Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology Limited

Wenguang Lin

Yongsheng Guo

Chengdu Liang

Qian Liu

Chuying Ouyang

Jinhua He

Jiarui Tian

Xinxin Zhang

Jixiang Wang

Jiadian Lan

Yuejuan Wan

Liting Huang

Yuhao Wang

Gang Wang

A positive electrode active material is granular and comprises a compound represented by formula 1: (NaxAy)a□bM1[M2(CN)], wherein A is selected from at least one of alkali metal elements and has an ionic radius greater than that of sodium, M1 and M2 are each independently selected from at least one of transition metal elements, 0<y≤0.2, 0<x+y≤2, 0≤δ≤1, a+b=2, 0.85≤a≤0.98, □ represents a vacancy, and b represents the number of vacancies; and when the positive electrode active material is dissolved, at a temperature of 20° C., into an aqueous solution having a concentration of 5 g/100 g water, a pH value of the aqueous solution is in a range of 7.6 to 8.5. The positive electrode active material has good cycling and rate performance, and a high specific capacity.

Positive electrode active material, sodium ion secondary battery comprising same and power consuming device

The present application discloses a positive electrode active material and its preparation method, a sodium ion battery and an apparatus containing the sodium ion battery. The positive electrode active material satisfies a chemical formula NaCuMnMO, wherein M is one or more selected from Li, B, Mg, Al, K, Ca, Ti, V, Cr, Fe, Co, Ni, Zn, Ga, Sr, Y, Nb, Mo, Sn, Ba and W, 0≤x≤0.5, 0.1<h≤2, 1≤k≤3, 0≤l≤0.5, and 0≤y≤1, 2≤h+k+l≤3.5, and 0.57≤(2+x)/(h+k+l)≤0.9.

Positive electrode active material and its preparation method, sodium ion battery and apparatus containing the sodium ion battery

The present application provides a positive electrode active material which may be in a particulate form and comprise a compound represented by Formula 1:NaAM1[M2(CN)]HO  Formula 1

Positive electrode active material, sodium-ion secondary battery comprising the same and electrical apparatus

A positive electrode active material and a preparation process thereof, a sodium ion battery () and an apparatus containing the sodium ion battery () are described, the positive electrode active material satisfying the chemical formula of NaMnABO, in which A is selected from one or more of Co, Ni and Cr, B is selected from one or more of Mg, Al, Ca, Ti, Cu, Zn and Ba, 0.6&#x3c;x&#x3c;1, 0&#x3c;y&#x3c;0.1, 0.6&#x3c;x+y&#x3c;0.8, z&#x3e;0, x+y+z=1, 0&#x2264;&#x3b4;&#x2264;0.1, and (I) 

Positive active material, preparation process thereof, sodium ion battery and apparatus containing the same

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Ningde, China

Wenguang Lin