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High-performance zinc-nickel storage battery

A zinc-nickel battery and battery technology, applied in nickel batteries, alkaline batteries, battery pack components, etc., can solve the problems of low operating voltage, high cost, short life, etc., and achieve growth inhibition, prevention of internal short circuit, and extended use. effect of life

Inactive Publication Date: 2012-02-08
刘建政
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Lead-acid batteries have the advantages of low price, but they have the disadvantages of bulkiness, short service life, and large pollution; lithium-ion batteries have the advantages of long service life, less pollution, and small size, but their biggest disadvantage is that they are expensive and difficult to manufacture. It is popularized and applied for power energy; nickel-separated batteries, iron-nickel batteries, nickel-metal hydride batteries, etc. are widely used in alkaline batteries. These batteries are either polluted or have low operating voltage, low energy density, and low cost High disadvantage
Zinc-nickel battery is a kind of alkaline storage battery. Although it has the advantages of high working voltage and no pollution, it has been neglected due to its short life and high cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] Embodiment 1 The making and using method of diaphragm and paint of this embodiment:

[0036] Use cotton paper as a diaphragm

[0037] (1) Put metal aluminum in NaOH solution to react to generate Na[Al(OH) 4 ],which is:

[0038] NaOH+Al+H 2 O→Na[Al(OH) 4 ]+H 2 ↑

[0039] (2) In the above Na[Al(OH) 4 ] in the solution, add Mg(OH) 2 react, generate

[0040] Mg[Al(OH) 4 ] 2 sediment, namely:

[0041] Mg(OH) 2 +Na[Al(OH)]→Mg[Al(OH) 4 ] 2 ↓+NaOH;

[0042] (3) Wash the precipitate to remove Na[Al(OH) 4 ], Na[Al(OH) 4 ] content ≤ 0.2%;

[0043] (4) Drying at 100°C; crushing and sieving, Mg[Al(OH) with a particle size of 800-1000 mesh 4 ] 2 .

[0044] The method of applying the paint on the diaphragm is:

[0045] a. In Mg[Al(OH) 4 ] 2 In the solution, add 4-5% starch by weight, then add 200-220ml of water, stir evenly, heat the solution to boiling, and then cool it down;

[0046]b. The above Mg[Al(OH) 4 ] 2 Apply evenly on the diaphragm 9 for multiple c...

Embodiment 2

[0049] Embodiment 2 The preparation method and steps of this embodiment are:

[0050] Nylon cloth is used as the diaphragm.

[0051] (1) Put metal aluminum in KOH solution to react to generate Ca[Al(OH) 4 ] 2 ,which is:

[0052] KOH+Al+H 2 O→K[Al(OH) 4 ]+H 2 ↑

[0053] (2) In the above K[Al(OH) 4 ] to the solution, add Ca(OH) 2 react to generate Ca[Al(OH) 4 ] 2 sediment, namely:

[0054] Ca(OH) 2 +K[Al(OH) 4 ]→Ca[Al(OH) 4 ] 2 ↓+KOH.

[0055] (3) Wash the precipitate to remove K[Al(OH) 4 ], its content ≤ 0.2%;

[0056] (4) Dry at 120°C; pulverize and sieve with a particle size of 800-1200 mesh to obtain pure Ca[Al(OH) 4 ] 2 ;

[0057] The method of coating the coating agent on the diaphragm in this embodiment is similar to that in Embodiment 1.

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Abstract

The invention relates to a high-performance zinc-nickel storage battery. Mg[Al(OH)4]2 or Ca[Al(OH)4]2 as a paint is coated on a membrane; the thickness of the paint on the membrane is 0.2-0.25 mm; an anode and a cathode are respectively sealed and coated by the membrane; the Mg[Al(OH)4]2 or the Ca[Al(OH)4]2 is generated by reacting metallic aluminum with a supersalinity solution and then reactingwith Mg(OH)2 or Ca(OH)2. In the invention, the membrane is coated with the paint so as to be prevented from being pieced by a zinc dendrite, thereby effectively preventing the inner short circuit andgreatly prolonging the service life of the battery. Compared with a lead-acid battery, the weight of the zinc-nickel storage battery is only 1 / 3 that of the lead-acid battery and the service life of the zinc-nickel storage battery is prolonged by 3-4 times as comparison with the lead-acid battery; and compared with a lithium ion battery, the service life of the zinc-nickel storage battery is equivalent to the repeated charging for 1,000-2,000 times and the cost of the zinc-nickel storage battery is 1 / 3 of the cost of the lithium ion battery.

Description

technical field [0001] The present invention relates to a rechargeable battery, particularly an alkaline storage battery. Background technique [0002] Batteries, also known as secondary batteries, have many types, and their structures are mainly composed of positive electrodes, negative electrodes, diaphragms, electrolytes, and shells. At present, the widely used power batteries mainly include lead-acid batteries, alkaline batteries and lithium-ion batteries. Lead-acid batteries have the advantages of low price, but they have the disadvantages of bulkiness, short service life, and large pollution; lithium-ion batteries have the advantages of long service life, less pollution, and small size, but their biggest disadvantage is that they are expensive and difficult to manufacture. It is popularized and applied for power energy; nickel-separated batteries, iron-nickel batteries, nickel-metal hydride batteries, etc. are widely used in alkaline batteries. These batteries are eit...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/14H01M10/30H01M50/40H01M50/491
CPCY02E60/124Y02E60/10
Inventor 刘建政
Owner 刘建政
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