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Powder mixture for water activated battery

A powder mixture, water-activated technology, applied in the field of battery manufacturing materials, can solve the problems of low energy density of water-activated batteries, affecting the storage time and use effect of water-activated batteries, and short storage time, so as to achieve easy recycling and reduce leakage. and failure rate, the effect of improving the shelf life

Inactive Publication Date: 2018-05-25
深圳市水动力环保新能源有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the traditional production process of water-activated battery powder, the storage time of water-activated battery powder will be short if it is not treated with special drying conditions, and the energy density of water-activated battery will be low if the water-activated battery powder is not subjected to fine grinding conditions. Affects the storage time and usage effect of water-activated batteries

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A powder mixture for water-activated batteries, which is composed of the following raw materials: 68 parts of manganese dioxide, 15 parts of acetylene black, 15 parts of zinc chloride, 1 part of barium sulfate, and 1 part of CMC;

[0022] After mixing the above-mentioned raw materials according to the ratio, put them into a ball mill under the conditions of ambient temperature 21°C and relative humidity 10% RH, and use zirconia balls to grind for 1 hour, and then sieve through a 20-mesh sieve to obtain particle powder. 4.5um, powder humidity is 2.6%;

[0023] Fill the powder into a plastic case, and make a 50-14 model battery by adding zinc flakes and separator paper. There is no voltage and current after the hydroelectric test. Water was added to the powder for testing, and the voltage was 1.7V, the short-circuit current was 3.2A, and the battery capacity was 1050mAh when tested to 0.8V.

[0024] In this embodiment, the battery is activated by adding water after bein...

Embodiment 2

[0026] A powder mixture for a water-activated battery, consisting of the following raw materials: 75 parts of manganese dioxide, 8 parts of acetylene black, 15 parts of zinc chloride, 1 part of barium sulfate, and 1 part of CMC;

[0027] After mixing the above raw materials according to the ratio, put them into a ball mill under the conditions of ambient temperature 21°C and relative humidity 10% RH, and use zirconia balls to grind for 2 hours, and then sieve through a 30-mesh sieve to obtain particle powder. 4.8um, powder humidity is 2.4%;

[0028] Fill the powder into a plastic case, and make a 50-14 model battery by adding zinc flakes and separator paper. There is no voltage and current after the hydroelectric test. Water was added to the powder for testing, and the voltage was 1.7V, the short-circuit current was 2.5A, and the battery capacity was 15mA to 0.8V, and the capacity was 1050mAh.

[0029] In this embodiment, the battery is placed in a constant state for one yea...

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Abstract

The invention discloses a powder mixture for a water activated battery. The powder mixture for the water activated battery is prepared from the following raw materials in parts by mass: 60 to 75 partsof manganese dioxide, 5 to 15 parts of acetylene black, 10 to 20 parts of zinc chloride, 1 to 5 parts of barium sulfate, and 1 to 5 parts of CMC. The powder mixture for the water activated battery has the beneficial effects that (1) an electrode material of the water activated battery manufactured by the invention can be beneficial to improving the storage life of the water activated battery, andreducing the occurrence rate of the phenomena of liquid leakage and failure caused by self-loss of the battery; (2) meanwhile, the powder mixture is convenient to produce and manufacture without generating pollutants, and easy to recycle; (3) a power supply performance is stable.

Description

technical field [0001] The invention belongs to the field of battery manufacturing materials, in particular to a powder mixture for water-activated batteries. Background technique [0002] At present, the effective service life of ordinary batteries on the market is 3-5 years, and there is battery leakage during the application of ordinary ordinary batteries, so the service life is shorter. However, the water-activated batteries on the market have low capacity and poor quality. For example, the capacity of 50-14 is only 400mAh, and it is prone to liquid leakage during use. The emergency energy packs on the market today require direct current for charging, and regular maintenance is required to ensure use in emergency situations. [0003] In the traditional production process of water-activated battery powder, the storage time of water-activated battery powder will be short if it is not treated with special drying conditions, and the energy density of water-activated battery...

Claims

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Application Information

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IPC IPC(8): H01M6/32
CPCH01M6/32
Inventor 王云
Owner 深圳市水动力环保新能源有限公司
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