Electrolyte, electrochemical device, and electronic device
By adding compounds of formula I and formula II to the electrolyte, the problem of balancing high-temperature cycling and low-temperature discharge performance of the electrochemical device is solved, forming a passivation layer and a protective film, thereby improving the stability and performance of the electrochemical device.
CN119133603BActive Publication Date: 2025-12-09NINGDE AMPEREX TECHNOLOGY LTD
Patent Information
- Application Number
- CN202411214879.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2044-08-30
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Figure CN119133603B_ABST
Abstract
The application discloses an electrolyte, an electrochemical device and an electronic device. The electrolyte comprises a compound of formula I and a compound of formula II. The mass percentage A of the compound of formula I satisfies 0.01%<=A<=70% based on the mass of the electrolyte, and the mass percentage B of the compound of formula II satisfies 2.0%<=B<=20%. By comprising the compound of formula I and the compound of formula II in the electrolyte, the compound of formula I and the compound of formula II are within the scope of the application. The compound of formula I improves the low-temperature large-rate discharge capacity retention rate of the electrochemical device, and the compound of formula II can improve the stability of the positive and negative electrodes, thereby improving the high-temperature cycle capacity retention rate of the electrochemical device.
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Citation Information
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