Porous ceramic fiber diaphragm material for thermal battery and preparation method of porous ceramic fiber diaphragm material

A diaphragm material and ceramic fiber technology, which is applied in the field of porous ceramic fiber diaphragm materials for thermal batteries and its preparation, can solve the problems of low local strength, leakage of molten electrolyte, poor uniformity of ceramic diaphragm materials, etc., and achieve good discharge performance and guarantee The effect of safety performance
CN113644379APending Publication Date: 2021-11-12SOUTH CHINA UNIV OF TECH +1
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
SOUTH CHINA UNIV OF TECH
Publication Date
2021-11-12

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Abstract

The invention relates to a porous ceramic fiber diaphragm material for a thermal battery and a preparation method thereof. The diaphragm material is composed of ceramic fibers and an inorganic binder. The diaphragm material can be widely applied to high-power output high-voltage thermal batteries and large-pulse thermal batteries, and the two types of thermal batteries can be used as main power supplies of weapons such as torpedoes, submarine-launched nuclear warships, hypersonic cruise missiles, hypersonic aircrafts and near space aircrafts.
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Description

technical field

[0001] The invention belongs to the technical field of thermal battery diaphragm materials, and in particular relates to a porous ceramic fiber diaphragm material for thermal batteries and a preparation method thereof. Background technique

[0002] Thermal battery, also known as heat-activated battery, mainly uses solid molten salt as electrolyte, and relies on electrical activation or mechanical activation to ignite the internal heat source. After activation, the heating system of the battery reaches the working temperature (the working temperature is between 350°C and 550°C ), at this time, the solid molten salt electrolyte changes from a solid state to a liquid state, so that the positive and negative electrodes react with the electrolyte to generate a kind of reserve battery, because the thermal battery has a fast activation speed, high instantaneous output power, no maintenance, and is not subject to The outstanding advantages of limited installation ori...

Claims

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