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Electrolytic solution, electrochemical device comprising the electrolytic solution and electronic device

A technology of electrolyte and compound, applied in the field of energy storage, to achieve the effect of improving high temperature cycle

Pending Publication Date: 2021-12-17
NINGDE AMPEREX TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present application aims to provide an electrolyte and an electrochemical device containing the electrolyte to solve the cycle and high-temperature storage problems of high-voltage lithium-ion batteries

Method used

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  • Electrolytic solution, electrochemical device comprising the electrolytic solution and electronic device
  • Electrolytic solution, electrochemical device comprising the electrolytic solution and electronic device
  • Electrolytic solution, electrochemical device comprising the electrolytic solution and electronic device

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Embodiment Construction

[0049] The present application will be further elaborated below in combination with specific embodiments. It should be understood that these specific embodiments are only used to illustrate the present application and not to limit the scope of the present application.

[0050] For the sake of brevity, only certain numerical ranges are specifically disclosed herein. However, any lower limit can be combined with any upper limit to form an unexpressed range; and any lower limit can be combined with any other lower limit to form an unexpressed range, just as any upper limit can be combined with any other upper limit to form an unexpressed range. Furthermore, each individually disclosed point or individual value may serve as a lower or upper limit by itself in combination with any other point or individual value or with other lower or upper limits to form an unexpressly recited range.

[0051] In the description herein, unless otherwise specified, "above" and "below" include the n...

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Abstract

Disclosed are an electrolytic solution, an electrochemical device comprising the electrolytic solution and an electronic device. The electrolyte includes a compound of formula I, In formula I, R1, R2 and R3 are each independently selected from hydrogen, halogen, substituted or unsubstituted alkyl, substituted or unsubstituted alkenyl, substituted or unsubstituted alkynyl and substituted or unsubstituted heteroatom-containing group; wherein, when substituted, the substituent is selected from halogen; The heteroatom includes at least one of O, S, P, N, Si and B; at least one of R1, R2 and R3 has an unsaturated functional group. The electrolyte of the present application can improve high-temperature cycling and high-temperature storage performance of high-voltage batteries.

Description

technical field [0001] The present application relates to the technical field of energy storage, and in particular to an electrolyte and an electrochemical device and an electronic device containing the electrolyte. Background technique [0002] Lithium-ion batteries have become the main unit of 3C portable electronic devices because of their advantages such as high energy density, long cycle life, low self-discharge rate, no memory effect, stable discharge voltage, fast charge and discharge, and environmental protection. However, with the development of society, the requirements for lithium-ion batteries are getting higher and higher, such as high energy density and fast charging, which have become the main research directions of many scientific research institutions and battery companies. [0003] Because the power and energy that a lithium battery can provide is directly proportional to the working voltage, in order to solve the above problems, increasing the voltage of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/0567H01M10/0525H01M10/42
CPCH01M10/0525H01M10/0567H01M10/4235H01M2300/0025Y02E60/10
Inventor 熊亚丽唐超栗文强王荣
Owner NINGDE AMPEREX TECH
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