Electrolyte solution and battery

An electrolyte and electrolyte technology, applied in secondary batteries, circuits, electrical components, etc., can solve problems such as poor high-temperature storage performance and attenuation of secondary battery charge and discharge performance, and achieve the effect of improving low-temperature discharge capacity and high-temperature storage performance

Inactive Publication Date: 2019-02-05
CONTEMPORARY AMPEREX TECH CO
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  • Abstract
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Problems solved by technology

[0003] At present, the electrolytes widely used in lithium-ion secondary batteries include those with lithium hexafluorophosphate as the electrolyte salt and a mixture of cyclic carbonates and chain carbonates as organic solvents.

Method used

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  • Electrolyte solution and battery
  • Electrolyte solution and battery
  • Electrolyte solution and battery

Examples

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Embodiment Construction

[0023] In order to make the purpose of the invention, the technical solution and the beneficial technical effect of the present application clearer, the present application will be further described in detail below in conjunction with the examples. It should be understood that the examples described in this specification are only for explaining the present application, not for limiting the present application, and the formulations and ratios of the examples can be selected according to local conditions without substantial influence on the results.

[0024] The electrolyte and the battery according to the embodiments of the present application will be described in detail below.

[0025] Firstly, the electrolyte solution according to the first aspect of the embodiment of the present application will be described.

[0026] In order to achieve the purpose of the above invention, the first aspect of the embodiments of the present application provides an electrolyte solution, includ...

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Abstract

The invention relates to the field of energy storage materials, in particular to an electrolyte solution and a battery applying the electrolyte solution. The electrolyte solution is prepared from thefollowings: an electrolyte, an organic solvent and an additional agent, the organic solvent contains sec-butyl methyl carbonate, and thus the discharge capability of the battery at the low temperatureand the storage performance of the battery at the high temperature can be improved. In the optimized technical scheme, at least one of compounds including S=O groups can be further added into the electrolyte solution, the compounds including the S=O groups as the additional agent cooperates with the sec-butyl methyl carbonate, and thus the low-temperature circulating performance of the battery can be further improved.

Description

technical field [0001] This application relates to the field of energy storage materials, in particular, to an electrolyte and a battery. Background technique [0002] In the rapidly developing information age, the demand for mobile phones, notebooks, cameras and other electronic products is increasing year by year. As the working power source of electronic products, secondary batteries, especially lithium-ion secondary batteries, have the characteristics of high energy density, no memory effect, and high working voltage, and are gradually replacing traditional Ni-Cd and MH-Ni batteries. However, with the expansion of market demand for electronic products and the development of power and energy storage equipment, people's requirements for secondary batteries continue to increase, and the development of secondary batteries with high energy density and fast charging and discharging has become a top priority. At present, the effective methods are to increase the voltage and co...

Claims

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Application Information

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IPC IPC(8): H01M10/0569H01M10/0567H01M10/0525
CPCH01M10/0525H01M10/0567H01M10/0569Y02E60/10
Inventor 湛英杰史松君王小梅张昌明刘文浩付成华
Owner CONTEMPORARY AMPEREX TECH CO
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