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Super capacitance storage battery

A technology of supercapacitors and batteries, applied in capacitors, electrolytic capacitors, circuits, etc., can solve the problems of low utilization rate of active materials of negative plates, low overall power density and cycle life of batteries, etc., and achieve high current charge-discharge cycle life, electrical conductivity Good performance and low impact

Inactive Publication Date: 2010-06-02
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] The purpose of the invention is to provide a combination of lead storage battery and lead oxide in order to overcome the shortcomings of poor capacitance of the capacitor electrode and low utilization rate of the active material of the negative plate in the existing supercapacitor storage battery, resulting in low overall power density and cycle life of the battery. The organically combined supercapacitor battery with carbon asymmetric supercapacitor not only has the characteristics of electrochemical double layer energy storage, high power density, high current charge and discharge and long cycle life of supercapacitor, but also has high capacity density of battery , high cost performance, and can adjust the capacitance in a wider range, improve the utilization rate of the active material of the negative plate, and greatly reduce the impact of the introduction of the capacitance electrode material on the energy density of the battery

Method used

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Embodiment 1

[0038] Embodiment 1: The supercapacitor storage battery provided in this embodiment is mainly used for electric bicycles and consists of six cells connected in series. like figure 1 As shown, each monomer includes six positive plates 1 and seven negative plates 2 arranged at intervals in a casing 4, and a commercial AGM separator 3 is used between adjacent positive plates 1 and negative plates 2 ( Thickness 0.6mm 10KPa) continuous coating, and the electrolyte is dilute sulfuric acid (density 1.28g / cm 3 ).

[0039] further combined figure 2 In the partial sectional view of the monomer shown, the positive plate 1 is a positive plate of a lead storage battery, and its specific composition and manufacturing method are as follows:

[0040] The size of the positive grid 11 is: 68mm×44mm×2.8mm, and it is made of lead-antimony-cadmium alloy with 1.6% antimony content and 1.2% cadmium content.

[0041] The lead storage battery positive plate lead paste 101 is coated on the positiv...

Embodiment 2

[0063] This supercapacitor accumulator that embodiment 2 provides, its difference with embodiment 1 is as follows:

[0064] Capacitor electrode material ratio: activated carbon 70%, graphite powder 15%, acetylene black 5%, PVDF 10%. Dry mix activated carbon and acetylene black for 5 minutes, add PVDF N-methylpyrrolidone (NMP) solution, then use an appropriate amount of N-methylpyrrolidone to make a slurry, stir for 1-2 After hours, mix well, roll and dry on a mirror stainless steel plate to make a film with a thickness of about 1mm, and then put it in an oven at 100°C for 2-4 hours to make it completely dry. It will be made into flakes, crushed and properly milled to make granules; sieved, and the parts smaller than 50 mesh and larger than 200 mesh are taken for later use.

[0065] The granular capacitive electrode material that will be made is vacuum-impregnated with deionized water for 30 minutes, then the apparent moisture is removed by vacuum filtration, and added in the ...

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Abstract

The invention discloses a super capacitance storage battery comprising a positive plate, a negative plate, a clapboard and electrolyte. The super capacitance storage battery is characterized in that the positive plate is a lead storage battery positive plate and at least one of the negative plates is a compound negative plate which is formed by adding a granular capacitance electrode material in a common lead storage battery negative plate diachylum formula. In the invention, the granular capacitance electrode material is added in the negative plate diachylum formula and formed by coating an active carbon material through a conductive material and has excellent conductivity; in addition, the material has improved density after prepared into granules by milling, can form a conductive network which has wide addition proportion range and strengthens active substances of the negative plate, reduce the internal resistance, improve the output power and improve the utilization rate of the active substance of the negative plate while fully playing the capacitance performance without changing the basic structure of the active substance of the negative plate, thereby prolonging the service life of the battery under the condition of high-rate partial charge (HRPSoC).

Description

technical field [0001] The invention belongs to the field of electrochemical energy storage devices, and in particular relates to a novel super capacitor storage battery. Background technique [0002] With the continuous development of the economy, energy, resources and the environment have become the focus of society. Finding clean, renewable and resource-saving energy is a very urgent and arduous task for human society. [0003] All kinds of lead-acid batteries are cost-effective, safe, easy to use and maintain, mature in production technology, friendly to the environment, and renewable. They are increasingly becoming the preferred batteries for various electric vehicles, communication power supplies, and UPS power supplies. However, due to the limitations of the electrochemical system of lead-acid batteries, the mass density and power density of batteries are low, and the cycle life of batteries is low when used as power batteries, especially as energy storage batteries a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01G9/042H01G9/02H01G9/035H01M14/00
CPCY02E60/13
Inventor 高建峰柳颖张娟周建国郑军伟
Owner SUZHOU UNIV
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