002 0.004:0.001 0.002:0.002 0.002:0.002 temperature for 300° C. 300° C. 300° C. 300° C. 300° C. the first calcining time for the first ?2 h ?2 h ?2 h ?2 h ?2 h calcining flow rate of 1.33 m3/kg · h 1.08 m3/kg · h 1.33 m3/kg · h 1.33 m3/kg · h 1.33 m3/kg · h oxygen, Q the second 870° C. 870° C. 870° C. 800° C. 870° C. calcining temperature T time for the 12 h 14 h 12 h 12 h 15 h second calcining the preparation coating agent boric acid/

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