Contemporary Amperex Technology (hong Kong) Limited

Contemporary Amperex Technology Co., Ltd.

Contemporary Amperex Technology Limited

Xinxin Zhang

Yongsheng Guo

Chuying Ouyang

Jiarui Tian

Na Liu

Cong Cheng

Jinhua He

Shuojian Su

Yuanyuan Lan

Wenguang Lin

Qiang Li

Yuejuan Wan

Jiadian Lan

Xiaoxia Chen

Yuhao Wang

Yu Ma

Zibin Liang

Xiaoji Zheng

Ben Liu

Jixiang Wang

A layered-oxide positive electrode active material may have a molecular formula of NaMnFeNiMNOQ, where a doping element M is selected from at least one of Cu, Li, Ti, Zr, K, Sb, Nb, Mg, Ca, Mo, Zn, Cr, W, Bi, Sn, Ge, or Al, a doping element N is selected from at least one of Si, P, B, S, or Se, a doping element Q is selected from at least one of F, Cl, or N, 0.66≤x≤1, 0<a≤0.70, 0<b≤0.70, 0<c≤0.23, 0≤d<0.30, 0≤e≤0.30, 0≤f≤0.30, 0≤δ≤0.30, a+b+c+d+e=1, 0<e+f≤0.30, 0<(e+f)/a≤0.30, 0.20≤d+e+f≤0.30, and (b+c)/a≤1.5.

Layered-oxide positive electrode active material and positive electrode plate, sodium-ion battery, and electric apparatus containing same

The present application provides an organic-inorganic hybrid complex which can be used in a coating of a separator for a secondary battery, wherein the organic-inorganic hybrid complex is formed from basic units represented by formula (I) being periodically assembled in at least one spatial direction: [L][MC].A(I), wherein a defect percentage expressed in i/x*100% is 1% to 30%. The present application further provides a coating composition comprising the organic-inorganic hybrid complex, a coating formed from the coating composition, a separator comprising the coating for a secondary battery, a secondary battery comprising the separator, a battery module, a battery pack and a device. By applying the organic-inorganic hybrid complex of the present application in a coating, the electrolyte infiltration of a separator for a secondary battery is improved while increasing the electrolyte retention rate, thereby improving the rate capability and cycling life of the secondary battery.

Organic-inorganic hybrid complex and coating composition comprising same, separator, secondary battery, battery module, battery pack and power consuming device

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 hard carbon. A total quantity of adsorbed nitrogen under a relative pressure P/Pof nitrogen between 10and 0.035 is Vcm(STP)/g and a total quantity of adsorbed nitrogen under a relative pressure P/Po of nitrogen between 0.035 and 1 is Vcm(STP)/g in a nitrogen adsorption isotherm determined at a temperature of 77 K for the hard carbon. The hard carbon satisfies: V/V≤0.20 and 20≤V≤150, where P represents an actual pressure of nitrogen, and Prepresents a saturated vapor pressure of nitrogen at a temperature of 77 K.

Hard carbon, method for preparing same, secondary battery comprising same, and electrical apparatus comprising same

An organic-inorganic hybrid porous material. The organic-inorganic hybrid porous material contains a doping element A are provided. In some embodiments, the element A is one or more selected from: Li, Na, K, Rb, Cs, Sr, Zn, Mg, Ca, or any combination thereof. An external specific surface area of the organic-inorganic hybrid porous material is 1 to 100 m/g. A ratio of the external specific surface area to a total specific surface area of the organic-inorganic hybrid porous material is 0.7 to 0.9.

Organic-inorganic hybrid porous material and preparation method thereof, separator, electrochemical device, and electrical device

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Ningde, China

Xinxin Zhang