Preparation method of asymmetric rare earth capacitor battery

A capacitive battery, asymmetric technology, applied in the direction of electrode manufacturing, fuel cell integration, circuits, etc., can solve the problems of difficulty in improving production efficiency, affecting welding quality, and increasing loss rate, so as to improve production efficiency, improve battery consistency, The effect of low cycle life

Active Publication Date: 2013-06-05
淄博国利新电源科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In the prior art, after the pole piece comes out, the pole piece needs to be welded separately. After the baseband is drawn, it is rolled and cut into pole pieces of the corresponding size according to the proportion, and then manual turnover is entered into the next process for manual or machine operation. , Weld the pole piece with the tab. This method is very suitable for the pole piece used in small batteries; if the area of ​

Method used

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  • Preparation method of asymmetric rare earth capacitor battery
  • Preparation method of asymmetric rare earth capacitor battery
  • Preparation method of asymmetric rare earth capacitor battery

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Experimental program
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Effect test

Embodiment 1

[0056] It consists of four parts: preparation of slurry, integrated preparation of positive and negative electrodes, battery assembly and series connection of batteries, such as image 3 As shown, specifically:

[0057] a. Preparation of positive and negative electrode battery slurry and capacitor slurry:

[0058] Preparation of positive battery slurry: according to 5%wtCMC, 10%wtPTFE, 85%wt H 2 O mixed evenly, put on hold for 18h to make positive electrode glue; by weight 100%wt, get 70%wt yttrium-doped spherical nickel hydroxide, 3%wt cobalt powder, 1%wt yttrium oxide, 15%wt positive electrode glue, 11%wt h 2 O mixed evenly to prepare positive electrode slurry.

[0059] Preparation of negative battery slurry: according to 5%wt HPMC, 9%wtSBR, 86%wt H 2 O mixed evenly, put on hold for 18h to make negative electrode glue; by weight 100%wt, take 75%wt power type hydrogen storage alloy, 1.0%wt nickel powder, 1.0%wt cerium oxide, 1.0%wt ferric oxide, 10% wt negative electrode...

Embodiment 2

[0068] It consists of four parts: preparation of slurry, integrated preparation of positive and negative electrodes, battery assembly and series connection of batteries, such as image 3 As shown, specifically:

[0069] a. Preparation of positive and negative electrode battery slurry and capacitor slurry:

[0070] Preparation of positive battery slurry: according to 50%wt PTFE, 50%wt H 2 O mixed evenly, put on hold for 18h to make positive electrode glue; by weight 100%wt, get 75%wt yttrium-doped spherical nickel hydroxide, 1%wt cobalt powder, 1%wt yttrium oxide, 20%wt positive electrode glue, 3%wtH 2 O mixed evenly to prepare positive electrode slurry.

[0071] Preparation of negative battery slurry: according to 5%wt HPMC, 10%wtSBR, 5%wt PVDF, 80%wt H 2 O mixed evenly, put aside for 12h to make negative electrode glue; by weight 100%wt, take 70%wt power type hydrogen storage alloy, 1.0%wt nickel powder, 0.5%wt lanthanum oxide, 1.0%wt yttrium oxide, 0.5%wt four Ferric oxi...

Embodiment 3

[0080] It consists of four parts: preparation of slurry, integrated preparation of positive and negative electrodes, battery assembly and series connection of batteries, such as image 3 Shown, specifically: a, prepare positive and negative electrode battery slurry and capacitor slurry:

[0081] Preparation of positive battery slurry: according to 4%wt CMC, 10%wt PVA, 1%wt PTFE, 85%wt H 2 O mixed evenly, put on hold for 36h to make positive electrode glue; by weight 100%wt, take 75%wt yttrium-doped cobalt-coated spherical nickel hydroxide, 1%wt cobaltous oxide, 2%wt cobalt oxyhydroxide, 1%wt zinc oxide , 15%wt positive glue, 6%wt H 2 O mixed evenly to prepare positive electrode slurry.

[0082] Preparation of negative battery slurry: according to 3%wt HPMC, 3%wtSBR, 4%wt PTFE, 90%wt H 2 O mixed evenly, put aside for 24h to make negative electrode glue; by weight 100%wt, take 68%wt power type hydrogen storage alloy, 0.5%wt nickel powder, 0.5%wt ytterbium oxide, 1.0%wt yttriu...

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Abstract

The invention relates to a preparation method of an asymmetric rare earth capacitor battery, and belongs to the field of water power battery. The method comprises the steps that: positive electrode and negative electrode battery slurries and a capacitor slurry are prepared; the positive electrode slurry is coated on foamed nickel, such that a positive electrode is prepared; bake-drying, rolling, powder removing, welding, and longitudinal and transverse cutting are carried out, such that a positive electrode sheet is prepared; the positive electrode sheet is packaged by using a separation film bag; the negative electrode slurry is coated on foamed nickel, and the materials are bake-dried; the capacitor slurry is coated on the material, and secondary bake-drying, rolling, powder removing, welding, and longitudinal and transverse cutting are carried out, such that a negative electrode sheet is prepared; the positive and negative electrode sheets are stacked, such that a battery core is prepared; the battery core is placed in a housing, and welding, top cover sealing, and liquid injection are carried out; and series connection formation is carried out, such that the battery is prepared. According to the invention, laminated coating is adopted in preparing the negative electrode sheet, such that the capacitor material is completely effectively combined with the battery material, and the integration of the positive and negative electrode sheets and the conductive lugs is realized. The battery has the advantages of high safety, environment friendliness, and low cost. The battery has both the energy density advantage of a nickel-metal hydride battery and the power density advantage of an asymmetric supercapacitor, such that operation conditions for electric vehicle and the like can be achieved.

Description

technical field [0001] The invention relates to a preparation method of an asymmetric rare earth capacitor battery, and belongs to the technical field of water system power batteries. Background technique [0002] Since the beginning of the 21st century, the call for energy conservation and emission reduction has become increasingly high. The stable growth of the world economy and the sustainable development of human society also urgently require the development of new energy sources and improved energy utilization methods. Due to the advantages of reasonable energy density and appropriate power density, wide operating temperature range, and long cycle life, capacitor batteries have broad application prospects in portable appliances, electric vehicles, hybrid electric vehicles, and DC power supplies. Therefore, research on capacitor batteries has become a major focus of countries developing energy-saving and new energy industries. [0003] Supercapacitors have become a new ...

Claims

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Application Information

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IPC IPC(8): H01M16/00H01M4/04
CPCY02E60/12Y02B90/12Y02B90/10Y02E60/10Y02E60/50
Inventor 蒋志军
Owner 淄博国利新电源科技有限公司
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