NEGATIVE ELECTRODE PLATE, ELECTROCHEMICAL DEVICE, ELECTRONIC DEVICE, AND PREPARATION METHOD FOR NEGATIVE ELECTRODE PLATE

This application provides a negative electrode plate, an electrochemical apparatus, an electronic apparatus, and a preparation method of negative electrode plate. The negative electrode plate includes a current collector and a negative electrode active substance layer disposed on the current collect...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	LI, Jiawen, DU, Changchao
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRICITY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
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Beschreibung
Zusammenfassung:	This application provides a negative electrode plate, an electrochemical apparatus, an electronic apparatus, and a preparation method of negative electrode plate. The negative electrode plate includes a current collector and a negative electrode active substance layer disposed on the current collector, where the negative electrode active substance layer includes lithium carboxymethyl cellulose, and porosity of the negative electrode plate is greater than or equal to 33%. In this application, the negative electrode active substance layer includes lithium carboxymethyl cellulose, and the porosity of the negative electrode plate is greater than or equal to 33% so that the porosity of the negative electrode plate can be improved without affecting the compacted density of the negative electrode plate, thereby increasing electrolyte retention of the electrochemical apparatus and improving cycling performance of the electrochemical apparatus.