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Composite electrolyte and its use

A composite electrolyte and substance technology, applied in the field of electrolyte materials, can solve problems such as poor contact and fast crystallization rate, and achieve the effects of stable performance, suitable melting point and high conductivity

Inactive Publication Date: 2004-07-14
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

Another disadvantage of this type of alcohol addition compound is that the crystallization rate is too fast, and the crystal grains formed in practical applications reach the order of hundreds of microns to millimeters, and the contact between such large grains and the contact between the electrolyte and the electrode are very difficult. Poor, is an important factor affecting the dielectric efficiency and battery efficiency

Method used

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Embodiment Construction

[0014] The general formula of the alcohols addition compound that alcohols of the present invention and halogenated polyalkali metal salt generate is M 1 x m 2 y m 3 n m 4 v N.(A) w , where M 1 , M 2 , M 3 , M 4 Respectively selected from one of the alkali metal elements Li, Na, K, Ru, Cs, where x, y, z, v are atomic parts, 0≤(x, y, z, v)≤1 and x+ y+z+v=1; N is selected from one of the halogen elements F, Cl, Br and I; A is alcohol or its derivatives, wherein w=1-4. Its embodiment sees embodiment 1 and 2 in table 1.

[0015] In order to improve the conductivity of the electrolyte, we have invented a composite electrolyte in which an alcohol addition compound formed from alcohols and polyalkali metal halides is doped with iodine. Its general formula is:

[0016] m 1 x m 2 y m 3 z m 4 v N.(A) w +aI 2

[0017] where M 1 , M 2 , M 3 , M 4 Respectively selected from one of the alkali metal elements Li, Na, K, Ru, Cs, where x, y, z, v are atomic parts, 0...

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Abstract

This invention relates to a complex electrolyte and its usage which is an alcohol addition compound electrolyte generated by alcohol and polybase metallic salt halide or added by at least one of elementary iodine, control agent for rate of crystallization or monad nantokite compound having high conductivity, non-volatility and suitable fusion point used in solar energy battery, Li ion battery and fuel battery.

Description

technical field [0001] The invention relates to an electrolyte material that can be used in solar cells, lithium ion batteries, fuel cells, etc. and its application, especially a composite electrolyte and its application. Background technique [0002] Electrolyte materials with high conductivity and stable performance can be used as electrolytes for various batteries and have broad application prospects. Common inorganic polycrystalline solid-state electrolytes or glass materials have low conductivity, while liquid electrolytes have electrolyte leakage and packaging technical problems. These factors limit the efficiency improvement of the battery. The search for high-conductivity solid-state electrolytes and non-volatile highly-conductive molten-salt electrolytes has aroused widespread interest. Fast ionic conductors and polymer ionic conductors have attracted great attention. In 1986, B.Schoch, E.Hartmann, and W.Weppner wrote in the Journal of Solid State Ionics (Solid St...

Claims

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Application Information

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IPC IPC(8): H01B1/00H01M6/14H01M8/1016H01M8/1041H01M10/0525H01M10/056
CPCY02E60/122Y02E60/50Y02E60/10
Inventor 孟庆波王红霞胡永胜薛勃飞黄学杰薛其坤陈立泉
Owner INST OF PHYSICS - CHINESE ACAD OF SCI
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