CN1019924C - 电气双层电容器 - Google Patents

电气双层电容器 Download PDF

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CN1019924C
CN1019924C CN90107102A CN90107102A CN1019924C CN 1019924 C CN1019924 C CN 1019924C CN 90107102 A CN90107102 A CN 90107102A CN 90107102 A CN90107102 A CN 90107102A CN 1019924 C CN1019924 C CN 1019924C
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polarizing electrode
pasty state
tabular
solid
collector body
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CN1049747A (zh
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仓林研
土屋善信
吉田彰夫
小泉均
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Isuzu Motors Ltd
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Isuzu Motors Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G4/00—Fixed capacitors; Processes of their manufacture
    • H01G4/30—Stacked capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/26—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features
    • H01G11/28—Electrodes characterised by their structure, e.g. multi-layered, porosity or surface features arranged or disposed on a current collector; Layers or phases between electrodes and current collectors, e.g. adhesives
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/22—Electrodes
    • H01G11/30—Electrodes characterised by their material
    • H01G11/32—Carbon-based
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/66—Current collectors
    • H01G11/72—Current collectors specially adapted for integration in multiple or stacked hybrid or EDL capacitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
    • H01G11/00—Hybrid capacitors, i.e. capacitors having different positive and negative electrodes; Electric double-layer [EDL] capacitors; Processes for the manufacture thereof or of parts thereof
    • H01G11/54—Electrolytes
    • H01G11/58—Liquid electrolytes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/13—Energy storage using capacitors

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Chemical & Material Sciences (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Electric Double-Layer Capacitors Or The Like (AREA)

Abstract

一种电气双层电容器，其特征在于，它包括：通过隔板分隔加以配设的固体板状极化电极和介于该固体板状极化电极与集电体之间的糊状极化电极。具有制作方便、极化电极与集电体间接触电阻小及易于小型化的优点。

Description

本发明涉及改进了极化电极部分的电气双层电容器。
现有的电气双层电容器示于图3。在图3中，1、2是集电体，3、4是垫圈，5是隔板，6、7是糊状极化电极。
对于集电体1、2使用导电的橡胶片，对于垫圈3、4，使用绝缘橡胶。糊状的极化电极6、7，是使活性炭粉末中浸透作为电解液的稀硫酸并使之混合从而制成糊状的。隔板5配置于糊状极化电极之间，使一对糊状极化电极相互绝缘。且作为隔板5，使用可离子导通的、绝缘且多孔的塑料簿膜。
集电体配置在糊状极化电极与隔板不相邻的一侧。
为了使活性炭粒子相互接触良好，且使集电体1和糊状极化电极6及集电体2和糊状极化电极7接触良好，从集电体1，2上施加压力。集电体1，2和垫圈3，4采用具有弹性的材料，以便不会由于该压力而受到破坏。
为了增加这样的电气双层电容器的容量，使形成极化电极的活性炭的表面系数增大（通常，1000-2000m2/g），从而是充填时的体密度增加。
另一方面，极化电极在糊状难以处理，故曾提出了把它烧结以制成固体板状的提案（例如，特开昭62-292612号公报）。如果制成固体板状，由于体密度提高，容量变大，同时活性炭粒子相互的接触也紧密，存在接触电阻减少的有利之点。
但是，在采用固体板状极化电极的上述现有的电气双层电容器中，存在固体板状极化电极与集电体间的接触电阻容易变大的问 题。
如果把极化电极做成固体板状极化电极，则活性炭粒子相互间的接触变得良好，粒子相互间的接触电阻减少，但固体板状极化电极与集电体的接触是不均匀的，两者的接触电阻容易变大。于是，作为电气双层电容器整体考虑时的内部电阻，很有可能变大。
为了使固体板状极化电极与集电体的接触良好，考虑从集电体上加压力，硬使固体板状极化电极与其接触的方法。
但是，如果这样做，则存在固体板状极化电极由于该力而被破坏的危险性。因而，不能采用该方法。
本发明把解决上述问题作为课题。
为了解决上述课题，在本发明的电气双层电容器中，采用下述方法，不失去固体板状极化电极的优点，而且应使与集电体的接触电阻变小。
即，本发明的电气双层电容器其构成具备：由隔板分隔而配设的固体板状极化电极和介于该固体板状极化电极与集电体之间的糊状极化电极。
极化电极的固体板状极化电极部分，具有活性炭粒子相互间接触电阻小的优点和处理方便的优点。
另一方面，介于固体板状极化电极与集电体之间的糊状极化电极，由于与固体板状极化电极及与集电体均接触良好，结果，极化电极与集电体间的接触电阻变小。
又，糊状的极化电极，由于可以是作为起与集电体接触中介的薄的层，因而可以通过涂敷加以形成。
图1是涉及本发明的实施例的电气双层电容器。
图2是表示固体板状极化电极的图。
图3是现有的电气双层电容器。
图中，1、2是集电体，3、4是垫圈，5是隔板，6、7是糊状极化 电极，61、71是固体板状极化电极。
下面根据附图，详细地说明本发明的实施例。
涉及本发明的实施例的电气双层电容器示于图1。固体板状极化电极示于图2。其中符号与图3相对应。但，61、71是烧结粒状活性炭、使浸透稀硫酸等的电解液的固体板状极化电极。
在本发明中，极化电极做成双层构造，为了享有处理容易、活性炭相互间的接触电阻小的优点，大部分的极化电极做成固体板状;但为了使与集电体的接触电阻小，让糊状极化电极介于中间。
固体板状极化电极61、71通过隔板5隔开加以设置，它占有极化电极的大部分。糊状极化电极6，在固体板状极化电极61的面向集电体1的一侧，通过刮刀等薄薄的涂敷。
糊状极化电极6，由于是糊状的，使集电体1与固体板状极化电极61两者接触良好，使接触电阻变小。
同样地，糊状极化电极7也被涂敷于固体板状极化电极71上，使与集电体2间的接触电阻变小。
如果按照上述那样的本发明，可以取得下述效果。
（1）尽管仍采用固体板状极化电极，但能使极化电极与集电体间的接触电阻变小。
（2）由于刚性高且薄的材料已能使用于集电体与垫圈，能使电气双层电容器小型化。
在本发明中，已没有必要为了使集电体与极化电极的接触电阻小，而从集电体上方加压力。由此，已能把假如加压力，就有破裂危险的刚性好、薄的材料（如塑料）用于集电体和垫圈，能够使电气双层电容器整体的尺寸小型化。

Claims (1)

1、一种电气双层电容器，包括一对由活性炭和电解液混合物制成的糊状极化电极；一个设置于所述糊状极化电极之间使一对糊状极化电极彼此绝缘的、可离子导通的绝缘隔板；一对设于糊状极化电极与所述隔板不相邻一侧的集电体；其特征在于，还具有设置在所述隔板与糊状极化电极之间、用活性炭制成的且通过上述隔板相互隔开的一对固体板状极化电极。
CN90107102A 1989-08-23 1990-08-14 电气双层电容器 Expired - Fee Related CN1019924C (zh)

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Application Number Priority Date Filing Date Title
JP216968/89 1989-08-23
JP1216968A JPH065657B2 (ja) 1989-08-23 1989-08-23 電気二重層コンデンサ

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CN1049747A CN1049747A (zh) 1991-03-06
CN1019924C true CN1019924C (zh) 1993-02-17

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US (1) US5072337A (zh)
EP (1) EP0413993B1 (zh)
JP (1) JPH065657B2 (zh)
KR (1) KR950010193B1 (zh)
CN (1) CN1019924C (zh)
CA (1) CA2023756C (zh)
DE (1) DE69006798T2 (zh)

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KR910005345A (ko) 1991-03-30
JPH065657B2 (ja) 1994-01-19
CA2023756A1 (en) 1991-02-24
JPH0380518A (ja) 1991-04-05
CN1049747A (zh) 1991-03-06
DE69006798T2 (de) 1994-06-01
CA2023756C (en) 1995-08-01
DE69006798D1 (de) 1994-03-31
EP0413993A2 (en) 1991-02-27
KR950010193B1 (ko) 1995-09-11
US5072337A (en) 1991-12-10
EP0413993A3 (en) 1991-07-17
EP0413993B1 (en) 1994-02-23

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