JPH05129009A - Sealed lead-acid battery - Google Patents
Sealed lead-acid batteryInfo
- Publication number
- JPH05129009A JPH05129009A JP3289013A JP28901391A JPH05129009A JP H05129009 A JPH05129009 A JP H05129009A JP 3289013 A JP3289013 A JP 3289013A JP 28901391 A JP28901391 A JP 28901391A JP H05129009 A JPH05129009 A JP H05129009A
- Authority
- JP
- Japan
- Prior art keywords
- acid battery
- safety valve
- sealed lead
- plate group
- electrode plate
- 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.)
- Granted
Links
- 239000002253 acid Substances 0.000 title claims abstract description 26
- 239000011347 resin Substances 0.000 claims abstract description 23
- 229920005989 resin Polymers 0.000 claims abstract description 23
- 230000000052 comparative effect Effects 0.000 description 12
- 230000002093 peripheral effect Effects 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000011149 active material Substances 0.000 description 2
- 238000007650 screen-printing Methods 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 230000003796 beauty Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910000464 lead oxide Inorganic materials 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- YEXPOXQUZXUXJW-UHFFFAOYSA-N oxolead Chemical compound [Pb]=O YEXPOXQUZXUXJW-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
- H01M50/30—Arrangements for facilitating escape of gases
- H01M50/317—Re-sealable arrangements
- H01M50/325—Re-sealable arrangements comprising deformable valve members, e.g. elastic or flexible valve members
-
- 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
- H01M50/116—Primary casings; Jackets or wrappings 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Gas Exhaust Devices For Batteries (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、密閉形鉛蓄電池の安全
弁部の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a safety valve portion of a sealed lead acid battery.
【０００２】[0002]
【従来の技術】近年、特に機器のポータブル化が進むに
つれて、その電源となる密閉形鉛蓄電池の寸法にも制約
が付けられるようになってきたため、極板群の厚み方向
を耐酸性を有する樹脂フィルム又はシートで挟んで包覆
密封した密閉形鉛蓄電池が提案され、安全弁部の構成も
前記樹脂フィルム又はシート同志を近接させた位置に小
孔を設けて形成したものが考えられている。この種安全
弁部を有する密閉形鉛蓄電池は、樹脂フィルム又はシー
ト同志を近接させた位置が、電池内圧が上昇したときに
離反して開弁し、電池内圧が外部圧力と同等以下のとき
に閉弁するように作用する。2. Description of the Related Art In recent years, with the progress of portable devices in particular, the size of a sealed lead-acid battery serving as a power source has also been restricted. Therefore, a resin having acid resistance in the thickness direction of an electrode plate group. A sealed lead-acid battery, which is sandwiched and sealed by a film or a sheet, has been proposed, and it is considered that the safety valve portion is also formed by forming a small hole at a position where the resin film or the sheet is close to each other. A sealed lead-acid battery with this kind of safety valve part opens when the position where the resin film or sheet is close to each other separates when the battery internal pressure rises, and closes when the battery internal pressure is equal to or less than the external pressure. It acts like a valve.
【０００３】[0003]
【発明が解決しようとする課題】上記従来の密閉形鉛蓄
電池では、極板群が薄い場合樹脂フィルム又はシート同
志は離れ易く、電池内圧が比較的低くても開弁するが、
極板群が厚くなると樹脂フィルム又はシート同志は離れ
難くなり、開弁に比較的高い電池内圧が必要となって、
密閉形鉛蓄電池が膨れてしまう問題がある。本発明は、
開弁圧が低く信頼性の高い安全弁部を備えた密閉形鉛蓄
電池を提供することを目的とする。In the above conventional sealed lead-acid battery, when the electrode plate group is thin, the resin films or sheets are easily separated from each other, and the valve opens even if the battery internal pressure is relatively low.
When the electrode plate group becomes thicker, it becomes difficult for the resin film or sheet to separate from each other, and a relatively high battery internal pressure is required to open
There is a problem that the sealed lead acid battery swells. The present invention is
An object of the present invention is to provide a sealed lead-acid battery having a safety valve portion with low valve opening pressure and high reliability.
【０００４】[0004]
【課題を解決するための手段】上記目的を達成するた
め、本発明は、極板群の厚み方向を耐酸性を有する樹脂
フィルム又はシートで挟んで包覆密封した密閉形鉛蓄電
池であって、前記樹脂フィルム又はシート同志を近接さ
せた位置に小孔を設けて形成した安全弁部を有するもの
であり、該安全弁部の樹脂フィルム又はシート同志を近
接させた位置は、前記極板群の厚み方向の中央付近であ
ることを特徴とする。To achieve the above object, the present invention relates to a sealed lead acid battery in which the thickness direction of an electrode plate group is sandwiched and sealed by a resin film or sheet having acid resistance, The resin film or sheet has a safety valve portion formed by providing a small hole at a position close to each other, and the position where the resin film or sheet members of the safety valve portion are close to each other is a thickness direction of the electrode plate group. It is characterized by being near the center of.
【０００５】[0005]
【作用】本発明は、安全弁部の樹脂フィルム又はシート
同志を近接させた位置を、前記極板群の厚み方向の中央
付近とすることにより、樹脂フィルム又はシート同志の
屈折の偏りを小さくして、安全弁部の開弁圧を低く信頼
性の高いものとすることができる。According to the present invention, the position where the resin films or sheets of the safety valve portion are brought close to each other is near the center in the thickness direction of the electrode plate group, so that the deviation of the refraction of the resin films or sheets can be reduced. The valve opening pressure of the safety valve can be made low and highly reliable.
【０００６】[0006]
【実施例】図１は、本発明の一実施例としての密閉形鉛
蓄電池（本発明品）を示す平面図であり、図２は、図１
におけるＡ−Ａ線に沿う断面図である。正極１および負
極３は、樹脂フィルム又はシート５上に接着固定した鉛
シートからなる集電体の上に、鉛酸化物を主成分とする
ペースト状の活物質材料をスクリーン印刷法で塗布し、
適宜の処理を施して活物質層が形成されている。電解質
２は、耐酸性を有する粉体あるいは繊維等を含有して構
成されており、例えばシリカのゲル状物質と電解液から
なるものを、正極１と負極３との間にスクリーン印刷法
等により塗布したものである。前記正極１、電解質２お
よび負極３を同一平面上に配置した極板群４は、上面か
ら耐酸性を有する樹脂フィルム又はシート５’で挟んで
周囲溶着部７にて密封されている。安全弁部は、該周囲
溶着部７とこれに連続しない不連続溶着部８とによって
樹脂フィルム又はシート５，５’同志を近接させ、この
近接面にシリコーンオイル９を注入した上に貫通小孔６
を設けて形成されている。該安全弁部の樹脂フィルム又
はシート５，５’同志を近接させた位置は、前記極板群
４の厚み方向の中央付近である。尚、極板群４の厚み
は、１mmのものと２mmのものを作成した。1 is a plan view showing a sealed lead-acid battery (product of the present invention) as an embodiment of the present invention, and FIG.
It is sectional drawing which follows the AA line in. For the positive electrode 1 and the negative electrode 3, a paste-like active material material containing lead oxide as a main component is applied by a screen printing method on a current collector made of a lead sheet adhered and fixed onto a resin film or a sheet 5.
The active material layer is formed by performing an appropriate treatment. The electrolyte 2 is configured to contain powder or fibers having acid resistance, and is composed of, for example, a gelled substance of silica and an electrolytic solution, and is applied between the positive electrode 1 and the negative electrode 3 by a screen printing method or the like. It is applied. The electrode plate group 4 in which the positive electrode 1, the electrolyte 2 and the negative electrode 3 are arranged on the same plane is sandwiched from the upper surface by a resin film or sheet 5 ′ having acid resistance and sealed by a peripheral welding portion 7. The safety valve portion brings the resin film or the sheets 5 and 5 ′ into close proximity by the peripheral welded portion 7 and the discontinuous welded portion 8 which is not continuous with the peripheral welded portion 7 and injects silicone oil 9 into the adjacent surface, and then the through small hole 6
Is provided. The position where the resin films or sheets 5 and 5 ′ of the safety valve portion are close to each other is near the center of the electrode plate group 4 in the thickness direction. The electrode plate group 4 was prepared to have a thickness of 1 mm or 2 mm.
【０００７】図３は、本発明の比較例としての密閉形鉛
蓄電池（比較品１）を示す断面図であり、安全弁部の樹
脂フィルム又はシート５，５’同志を近接させた位置を
極板群４の端から１／４厚み方向のところにした以外
は、本発明品と同様にした。図４は、本発明の比較例と
しての密閉形鉛蓄電池（比較品２）を示す断面図であ
り、安全弁部の樹脂フィルム又はシート５，５’同志を
近接させた位置を極板群４の端のところにした以外は、
本発明品と同様にした。本発明品と比較品１および比較
品２のそれぞれ極板群４の厚みが１mmのものと２mmのも
のについて、安全弁部の開弁圧を測定したところ、図５
に示すように、安全弁部の位置を極板群４の厚み方向の
中央付近にするほど、開弁圧が低い傾向を示し、この傾
向は、極板群４の厚みが厚いほど顕著であり、極板群４
の厚みが２mmの場合、安全弁部の位置を極板群４の厚み
方向の中央付近にすると、極板群４の端のところに設け
たものに比べて約１／２の低圧で開弁する。FIG. 3 is a cross-sectional view showing a sealed lead-acid battery (Comparative Product 1) as a comparative example of the present invention, in which the position where the resin film or sheet 5, 5'of the safety valve portion is close to each other is the electrode plate. The same process as the product of the present invention was performed except that it was located at a 1/4 thickness direction from the end of group 4. FIG. 4 is a cross-sectional view showing a sealed lead-acid battery (Comparative Product 2) as a comparative example of the present invention. The position where the resin films or sheets 5 and 5 ′ of the safety valve portion are close to each other is the electrode plate group 4. Except at the end
Same as the product of the present invention. When the valve opening pressure of the safety valve portion was measured for the invented product, the comparative product 1 and the comparative product 2 with the electrode plate group 4 having a thickness of 1 mm and 2 mm, respectively.
As shown in, the valve opening pressure tends to be lower as the position of the safety valve portion is closer to the center of the electrode plate group 4 in the thickness direction. This tendency is more remarkable as the electrode plate group 4 is thicker, Polar plate group 4
If the thickness of the safety plate is 2 mm and the safety valve is located near the center of the electrode plate group 4 in the thickness direction, the valve will open at a low pressure of about 1/2 of that provided at the end of the electrode plate group 4. ..
【０００８】[0008]
【発明の効果】上述のように、本発明は、密閉形鉛蓄電
池の安全弁部の開弁圧を低く、信頼性の高いものとする
ことができる点工業的価値大なるものである。As described above, the present invention is of great industrial value in that the valve opening pressure of the safety valve portion of the sealed lead-acid battery can be made low and the reliability can be made high.
【図１】本発明の一実施例としての密閉形鉛蓄電池（本
発明品）を示す平面図である。FIG. 1 is a plan view showing a sealed lead-acid battery (product of the present invention) as an embodiment of the present invention.
【図２】図１におけるＡ−Ａ線に沿う断面図である。FIG. 2 is a sectional view taken along the line AA in FIG.
【図３】本発明の比較例としての密閉形鉛蓄電池（比較
品１）を示す断面図である。FIG. 3 is a cross-sectional view showing a sealed lead-acid battery (Comparative Product 1) as a comparative example of the present invention.
【図４】本発明の比較例としての密閉形鉛蓄電池（比較
品２）を示す断面図である。FIG. 4 is a cross-sectional view showing a sealed lead-acid battery (Comparative product 2) as a comparative example of the present invention.
【図５】本発明品と比較品１および比較品２の安全弁部
の開弁圧を測定した結果を示す比較図である。FIG. 5 is a comparative diagram showing the results of measuring the valve opening pressures of the safety valve portions of the product of the present invention and Comparative products 1 and 2.
１は正極、２は電解質、３は負極、４は極板群、５，
５’は樹脂フィルム又はシート、６は貫通小孔、７は周
囲溶着部、８は不連続溶着部、９はシリコーンオイル1 is a positive electrode, 2 is an electrolyte, 3 is a negative electrode, 4 is an electrode plate group, 5,
5'is a resin film or sheet, 6 is a small through hole, 7 is a peripheral welded portion, 8 is a discontinuous welded portion, and 9 is silicone oil.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 早川 他▲く▼美 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 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 (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 (72)発明者 堀江 利夫 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 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hayakawa and others ▲ Ku ▼ Beauty, 2-1-1, Nishi-Shinjuku, Shinjuku-ku, Tokyo Within Shin-Kamido Electric Co., Ltd. (72) Inventor Akio Komaki Nishi-Shinjuku, Shinjuku-ku, Tokyo 2-1-1 No. 1 Shinjin Door Electric Co., Ltd. (72) Inventor Keiji Akudo 1-1-6 Uchiyuki-cho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Tsutomu Ogata 1 Uchi-yuki-cho, Chiyoda-ku, Tokyo 1-6 Nihon Telegraph and Telephone Corporation (72) Inventor Toshio Horie 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation
Claims (1)
ィルム又はシートで挟んで包覆密封した密閉形鉛蓄電池
であって、前記樹脂フィルム又はシート同志を近接させ
た位置に小孔を設けて形成した安全弁部を有するもので
あり、該安全弁部の樹脂フィルム又はシート同志を近接
させた位置は、前記極板群の厚み方向の中央付近である
ことを特徴とする密閉形鉛蓄電池。1. A sealed lead-acid battery in which the electrode plate group is sandwiched and sealed by a resin film or sheet having acid resistance in the thickness direction, and a small hole is provided at a position where the resin film or sheet is close to each other. A sealed lead-acid battery having a safety valve portion provided and formed, wherein a position of the safety valve portion where the resin films or sheets are brought close to each other is near the center in the thickness direction of the electrode plate group.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3289013A JP2875660B2 (en) | 1991-11-06 | 1991-11-06 | Sealed lead-acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3289013A JP2875660B2 (en) | 1991-11-06 | 1991-11-06 | Sealed lead-acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH05129009A true JPH05129009A (en) | 1993-05-25 |
| JP2875660B2 JP2875660B2 (en) | 1999-03-31 |
Family
ID=17737706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3289013A Expired - Lifetime JP2875660B2 (en) | 1991-11-06 | 1991-11-06 | Sealed lead-acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2875660B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617110U (en) * | 1992-07-30 | 1994-03-04 | 新神戸電機株式会社 | Thin sealed storage battery |
| WO2006126446A1 (en) * | 2005-05-23 | 2006-11-30 | Matsushita Electric Industrial Co., Ltd. | Safety mechanism for laminate battery |
| JP2011507183A (en) * | 2007-12-14 | 2011-03-03 | エルジー・ケム・リミテッド | Secondary battery having a sealing part with a novel structure |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174265A (en) * | 1987-01-09 | 1988-07-18 | Japan Storage Battery Co Ltd | Manufacture of thin type enclosed lead storage battery |
| JPH0260068A (en) * | 1988-08-25 | 1990-02-28 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
| JPH02236963A (en) * | 1989-03-09 | 1990-09-19 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
-
1991
- 1991-11-06 JP JP3289013A patent/JP2875660B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63174265A (en) * | 1987-01-09 | 1988-07-18 | Japan Storage Battery Co Ltd | Manufacture of thin type enclosed lead storage battery |
| JPH0260068A (en) * | 1988-08-25 | 1990-02-28 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
| JPH02236963A (en) * | 1989-03-09 | 1990-09-19 | Shin Kobe Electric Mach Co Ltd | Sealed lead-acid battery |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0617110U (en) * | 1992-07-30 | 1994-03-04 | 新神戸電機株式会社 | Thin sealed storage battery |
| WO2006126446A1 (en) * | 2005-05-23 | 2006-11-30 | Matsushita Electric Industrial Co., Ltd. | Safety mechanism for laminate battery |
| JP2007157678A (en) * | 2005-05-23 | 2007-06-21 | Matsushita Electric Ind Co Ltd | Safety mechanism for laminate battery |
| US8057933B2 (en) | 2005-05-23 | 2011-11-15 | Panasonic Corporation | Safety mechanism for laminate battery |
| JP2011507183A (en) * | 2007-12-14 | 2011-03-03 | エルジー・ケム・リミテッド | Secondary battery having a sealing part with a novel structure |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2875660B2 (en) | 1999-03-31 |
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