Ningde Amperex Technology Limited

Xin Jiang

Molin Zhou

Leimin Xu

Feng Gu

A positive electrode plate includes a positive electrode current collector and a positive electrode active material layer disposed on at least one surface of the positive electrode current collector, where the positive electrode active material layer includes a first positive electrode active material represented by chemical formula (1) and a second positive electrode active material represented by chemical formula (2): LiAFeMnTiPOS(1), and LiNaMO(2); and the positive electrode plate satisfies: 5.2≤R/Q≤13.5. Such a positive electrode plate can achieve a high specific discharge capacity of the electrochemical apparatus, thereby increasing energy density of the electrochemical apparatus. In addition, a relationship between compacted density R and single surface density Q of the positive electrode plate is limited, effectively improving cycling stability and rate performance of the electrochemical apparatus.

Positive electrode plate, and electrochemical apparatus and electronic apparatus containing such positive electrode plate

A solid electrolyte material having a general chemical formula of LiMM'S, where M is at least one of Al, Ga or In, M′ is at least one of Si or Ge, and 0<x≤0.5. The solid electrolyte material according to the application is simple in composition, contains no phosphorus sensitive to water, and has good Li+ conductivity at the same time.

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Ningde, China

Xin Jiang