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Electrolyte solution composition and energy storage device including the same

An electrolytic solution and energy storage technology, which is applied in hybrid capacitor electrolytes, electrolytic capacitors, liquid electrolytic capacitors, etc., can solve the problems of reduced output characteristics and increased capacitance resistance

Inactive Publication Date: 2012-03-21
SAMSUNG ELECTRO MECHANICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, when an electrolytic solution that has been used in a secondary battery according to a related art is used, actually, in a lithium ion capacitor, the capacitance rapidly decreases and the resistance rapidly increases at low temperature, so that the output Reduced characteristics

Method used

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  • Electrolyte solution composition and energy storage device including the same
  • Electrolyte solution composition and energy storage device including the same

Examples

Experimental program
Comparison scheme
Effect test

experiment Embodiment 1

[0030] In order to analyze the characteristics of the electrolyte solution composition, a 2000m 2 Activated carbon with a specific surface area of ​​ / g is coated on the current collector with a thickness of 60 μm to be used as a positive electrode, while it will have a thickness of 10m 2 Hard carbon (hard carbon, hard black, hard carbon) of specific surface area per g was coated on the current collector in a thickness of 25 μm to be used as a negative electrode.

[0031] Furthermore, according to the present invention (Example 1), in the composition of the electrolyte solution, 1.0 to 1.5 mol / L of LiPF 6 As a solute, a material having the following composition ratio: EC:PC:MP=3±0.05:1±0.02:4±0.05 was used as a solvent.

[0032] In order to compare with the characteristics of the electrolyte solution according to the embodiment of the present invention, a control group was prepared and then tested, in which 1.2 mol / L of LiPF was used 6 As a solute, a material containing the f...

experiment Embodiment 2

[0042]In Experimental Example 2, using a mixture of EC, PC, and MP having different composition ratios as a solvent of an electrolytic solution, under the same conditions as Experimental Example 1, capacitance and resistance characteristics according to temperature were compared.

Embodiment 1

[0043] (Example 1) EC:PC:MP=3:1:4

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Abstract

Disclosed herein are an electrolyte solution composition and an energy storage device including the same. The electrolyte solution composition contains: a lithium salt including lithium ions; and a solvent made of a material selected from a group consisting of at least one cyclic carbonate compound and propionate compound. The electrolyte solution composition may balancedly maintain characteristics at a room temperature and a low temperature and be used for pre-doping lithium ions, thereby making it possible to improve pre-doping efficiency.

Description

[0001] References to related applications [0002] This application claims a patent application entitled "Electrolyte Solution Composition and Energy Storage Device Including the Same" filed September 6, 2010 and August 9, 2011 under 35 U.S.C. Section 119 device)” in Korean Patent Application Serial Nos. 10-2010-0087118 and 10-2011-0079166, which are hereby incorporated by reference in their entirety into this application. technical field [0003] The present invention relates to an electrolyte solution composition and an energy storage device comprising the same, more particularly, to an electrolyte solution composition capable of improving the capacity and life of the energy storage device and reducing resistance, and comprising the electrolyte Energy storage devices of solution compositions. Background technique [0004] Stable energy supply has become an important factor in various electronic products such as communication equipment. Typically, this function is perform...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/145H01G9/035
CPCH01G11/58Y02E60/13H01G11/62
Inventor 李相均金倍均赵智星
Owner SAMSUNG ELECTRO MECHANICS CO LTD
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