JP2552354B2 - Sealed lead acid battery - Google Patents
Sealed lead acid batteryInfo
- Publication number
- JP2552354B2 JP2552354B2 JP1057077A JP5707789A JP2552354B2 JP 2552354 B2 JP2552354 B2 JP 2552354B2 JP 1057077 A JP1057077 A JP 1057077A JP 5707789 A JP5707789 A JP 5707789A JP 2552354 B2 JP2552354 B2 JP 2552354B2
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- positive electrode
- acid battery
- sealed lead
- 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
Links
- 239000002253 acid Substances 0.000 title claims description 18
- 239000008151 electrolyte solution Substances 0.000 claims description 24
- 239000011347 resin Substances 0.000 claims description 11
- 229920005989 resin Polymers 0.000 claims description 11
- 239000011149 active material Substances 0.000 claims description 9
- 239000007772 electrode material Substances 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 description 8
- 238000006243 chemical reaction Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000835 fiber Substances 0.000 description 5
- 239000007773 negative electrode material Substances 0.000 description 3
- 239000007774 positive electrode material Substances 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 229920002972 Acrylic fiber Polymers 0.000 description 1
- 229910000978 Pb alloy Inorganic materials 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000012784 inorganic fiber Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000000087 stabilizing effect Effects 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/06—Lead-acid accumulators
- H01M10/12—Construction or manufacture
- H01M10/126—Small-sized flat cells or batteries for portable equipment
-
- 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
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
- 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
- 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)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Secondary Cells (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、ポータブル機器などの小型機器に用いるこ
とのできる密閉形鉛蓄電池の構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the structure of a sealed lead-acid battery that can be used in small equipment such as portable equipment.
従来の技術 従来、密閉形鉛蓄電池の構造は、電解液保持体である
セパレータなどを介して、正極板と負極板を積層した構
造となっている。しかしながら、この構造では、近年の
機器の小型化に伴う密閉形鉛蓄電池の薄形化要求に対し
て、既に限界にきている。そこで、第５図に示すよう
な、同一平面上に正極１と負極２を電解液を保持したセ
パレータ10を介して配置し、全体を樹脂製フィルム８で
密封した密閉形鉛蓄電池の構造が提案されている。（比
較品） 発明が解決しようとする課題 上記提案による密閉形鉛蓄電池は、厚さの面でかなり
薄くすることができるようになった。しかしながら、同
一平面上で、必要量の電解液を保持したセパレータを介
して正極と負極を配置するために、極間が離れすぎてセ
パレータ中の電解液抵抗が大きくなる欠点があり、その
ために、あえて電解液量を制限して極間を接近させても
電解液が存するために短絡し易いという欠点を生じ、ま
た、電解液との接触が活物質全体に及びにくいので、充
分な容量がでない欠点を有している。2. Description of the Related Art Conventionally, the structure of a sealed lead-acid battery has a structure in which a positive electrode plate and a negative electrode plate are laminated with a separator or the like serving as an electrolyte solution holder interposed. However, this structure has already reached its limit in response to the demand for thinner sealed lead acid batteries due to the recent miniaturization of equipment. Therefore, as shown in FIG. 5, a structure of a sealed lead-acid battery in which the positive electrode 1 and the negative electrode 2 are arranged on the same plane via a separator 10 holding an electrolytic solution and the whole is sealed with a resin film 8 is proposed. Has been done. (Comparative Product) Problems to be Solved by the Invention The sealed lead-acid battery proposed above can be made considerably thin in terms of thickness. However, on the same plane, in order to arrange the positive electrode and the negative electrode via the separator holding a necessary amount of the electrolytic solution, there is a drawback that the distance between the electrodes is too large and the electrolytic solution resistance in the separator becomes large, and therefore, Even if the amount of the electrolytic solution is limited and the electrodes are brought close to each other, there is a drawback that a short circuit easily occurs due to the existence of the electrolytic solution, and contact with the electrolytic solution is difficult to reach the entire active material, so that the capacity is not sufficient. It has drawbacks.
本発明は、上記の問題を解決し、さらに高容量化を可
能にするような密閉形鉛蓄電池を提供することを目的と
する。It is an object of the present invention to provide a sealed lead acid battery that solves the above problems and enables higher capacity.
課題を解決するための手段 本発明は、正極及び負極が樹脂製フィルムの内面の同
一平面上に設置されている密閉形鉛蓄電池であって、前
記正極及び負極は、前記同一平面上に各極集電体が互い
に離間して配置され、且つ該各極集電体上に各極活物質
面を有するものであり、前記正極と負極との間には、電
解液で充たされない空間層を有し、且つ前記各極活物質
面の上部と前記空間層の上部にわたって電解液保持層を
設けたことを特徴とするものである。Means for Solving the Problems The present invention is a sealed lead-acid battery in which a positive electrode and a negative electrode are installed on the same plane of the inner surface of a resin film, and the positive electrode and the negative electrode are each electrode on the same plane. The current collectors are arranged so as to be separated from each other and each electrode current collector has each electrode active material surface, and a space layer not filled with an electrolytic solution is provided between the positive electrode and the negative electrode. The electrolytic solution holding layer is provided over the surface of each of the polar active materials and the upper portion of the space layer.
作 用 本発明は、正極及びに負極が樹脂製フィルムの内面の
同一平面上に設置されている密閉形鉛蓄電池において、
放電時には、電解液保持層を通じて電池反応が進行し、
充電時には、前記空間層を通じて直接対極へのガス吸収
反応が進行するので、正極と負極が接触する電池反応に
必要な電解液量を常に確保できる。Operation The present invention relates to a sealed lead acid battery in which the positive electrode and the negative electrode are installed on the same plane of the inner surface of the resin film,
During discharge, the battery reaction proceeds through the electrolyte retention layer,
At the time of charging, the gas absorption reaction directly proceeds to the counter electrode through the space layer, so that the amount of the electrolytic solution necessary for the battery reaction in which the positive electrode and the negative electrode are in contact can be always secured.
実施例 本発明の一実施例について説明する。Example One example of the present invention will be described.
第１図は、本発明の密閉形鉛蓄電池に関する第１の実
施例としてその縦断面図を示すもので、１は正極、２は
負極、３は正極活物質、４は正極集電体、５は電解液保
持層、６は負極活物質、７は負極集電体、８は樹脂製フ
ィルム、９は電解液で充たされない空間層である。FIG. 1 is a longitudinal sectional view showing a sealed lead-acid battery according to a first embodiment of the present invention, wherein 1 is a positive electrode, 2 is a negative electrode, 3 is a positive electrode active material, 4 is a positive electrode current collector, 5 Is an electrolytic solution holding layer, 6 is a negative electrode active material, 7 is a negative electrode current collector, 8 is a resin film, and 9 is a space layer not filled with an electrolytic solution.
第１図の実施例において、正極１と負極２が電解液で
充たされない空間層９を介して樹脂製フィルム８の内面
の同一平面上に設置され、各極活物質３、６面下部に各
極集電体４、７を有し、各極活物質３、６面の上部と空
間層９の上部にわたって無機繊維又は有機繊維を主体と
する不織布が電解液保持層５として配置され、全体が気
密性を有する樹脂製フィルム８で密封されている。（本
発明品） 電解液保持層５の不織布としては、ガラス繊維のほか
にアルミナ繊維、ジルコニア繊維、ポリプロピレン繊
維、ポリエステル繊維、アクリル繊維等を使用すること
ができる。In the embodiment shown in FIG. 1, the positive electrode 1 and the negative electrode 2 are installed on the same plane of the inner surface of the resin film 8 with the space layer 9 not filled with the electrolytic solution interposed therebetween. A non-woven fabric mainly composed of inorganic fibers or organic fibers is disposed as the electrolytic solution holding layer 5 having the respective electrode current collectors 4 and 7 and extending over the respective surface of the electrode active materials 3 and 6 and the space layer 9. Are sealed with a resin film 8 having airtightness. (Inventive product) As the non-woven fabric of the electrolyte solution holding layer 5, besides glass fibers, alumina fibers, zirconia fibers, polypropylene fibers, polyester fibers, acrylic fibers, etc. can be used.
正極活物質３は、PbO2、負極活物質６は、Pbであり、
正極集電体４と負極集電体７は、鉛又は鉛合金シートか
らなっている。The positive electrode active material 3 is PbO 2 , the negative electrode active material 6 is Pb,
The positive electrode current collector 4 and the negative electrode current collector 7 are made of lead or a lead alloy sheet.
正極１と負極２の平面形状は、第３図（ａ）、（ｂ）
にそれぞれ示すもので、第４図のように空間層９を隔て
て組み合わされている。第４図のＡ−Ａ線に沿う断面
が、第１図の正極１と負極２との関係に相当する。The planar shapes of the positive electrode 1 and the negative electrode 2 are shown in FIGS. 3 (a) and 3 (b).
In FIG. 4, they are combined with a space layer 9 in between as shown in FIG. The cross section taken along the line AA of FIG. 4 corresponds to the relationship between the positive electrode 1 and the negative electrode 2 of FIG.
なお、各極集電体４、７と各極活物質３、６を合わせ
た各極板の厚さは1mm、幅は4mm、正極１と負極２の間の
空間層９の間隔は2mmで、電解液保持層５の厚さは1.2m
m、大きさは52mm×52mmである。樹脂製フィルム８の大
きさは60mm×60mmで厚さは0.1mmである。その結果、密
閉形鉛蓄電池の厚さは全体で2.4mmとなり、極めて薄く
かつ十分な容量を持つ密閉形鉛蓄電池を得ることが可能
となる。In addition, the thickness of each electrode plate including the respective electrode current collectors 4 and 7 and the respective electrode active materials 3 and 6 is 1 mm, the width is 4 mm, and the space layer 9 between the positive electrode 1 and the negative electrode 2 is spaced by 2 mm. , The thickness of the electrolyte holding layer 5 is 1.2m
m, size is 52mm × 52mm. The resin film 8 has a size of 60 mm × 60 mm and a thickness of 0.1 mm. As a result, the total thickness of the sealed lead acid battery is 2.4 mm, and it is possible to obtain an extremely thin sealed lead acid battery having a sufficient capacity.
放電時には、電解液保持層５を通じて電池反応が進行
し、充電時には、空間層９を通じて直接対極へのガス吸
収反応が進行するので、正極１と負極２が接触する電池
反応に必要な電解液量を常に確保できる。At the time of discharging, a battery reaction proceeds through the electrolyte holding layer 5, and at the time of charging, a gas absorbing reaction proceeds directly to the counter electrode through the space layer 9, so that the amount of electrolyte required for the battery reaction in which the positive electrode 1 and the negative electrode 2 are in contact with each other. Can always be secured.
正極１、負極２を樹脂製フィルム８の内面の同一平面
上に設置したとき、電解液保持層５を各極１、２の活物
質３、６面の上部と空間層９の上部にわたって設置する
と、各極１、２間に電解液を保持したセパレータ10を設
置するものに比べて、活物質３、６に接触する電解液の
保持量が多く、活物質３、６面全体での反応が可能とな
り、又、各極１、２間に空間層９を設けると電解液によ
る集電体４、７の腐食防止が可能で、更に内部抵抗を小
さくするための各極１、２間隔の接近も可能となりそれ
に伴い密閉形鉛蓄電池も小型化できる。又、活物質３、
６面の各極集電体４、７からの剥離防止、各極１、２間
の短絡防止にも役立ち、全体的に容量安定となる。更に
各極１、２間に空間層９を有しているために充電中の発
生ガスがこの空間層９に一時的に溜り、次いでガスが電
解液保持層５中に補らわれず直接対極へ吸収されるの
で、電解液保持層５と各極１、２との密着ガス発生によ
り損なわれることがなくなり、高容量化できる。When the positive electrode 1 and the negative electrode 2 are installed on the same plane of the inner surface of the resin film 8, when the electrolyte holding layer 5 is installed over the active materials 3 and 6 of the electrodes 1 and 2 and the space layer 9. , The amount of the electrolytic solution in contact with the active materials 3 and 6 is larger than that in the case where the separator 10 holding the electrolytic solution between the electrodes 1 and 2 is installed, and the reaction on the entire surfaces of the active materials 3 and 6 is If the space layer 9 is provided between the electrodes 1 and 2, it is possible to prevent corrosion of the current collectors 4 and 7 by the electrolytic solution, and the distance between the electrodes 1 and 2 is reduced in order to further reduce the internal resistance. The sealed lead-acid battery can be downsized accordingly. In addition, active material 3,
It helps prevent peeling from the six electrode current collectors 4 and 7, and prevents short circuits between the electrodes 1 and 2, thus stabilizing the capacity as a whole. Further, since the space layer 9 is provided between the electrodes 1 and 2, the generated gas during charging temporarily accumulates in the space layer 9, and then the gas is not supplemented in the electrolytic solution holding layer 5 and directly counter electrode. Since it is absorbed into the electrolyte solution holding layer 5, it is not damaged by the generation of contact gas between the electrolyte holding layer 5 and the electrodes 1 and 2, and the capacity can be increased.
また、本発明の密閉形鉛蓄電池に関する第２の実施例
として、第１図に示した空間層９に通気性を有する絶縁
性の隔離体11を備えたものを第２図に示している。この
隔離体11の高さは各極１、２の高さ以上が望ましい。As a second embodiment of the sealed lead-acid battery of the present invention, FIG. 2 shows a space layer 9 shown in FIG. 1 provided with an insulating separator 11 having air permeability. The height of the separator 11 is preferably equal to or higher than the height of each pole 1, 2.
隔離体11は、正極１と負極２が近接する場合の短絡防
止のために有効である。The separator 11 is effective for preventing a short circuit when the positive electrode 1 and the negative electrode 2 are close to each other.
第６図に前記本発明品と比較品の1Cの定電流による高
率放電曲線を示す。図よりわかるように、比較品は30分
間の放電持続時間であったが、本発明品は45分間とな
り、比較品より容量が50％向上した。FIG. 6 shows high-rate discharge curves of the product of the present invention and the comparative product at a constant current of 1C. As can be seen from the figure, the comparative product had a discharge duration of 30 minutes, but the product of the present invention had 45 minutes, and the capacity was improved by 50% compared to the comparative product.
発明の効果 本発明により、正極及び負極が樹脂製フィルムの内面
の同一平面上に設置されている密閉形鉛蓄電池におい
て、密閉形鉛蓄電池に比べ、活物質反応面積が増し、そ
の結果容量安定となった。又、極間に空間層を設けたこ
とにより短絡を防止し、なおかつ極間を接近させること
ができ、又、集電体に直接電解液が接触しないため、そ
の腐食防止にも役立っており、更に、充電時に発生した
ガスが直接対極へ吸収されて電解液保持層へ残留しない
ため、活物質と電解液が十分に接触し高容量化をもたら
すので、工業的価値は絶大なるものである。Effects of the Invention According to the present invention, in a sealed lead-acid battery in which the positive electrode and the negative electrode are installed on the same plane of the inner surface of the resin film, the active material reaction area is increased as compared with the sealed lead-acid battery, resulting in stable capacity. became. Further, by providing a space layer between the electrodes, it is possible to prevent a short circuit and yet to bring the electrodes close to each other, and since the electrolyte does not come into direct contact with the current collector, it is also useful for preventing corrosion thereof. Further, the gas generated during charging is directly absorbed by the counter electrode and does not remain in the electrolytic solution holding layer, so that the active material and the electrolytic solution are brought into sufficient contact with each other to bring about a high capacity, which is of great industrial value.
【図面の簡単な説明】 第１図は本発明の構造の一実施例を示す拡大断面図、第
２図は同じく他の実施例を示す拡大断面図、第３図は第
１図及び第２図に用いる（ａ）正極、（ｂ）負極、の形
状をそれぞれ示す平面図、第４図は同じく両極を組合せ
た状態を示す平面図、第５図は比較品の構造を示す拡大
断面図、第６図は本発明品と比較品における高率放電特
性曲線図である。 １は正極、２は負極、３は正極活物質、４は正極集電
体、５は電解液保持層、６は負極活物質、７は負極集電
体、８は樹脂製フィルム、９は空間層、10はセパレー
タ、11は絶縁性の隔離体BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an enlarged sectional view showing an embodiment of the structure of the present invention, FIG. 2 is an enlarged sectional view showing another embodiment of the present invention, and FIG. 3 is FIG. 1 and FIG. FIG. 4 is a plan view showing the shapes of (a) positive electrode and (b) negative electrode used in the figure, FIG. 4 is a plan view showing a state in which both electrodes are similarly combined, and FIG. 5 is an enlarged sectional view showing the structure of a comparative product, FIG. 6 is a high rate discharge characteristic curve diagram of the product of the present invention and the comparative product. 1 is a positive electrode, 2 is a negative electrode, 3 is a positive electrode active material, 4 is a positive electrode current collector, 5 is an electrolyte holding layer, 6 is a negative electrode active material, 7 is a negative electrode current collector, 8 is a resin film, and 9 is a space. Layer, 10 is a separator, 11 is an insulating separator
フロントページの続き (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 審査官 酒井 美知子 (56)参考文献 特開 昭63−190260（ＪＰ，Ａ) 特開 昭63−250066（ＪＰ，Ａ)Front Page Continuation (72) Inventor Keiji Akudo 1-1-6 Uchisaiwaicho, Chiyoda-ku, Tokyo Michiko Sakai, Examiner, Nippon Telegraph and Telephone Corporation (56) Reference JP-A-63-190260 (JP, A) Sho 63-250066 (JP, A)
Claims (1)
一平面上に設置されている密閉形鉛蓄電池であって、 前記正極及び負極は、前記同一平面上に各極集電体が互
いに離間して配置され、且つ該各極集電体上に各極活物
質面を有するものであり、 前記正極と負極との間には、電解液で充たされない空間
層を有し、且つ前記各極活物質面の上部と前記空間層の
上部にわたって電解液保持体を設けたことを特徴とする
密閉形鉛蓄電池。1. A sealed lead-acid battery in which a positive electrode and a negative electrode are installed on the same plane of an inner surface of a resin film, wherein the positive electrode and the negative electrode have respective current collectors separated from each other on the same plane. And each electrode active material surface on each electrode current collector, between the positive electrode and the negative electrode, there is a space layer not filled with an electrolytic solution, and A sealed lead acid battery, characterized in that an electrolytic solution holder is provided over the surface of the polar active material and over the space layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1057077A JP2552354B2 (en) | 1989-03-09 | 1989-03-09 | Sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1057077A JP2552354B2 (en) | 1989-03-09 | 1989-03-09 | Sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02236965A JPH02236965A (en) | 1990-09-19 |
| JP2552354B2 true JP2552354B2 (en) | 1996-11-13 |
Family
ID=13045405
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1057077A Expired - Lifetime JP2552354B2 (en) | 1989-03-09 | 1989-03-09 | Sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2552354B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB201203713D0 (en) | 2012-03-02 | 2012-04-18 | Energy Diagnostic Ltd | Energy storage battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63190260A (en) * | 1987-01-30 | 1988-08-05 | Shin Kobe Electric Mach Co Ltd | Lead storage battery |
| JPH0675406B2 (en) * | 1987-04-03 | 1994-09-21 | 日本電池株式会社 | Sealed lead acid battery |
-
1989
- 1989-03-09 JP JP1057077A patent/JP2552354B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH02236965A (en) | 1990-09-19 |
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