High-energy accumlator with nano active carbone fibres (CNT) electrode

A nano-carbon fiber and battery technology, applied in the direction of active material electrodes, lead-acid batteries, lead-acid battery electrodes, etc., can solve the problems of reducing payload and effective energy consumption, and achieve shortened charging time, reduced weight, and high specific energy Effect
CN1369925AInactive Publication Date: 2002-09-18牛锑贀

Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Applications(China)
Current Assignee / Owner
牛锑贀
Publication Date
2002-09-18
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a high-energy accumulator of active nano carbon fiber belonging to technique of accumulator. It is composed of battery jar, capping, electrolyte, positive and negative polar plates, diaphragm and positve and negative electrodes. The positive polar plate consists of grating of aluminium plate and layer of active nano carbon fiber. The negative polar plate consists of grating of copper plate and layer of active nano carbon fiber. Diameter of the carbon fiber is 20-300nm. Spacing intervals of each group of positive, negative polar plates and diaphragm are small so as to provide large capacity. It is Equivalent to parallel connectino between the large capacity and accumulator. The diaphragm is prepared by use of macromolecular non-woven fabric with high dielectric strength.
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Description

technical field

[0001] The invention belongs to the technical field of electrochemical accumulators, and more specifically relates to a high-energy accumulator with activated carbon nanofiber (CNT) electrodes. Background technique

[0002] Since Plante invented the lead-acid battery in 1860, people have mainly developed and researched in the electrochemical range, made uninterrupted efforts, and made continuous progress in technology.

[0003] However, the existing accumulator still has many defects and deficiencies. One of them is that the charging time is too long, which seriously limits the practical application of the storage battery. In the past, because of the small specific surface area of ​​the plates, only chemical methods can be used for long-term charging, and high current charging and discharging cannot be used. Otherwise, when charging with a large current, the plate will easily generate Joule heat and be used to decompose water, re...

Claims

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