JP2662456B2 - Sealed storage battery - Google Patents

Sealed storage battery

Info

Publication number
JP2662456B2
JP2662456B2 JP2266066A JP26606690A JP2662456B2 JP 2662456 B2 JP2662456 B2 JP 2662456B2 JP 2266066 A JP2266066 A JP 2266066A JP 26606690 A JP26606690 A JP 26606690A JP 2662456 B2 JP2662456 B2 JP 2662456B2
Authority
JP
Japan
Prior art keywords
active material
electrolyte
storage battery
sealed storage
negative electrode
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP2266066A
Other languages
Japanese (ja)
Other versions
JPH04144073A (en
Inventor
健介 弘中
慎治 斉藤
敏 松林
昭夫 小牧
敬治 阿久戸
努 尾形
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Telegraph and Telephone Corp
Resonac Corp
Original Assignee
Nippon Telegraph and Telephone Corp
Shin Kobe Electric Machinery Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Telegraph and Telephone Corp, Shin Kobe Electric Machinery Co Ltd filed Critical Nippon Telegraph and Telephone Corp
Priority to JP2266066A priority Critical patent/JP2662456B2/en
Publication of JPH04144073A publication Critical patent/JPH04144073A/en
Application granted granted Critical
Publication of JP2662456B2 publication Critical patent/JP2662456B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/131—Primary casings, jackets or wrappings of a single cell or a single battery characterised by physical properties, e.g. gas-permeability or size
    • H01M50/133—Thickness
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
    • H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
    • H01M50/121—Organic material
    • 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
    • Y02E60/10—Energy storage using batteries
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は薄形の密閉形蓄電池に関するものである。Description: TECHNICAL FIELD The present invention relates to a thin sealed storage battery.

〔従来の技術〕[Conventional technology]

一般に、密閉形蓄電池は正極板、セパレータ及び負極
板を各１枚あるいは複数枚を順次積層してケース内に配
置し、電解液を注入した構造となっている。In general, a sealed storage battery has a structure in which one or more of a positive electrode plate, a separator, and a negative electrode plate are sequentially laminated and arranged in a case, and an electrolyte is injected.

最近、密閉形蓄電池を使用する機器の小形化が進む中
で、特に密閉形蓄電池の薄形化の要求が強くなってきて
おり、同一平面上に正極板と負極板を配置した構造が提
案されている。In recent years, as devices using sealed batteries have become smaller, the demand for thinner sealed batteries has become stronger, and a structure in which a positive electrode plate and a negative electrode plate are arranged on the same plane has been proposed. ing.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

正極板と負極板を電解液保持体を介して同一平面上に
隣接配置させた場合、電解液と極板活物質との接触面積
が非常に小さくなり、電池内部抵抗が増大し、高率放電
容量が小さいという欠点があり、また、取扱い時に各極
板と電解液保持体間が離れ易く、容量が低下するという
欠点があった。When the positive electrode plate and the negative electrode plate are arranged adjacent to each other on the same plane via the electrolyte holder, the contact area between the electrolyte and the electrode plate active material becomes very small, the internal resistance of the battery increases, and high-rate discharge occurs. There is a drawback that the capacity is small, and there is a drawback that each electrode plate and the electrolyte holder are easily separated during handling, and the capacity is reduced.

〔課題を解決するための手段および作用〕[Means and actions for solving the problem]

本発明は上記の欠点を除去するもので、正極と負極が
電解液保持体を介して同一平面上に隣接配置され、活物
質と電解液保持体とが相互に厚み方向に凹凸を有して組
み合わせられていることにより、活物質と電解液の接触
面積が増大し、電池内部抵抗が減少して、高率放電容量
が増加し、また、曲げられるようなことがあっても、活
物質と電解液保持体との間が剥離しないため、容量劣化
がないようにしたものである。The present invention eliminates the above-mentioned disadvantages, and the positive electrode and the negative electrode are arranged adjacently on the same plane via an electrolyte holder, and the active material and the electrolyte holder have irregularities in the thickness direction of each other. By being combined, the contact area between the active material and the electrolyte increases, the internal resistance of the battery decreases, the high-rate discharge capacity increases, and even if the battery is bent, Since there is no separation between the electrolyte holder and the electrolyte holder, there is no capacity deterioration.

〔実施例〕〔Example〕

本発明の一実施例を説明する。 An embodiment of the present invention will be described.

第１図、第２図に示すように、0.1mm厚みのポリプロ
ピレン製のフィルム１に、0.1mm厚みの櫛歯形状の鉛箔
をエポキシ系接着剤で接着し、正極集電体２及び負極集
電体３として同一平面上に配置した。次に電解液保持体
４として、ケイソウ土粉末ペーストを正極集電体２と負
極集電体３の間で各集電体の厚みより多少厚くなるよう
にスクリーン印刷により塗着乾燥後、各集電体2,3上に
それぞれ正極活物質５のペースト、負極活物質６のペー
ストを前記ケイソウ土粉末ペーストの高さまでスクリー
ン印刷し乾燥する。次いで、ケイソウ土粉末ペーストを
前回、印刷したところから水平方向に多少ずらして、ス
クリーン印刷し、乾燥する。更に、正極活物質５のペー
スト、負極活物質６のペーストを同様に水平方向に多少
ずらして前記ケイソウ土粉末ペーストの間に印刷、乾燥
を行なう。このように、各集電体２、３上への活物質の
塗着・乾燥工程を３度くりかえすことにより、各極活物
質5,6と電解液保持体４とが相互に厚み方向に凹凸を有
して組み合せられることになる。次に化成、水洗、乾燥
を行い、別のフィルム１で全体を覆いフィルム１同志を
一部未溶着部を残して周囲を溶着した。As shown in FIGS. 1 and 2, a comb-shaped lead foil having a thickness of 0.1 mm is adhered to a polypropylene film 1 having a thickness of 0.1 mm with an epoxy-based adhesive. The electric elements 3 were arranged on the same plane. Next, as an electrolyte holder 4, a diatomaceous earth powder paste is applied between the positive electrode current collector 2 and the negative electrode current collector 3 by screen printing so as to be slightly thicker than the thickness of each current collector. The paste of the positive electrode active material 5 and the paste of the negative electrode active material 6 are screen-printed on the conductors 2 and 3 to the height of the diatomaceous earth powder paste and dried. Next, the diatomaceous earth powder paste is screen-printed with a slight shift in the horizontal direction from the previous printing, and dried. Further, the paste of the positive electrode active material 5 and the paste of the negative electrode active material 6 are similarly slightly shifted in the horizontal direction, and printing and drying are performed between the diatomaceous earth powder pastes. In this way, by repeating the process of applying and drying the active material on each of the current collectors 2 and 3 three times, each of the electrode active materials 5 and 6 and the electrolyte holding member 4 are uneven in the thickness direction. Will be combined. Next, formation, washing and drying were performed, and the whole was covered with another film 1 and the periphery of the film 1 was welded except for a part of the unwelded portion.

溶着後、未溶着部から内部に所定量の電解液を注入
し、次いで未溶着部にはオイルを注入して安全弁部とし
た。After welding, a predetermined amount of electrolyte was injected into the interior from the unwelded portion, and then oil was injected into the unwelded portion to form a safety valve portion.

また、比較検討のため第３図に示す様に、各極活物質
5,6と電解液保持体４に厚み方向の凹凸をもたない断面
がフラットな従来の密閉形鉛蓄電池を作成した。試験結
果として、本発明品と前記従来品のIC定電流による高率
放電特性を第４図に示した。本発明品は従来品に比べ持
続時間が約50％向上したことがわかる。As shown in Fig. 3 for comparison, each pole active material
A conventional sealed lead-acid battery having a flat cross section without irregularities in the thickness direction of the electrolyte holder 5 and the electrolyte holder 5 was prepared. As a result of the test, FIG. 4 shows the high-rate discharge characteristics of the product of the present invention and the above-mentioned conventional product at a constant current of IC. It can be seen that the product of the present invention has about 50% longer duration than the conventional product.

さらに、第５図に示すように密閉形鉛蓄電池の厚み方
向に中心から20゜の曲げを加えた状態で同様の高率放電
試験を行なった。結果を第６図に示す。第４図との比較
より、従来品は放電持続時間が半減するが、本発明品で
はほとんど影響がない。Further, as shown in FIG. 5, a similar high-rate discharge test was performed in a state where a 20 ° bending was applied from the center in the thickness direction of the sealed lead-acid battery. The results are shown in FIG. As compared with FIG. 4, the discharge duration of the conventional product is halved, but the discharge of the present invention has almost no effect.

〔発明の効果〕〔The invention's effect〕

上述のように、本発明は、活物質と電解液保持体とが
相互に厚み方向に凹凸を有して組み合わせられたことに
より、曲げにも強く高率放電容量の劣化しない薄形の密
閉形蓄電池が提供でき、工業的価値は大である。As described above, the present invention provides a thin hermetically sealed type that is resistant to bending and does not deteriorate in high-rate discharge capacity, because the active material and the electrolyte holder are combined with unevenness in the thickness direction. Storage batteries can be provided, and the industrial value is great.

【図面の簡単な説明】[Brief description of the drawings]

第１図は本発明一実施例を示す平面図、第２図は第１図
のＡ−Ａ線に沿う断面図、第３図は従来の密閉形鉛蓄電
池を示す断面図、第４図は本発明品と従来品における高
率放電特性曲線図、第５図は密閉形鉛蓄電池の厚み方向
に曲げを加えた状態を示す説明図、第６図は曲げ状態に
おける高率放電特性曲線図である。 １……フィルム、２……正極集電体、３……負極集電
体、４……電解液保持体、５……正極活物質、６……負
極活物質。FIG. 1 is a plan view showing an embodiment of the present invention, FIG. 2 is a sectional view taken along the line AA of FIG. 1, FIG. 3 is a sectional view showing a conventional sealed lead-acid battery, and FIG. FIG. 5 is an explanatory diagram showing a state in which the sealed lead-acid battery is bent in the thickness direction, and FIG. 6 is a high-rate discharge characteristic curve in a bent state. is there. DESCRIPTION OF SYMBOLS 1 ... Film, 2 ... Positive electrode collector, 3 ... Negative electrode collector, 4 ... Electrolyte holder, 5 ... Positive electrode active material, 6 ... Negative electrode active material.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 小牧 昭夫 東京都新宿区西新宿２丁目１番１号 新 神戸電機株式会社内 (72)発明者 阿久戸 敬治 東京都千代田区内幸町１丁目１番６号 日本電信電話株式会社内 (72)発明者 尾形 努 東京都千代田区内幸町１丁目１番６号 日本電信電話株式会社内 審査官 青木 千歌子 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Akio Komaki 2-1-1 Nishi-Shinjuku, Shinjuku-ku, Tokyo Shin-Kobe Electric Co., Ltd. (72) Inventor Keiji Akuto 1-6-1 Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation (72) Inventor Tsutomu Ogata 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation Chief Examiner Chiakiko Aoki

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】正極と負極が電解液保持体を介して同一平
面上に隣接配置され、活物質と電解液保持体とが相互に
厚み方向に凹凸を有して組み合わせられたことを特徴と
する密閉形蓄電池。1. A positive electrode and a negative electrode are arranged adjacently on the same plane via an electrolyte holder, and the active material and the electrolyte holder are combined with each other with unevenness in the thickness direction. Sealed storage battery.
JP2266066A 1990-10-03 1990-10-03 Sealed storage battery Expired - Lifetime JP2662456B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2266066A JP2662456B2 (en) 1990-10-03 1990-10-03 Sealed storage battery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2266066A JP2662456B2 (en) 1990-10-03 1990-10-03 Sealed storage battery

Publications (2)

Publication Number Publication Date
JPH04144073A JPH04144073A (en) 1992-05-18
JP2662456B2 true JP2662456B2 (en) 1997-10-15

Family

ID=17425895

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2266066A Expired - Lifetime JP2662456B2 (en) 1990-10-03 1990-10-03 Sealed storage battery

Country Status (1)

Country Link
JP (1) JP2662456B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005525674A (en) * 2001-07-27 2005-08-25 マサチューセッツ　インスティテュート　オブ　テクノロジー Battery structure, self-organizing structure, and related method

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20090202903A1 (en) 2007-05-25 2009-08-13 Massachusetts Institute Of Technology Batteries and electrodes for use thereof
JP5462741B2 (en) * 2010-08-18 2014-04-02 大日本スクリーン製造株式会社 Battery manufacturing method, battery, vehicle, and electronic device
JP5462775B2 (en) * 2010-12-02 2014-04-02 大日本スクリーン製造株式会社 Battery manufacturing method, battery, vehicle, RF-ID tag, and electronic device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005525674A (en) * 2001-07-27 2005-08-25 マサチューセッツ　インスティテュート　オブ　テクノロジー Battery structure, self-organizing structure, and related method

Also Published As

Publication number Publication date
JPH04144073A (en) 1992-05-18

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