ELECTROCHEMICAL DEVICE AND ELECTRONIC DEVICE
Dossier Overview
Applicant
Ningde Amperex Technology Limited
Inventor
Junfei LIU; Shaoyun ZHOU
IPC Classification
CPC Classification
An electrochemical device includes a negative electrode and an electrolyte, where the negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector. The negative electrode current collector contains chromium, wherein based on a mass of the negative electrode current collector, a mass percentage of chromium is from 0.001% to 0.5%. The electrolyte includes an oxalate-based compound, where based on a mass of the electrolyte, a mass percentage of the oxalate-based compound is from 0.01% to 5%; and the oxalate-based compound includes at least one of a compound of formula I, a compound of formula II, a compound of formula III, a compound of formula IV, or a compound of formula V.
Original (Chinese)
An electrochemical device includes a negative electrode and an electrolyte, where the negative electrode includes a negative electrode current collector and a negative electrode active material layer disposed on at least one surface of the negative electrode current collector. The negative electrode current collector contains chromium, wherein based on a mass of the negative electrode current collector, a mass percentage of chromium is from 0.001% to 0.5%. The electrolyte includes an oxalate-based compound, where based on a mass of the electrolyte, a mass percentage of the oxalate-based compound is from 0.01% to 5%; and the oxalate-based compound includes at least one of a compound of formula I, a compound of formula II, a compound of formula III, a compound of formula IV, or a compound of formula V.
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