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Nanoporous electrolyte materials with high proton conductivity for low temperature solid fuel cells

A solid fuel cell and electrolyte material technology, applied in fuel cells, circuits, electrical components, etc., can solve problems such as low power generation efficiency and poor proton conductivity

Inactive Publication Date: 2019-12-03
HENAN UNIV OF URBAN CONSTR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention mainly solves the technical problems of poor proton conductivity and low power generation efficiency of electrolyte materials used in existing low-temperature solid fuel cells, and provides a nanoporous electrolyte material with high proton conductivity for low-temperature solid fuel cells and a preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: a kind of electrolyte material that is used for fuel cell, by 100 parts by weight, making component comprises: hydrochloric acid 35 parts, ethanol 40 parts, organosilane Si(OR) 4 20 parts, 2 parts of phosphate ester, 0.2 parts of anionic surfactant, 2.8 parts of dryness control agent. Wherein the organosilane Si(OR) 4 One or both of methyl orthosilicate and ethyl orthosilicate; the phosphoric acid ester is one or both of trimethyl phosphate and triethyl phosphate; the anionic surfactant is CTAB, the drying control agent is formamide.

[0015] The above-mentioned electrolyte material for fuel cell, its preparation method comprises the following steps: step (1), hydrochloric acid is configured into the hydrochloric acid aqueous solution of 0.15mol / L with pure water, adds ethanol and mixes evenly, makes mixed liquid A; Step ( 2), take 1 / 6-1 / 3 of the mixed liquid A, the organosilane Si(OR) 4 Drop into it at a rate of 5-6 seconds per drop, stir for 1 hour t...

Embodiment 2

[0017] Embodiment 2: a kind of electrolyte material that is used for fuel cell, by 100 weight parts, making component comprises: formic acid 40 parts, ethanol 30 parts, organosilane Si(OR) 4 27 parts, phosphoric acid 1.5 parts, anionic surfactant 0.3 parts, dryness control agent 1.2 parts. Wherein the organosilane Si(OR) 4 It is optional one or both of methyl orthosilicate and ethyl orthosilicate; the anionic surfactant is CTAB, and the drying control agent is formamide.

[0018] Above-mentioned electrolyte material for fuel cell, its preparation method comprises the following steps: step (1), formic acid is configured into the formic acid aqueous solution of 0.15mol / L with pure water, adds ethanol and mixes evenly, makes mixed liquid A; Step ( 2), take 1 / 6-1 / 3 of the mixed liquid A, the organosilane Si(OR) 4 Drop it into it at a rate of 5-6 seconds per drop, stir for 1 hour to prepare mixed solution B; step (3), add phosphoric acid to mixed solution B, and stir for 1 hour ...

Embodiment 3

[0020] Embodiment 3: a kind of electrolyte material that is used for fuel cell, by 100 parts by weight, making component comprises: 30 parts of acetic acid, 35 parts of ethanol, organosilane Si(OR) 4 30 parts, 1.8 parts of phosphorus oxychloride, 0.3 parts of anionic surfactant, 2.9 parts of dryness control agent. Wherein the organosilane Si(OR) 4 It is optional one or both of methyl orthosilicate and ethyl orthosilicate; the anionic surfactant is CTAB, and the drying control agent is formamide.

[0021] Above-mentioned electrolyte material that is used for fuel cell, its preparation method comprises the following steps: step (1), acetic acid is configured into the acetic acid aqueous solution of 0.15mol / L with pure water, adds ethanol and mixes evenly, makes mixed liquid A; Step ( 2), take 1 / 6-1 / 3 of the mixed liquid A, the organosilane Si(OR) 4 Drop it into it at a rate of 5-6 seconds per drop, stir for 1h to prepare mixed solution B; step (3), add phosphorus oxychloride ...

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Abstract

A high-proton-conductivity nano-porous electrolyte material for a low-temperature solid fuel battery is prepared from hydrochloric acid or formic acid or acetic acid, ethanol, organosilane Si(OR)4, phosphate ester or phosphoric acid or phosphorus oxychloride, an anionic surfactant and a drying control agent. Through test measurement, in the electrolyte material for the fuel battery, the fine holediameter can be up to below 10 nm, the surface area can be up to above 800 m<2> / g, the void ratio can be up to above 50 percent, the proton conductivity is high, and the electric conductivity can be up to above 5*10<-1> S / cm<2>, so the high-proton-conductivity nano-porous electrolyte material for the low-temperature solid fuel battery has the characteristics of high proton adsorbility, high electric conductivity, wider temperature use range and the like, and can be widely applied to the low-temperature solid fuel battery.

Description

technical field [0001] The invention belongs to the technical field of low-temperature solid fuel cells, and in particular relates to a nanoporous electrolyte material with high proton conductivity for low-temperature solid fuel cells. Background technique [0002] Low-temperature solid fuel cell is a new type of high-efficiency and clean electrochemical energy. It has the advantages of high power generation efficiency and less environmental pollution. It is the preferred energy source for motor vehicles. The electrolyte material used in the current low-temperature solid fuel cells is a polymer material, but the stability of the polymer material is poor (the operating temperature cannot exceed 100 ° C), and the proton conductivity in the fuel cell is poor, which seriously restricts the low-temperature solid fuel. The further improvement of battery power generation efficiency has affected the further expansion of its application range. Contents of the invention [0003] Th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M8/1018H01M8/1067
CPCY02E60/50Y02P70/50
Inventor 张小婷马先伟汪潇杨欢徐开东牛季收杨留栓张骁朱文豪王宇
Owner HENAN UNIV OF URBAN CONSTR