JPH0719590B2 - Negative electrode absorption type sealed lead acid battery - Google Patents
Negative electrode absorption type sealed lead acid batteryInfo
- Publication number
- JPH0719590B2 JPH0719590B2 JP60256112A JP25611285A JPH0719590B2 JP H0719590 B2 JPH0719590 B2 JP H0719590B2 JP 60256112 A JP60256112 A JP 60256112A JP 25611285 A JP25611285 A JP 25611285A JP H0719590 B2 JPH0719590 B2 JP H0719590B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- negative electrode
- sealed lead
- absorption type
- lead acid
- 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 8
- 238000010521 absorption reaction Methods 0.000 title claims description 7
- 229920005989 resin Polymers 0.000 claims description 7
- 239000011347 resin Substances 0.000 claims description 7
- 229920005992 thermoplastic resin Polymers 0.000 claims description 6
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000005452 bending Methods 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 description 12
- 229920001155 polypropylene Polymers 0.000 description 12
- -1 polypropylene Polymers 0.000 description 9
- 239000007788 liquid Substances 0.000 description 7
- 230000003014 reinforcing effect Effects 0.000 description 6
- 230000007423 decrease Effects 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000003466 welding Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003002 synthetic resin Polymers 0.000 description 2
- 239000000057 synthetic resin Substances 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000002834 transmittance 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/116—Primary casings; Jackets or wrappings characterised by the material
- H01M50/124—Primary casings; Jackets or wrappings characterised by the material having a layered structure
-
- 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
-
- 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
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
- H01M50/131—Primary casings; Jackets or wrappings characterised by physical properties, e.g. gas permeability, size or heat resistance
- H01M50/136—Flexibility or foldability
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Description
【発明の詳細な説明】 産業上の利用分野 本発明は、電気通信等の非常用電源として使用される負
極吸収式の密閉形鉛蓄電池に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a negative electrode absorption type sealed lead acid battery used as an emergency power source for telecommunications and the like.
従来の技術 従来この種の蓄電池の電槽には強化AS,ABS等の比較的剛
性の高い合成樹脂が採用されてきたが、これらの樹脂で
は使用中に電槽壁等から水分の透過〔阿久戸，市村「小
形シール鉛蓄電池の長寿命化」電子通信学会技術報告84
-35（1984）〕が多く、長期使用においては、この水分
透過による減液が蓄電池の寿命を決定することがあっ
た。Conventional technology Conventionally, synthetic resins such as reinforced AS and ABS with relatively high rigidity have been used for the battery case of this type of storage battery, but with these resins, water permeation from the battery wall during use (Akuto , Ichimura "Extending the Life of Small Sealed Lead Acid Battery" IEICE Technical Report 84
-35 (1984)], and in the long-term use, the liquid reduction due to the permeation of water may determine the life of the storage battery.
この解決策としてAS,ABSに比較し水分透過が非常に少な
く、入手が容易でコストも安価なポリプロピレンを使用
したが、負極吸収式密閉形鉛蓄電池は液式電池（JISC 8
704に規定された鉛蓄電池、以下液式と称す）と異な
り、常時大気圧に対して大きな圧力差があるため、電槽
やふたの膨れ、へこみ等のたわみが多く、外観、配列等
に種々の問題がある。As a solution to this problem, we used polypropylene, which has much less water permeation than AS and ABS, is easy to obtain, and is inexpensive, but the negative electrode absorption sealed lead-acid battery is a liquid battery (JIS C 8
Unlike lead-acid batteries stipulated in 704, hereinafter referred to as liquid type), since there is always a large pressure difference with respect to atmospheric pressure, there are many deflections such as swelling and dents of the battery case and lid, and there are various appearances and arrangements. I have a problem.
発明が解決しようとする問題点 このようにポリプロピレンを電槽，ふたに使用する場
合、ABSのように剛性を向上させるためタルク等のフィ
ラーを添加することがあるが、熱溶着強度が低下した
り、高温になれば大幅に曲げ弾性率が低下し、フィラー
を添加しないものとの差がほとんどなくなり、電槽やふ
たのたわみを起こすという問題点があった。ただし強度
を向上させるためには、厚さを増すことで対応できる
が、樹脂量、成形工数といった経済性およびコンパクト
設計という面を考慮した場合得策ではない。この電槽の
たわみは外観上の問題だけではとどまらず、使用中に内
圧が上昇した場合、群圧が低下し、極板とセパレータと
の密着が不完全となって電解液の受授が困難になるた
め、ハイレート放電では大幅な特性低下を示すこととな
る。また、充電中であれば負極板の露出面積が増加し、
ガス吸収の増大に伴ない充電電流が増加して正極格子の
腐食を促進し、寿命を短縮するという問題もあった。Problems to be Solved by the Invention When polypropylene is used in the battery case and lid as described above, a filler such as talc may be added to improve rigidity like ABS, but the heat-welding strength may decrease. However, at high temperatures, the flexural modulus is significantly reduced, and there is almost no difference between the flexural modulus and that without the filler, which causes the deflection of the battery case or lid. However, in order to improve the strength, it can be dealt with by increasing the thickness, but it is not a good idea when considering the economical efficiency such as the amount of resin and the number of molding steps and the aspect of compact design. Deflection of this battery case is not limited to appearance problems.If the internal pressure rises during use, the group pressure will drop, and the electrode plate and separator will not be in close contact, making it difficult to transfer the electrolyte solution. Therefore, the characteristics will be significantly deteriorated in the high rate discharge. In addition, the exposed area of the negative electrode plate increases during charging,
There is also a problem that the charging current increases with the increase in gas absorption, which promotes corrosion of the positive electrode grid and shortens the life.
本発明はこのような問題点を解決するもので、剛性の低
い熱可塑性樹脂を使用した場合に起こる電槽のたわみを
抑え、かつ電池特性の安定化を図り、減液による寿命短
縮を防止することを目的とするものである。The present invention solves such a problem, suppresses the deflection of the battery case that occurs when a low-rigidity thermoplastic resin is used, stabilizes the battery characteristics, and prevents the shortening of the service life due to liquid reduction. That is the purpose.
問題点を解決するための手段 この問題点を解決するために本発明は、曲げ弾性率が25
℃のときを基準にして40℃でその75％以下になる熱可塑
性樹脂よりなる電槽の、極板主面と平行な面に金属を封
入した合成樹脂製のリブを補強のために一体に設けたも
のである。Means for Solving the Problems In order to solve this problem, the present invention has a flexural modulus of 25.
Synthetic resin ribs with metal sealed on the surface parallel to the main surface of the electrode plate of the battery case made of thermoplastic resin that becomes 75% or less of that at 40 ° C based on the case of ℃ It is provided.
作用 この構成により、安価な熱可塑性樹脂を使用しても、水
分透過による減液がなく、かつ内圧変化による上記樹脂
のたわみ量の変動が減少するから、電槽のたわみを抑制
でき、ハイレート放電特性の低下、充電電流の増加等を
抑えて電池性能の安定化、長寿命化が図れ、また外観上
の問題も解消できる。Function With this configuration, even if an inexpensive thermoplastic resin is used, there is no liquid reduction due to water permeation and fluctuations in the resin deflection due to internal pressure changes are reduced, so the deflection of the battery case can be suppressed and high rate discharge It is possible to stabilize the battery performance and extend the life by suppressing the deterioration of the characteristics and the increase of the charging current, and it is also possible to solve the appearance problem.
実施例 以下、本発明の一実施例を図面に基づいて説明する。第
１図は本発明の一実施例による負極吸収式密閉形鉛蓄電
池であり、極板群が電池内部にすでに挿入されたものを
示す。Embodiment An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a negative electrode absorption type sealed lead acid battery according to an embodiment of the present invention, in which an electrode plate group is already inserted inside the battery.
第１図において、１は剛性が低くかつ温度依存性の高い
熱可塑性樹脂からなる電槽で、例えばポリプロピレン
（PP）で成形されており、この電槽１内には正極板3,負
極板4,セパレータ５で形成された極板群が挿入されてい
る。２は電槽１と同様にポリプロピレンよりなるふた
で、これは電槽１と熱溶着により一体化されており、上
ふた７の下部には安全弁（図示せず）が設けられてい
る。８は電槽１を補強するために側面に十字形に設けら
れた補強リブであり、これはあらかじめポリプロピレン
の内部に鉄芯９をインサート成型したものを、極板主面
と平行な電槽面（以下Ｗ面という）に熱溶着してなるも
のである。６は正負極端子である。In FIG. 1, reference numeral 1 denotes a battery case made of a thermoplastic resin having low rigidity and high temperature dependency, which is formed of, for example, polypropylene (PP). Inside the battery case 1, a positive electrode plate 3 and a negative electrode plate 4 are provided. Then, the electrode plate group formed by the separator 5 is inserted. 2 is a lid made of polypropylene like the battery case 1, which is integrated with the battery container 1 by heat welding, and a safety valve (not shown) is provided at the bottom of the upper cover 7. Reference numeral 8 is a reinforcing rib provided in a cross shape on the side surface to reinforce the battery case 1. This is made by inserting and molding an iron core 9 inside polypropylene in advance, and a battery surface parallel to the main surface of the electrode plate. (Hereinafter referred to as W surface) is heat-welded. Reference numeral 6 is a positive and negative electrode terminal.
次にこの電池の試験結果のうち内圧対たわみ量特性を第
２図に示す。第２図のａ曲線は本実施例のたわみ量を、
ｂ曲線は補強リブを使用しない従来例のたわみ量を示
し、それぞれ同一の電池（12V,36Ah）を使用した。ポリ
プロピレン製の電槽Ｗ面の寸法は150mm×160mm,厚さは
2.5mmである。一方、補強リブ８は断面寸法が7mm×2mm
の鋼鉄板を肉厚2mmのポリプロピレン樹脂で覆ったもの
で溶着により一体化してある。Next, of the test results of this battery, the internal pressure vs. deflection amount characteristic is shown in FIG. The curve a in FIG. 2 shows the deflection amount of this embodiment,
Curve b shows the amount of deflection of the conventional example without using the reinforcing rib, and the same battery (12V, 36Ah) was used for each. The dimensions of the polypropylene battery case W surface are 150 mm × 160 mm, and the thickness is
It is 2.5 mm. On the other hand, the reinforcing rib 8 has a cross-sectional dimension of 7 mm x 2 mm.
Steel plate covered with 2 mm thick polypropylene resin is integrated by welding.
ところで、平板の場合のたわみ量は次式で表わすことが
できる。By the way, the amount of deflection in the case of a flat plate can be expressed by the following equation.
Wmax:たわみ量 E:弾性係数 t:厚さ P:荷重 D:曲げ剛性（曲げ弾性率） ν：ポアソン比 a,b:辺の長さ K1:b/aで決まる数値 温度変化による曲げ弾性率の低下に対して、25℃のとき
の値を基準にしてその75％程度までは電槽の厚さをわず
かに増すだけで対処でき、経済性を損なうことなく強度
を向上させることができるが、これを割るものに対して
40℃を基準に設計した場合、25℃を基準にして設計した
ものと比較して経済性が低下する。 Wmax: Deflection amount E: Elastic modulus t: Thickness P: Load D: Flexural rigidity (flexural modulus) ν: Poisson's ratio a, b: Side length K 1 : Numerical value determined by b / a Flexural elasticity due to temperature change With respect to the decrease in the rate, up to about 75% of the value at 25 ° C can be dealt with by slightly increasing the thickness of the battery case, and the strength can be improved without impairing economic efficiency. But for what breaks this
When designed based on 40 ° C, the economic efficiency is lower than that based on 25 ° C.
一般に曲げ弾性率Ｄ（kg/cm2）は 25℃ 40℃ ABS 26,500 22,000 PP 17,000 8,000 で、ポリプロピレン（PP）樹脂では温度変化が大きくな
っており、40℃のときの曲げ弾性率は25℃のときの75％
を割っている。Generally, the flexural modulus D (kg / cm 2 ) is 25 ℃ 40 ℃ ABS 26,500 22,000 PP 17,000 8,000, and polypropylene (PP) resin shows a large temperature change, and the flexural modulus at 40 ℃ is 25 ℃. 75% of when
Is breaking.
本発明は、実施例に示すように、電槽Ｗ面に補強リブを
採用することにより、内圧変化によるたわみ量の変動を
軽減できるもので、特に、曲げ弾性率が25℃を基準にし
て40℃で75％以下に低下するポリプロピレン樹脂等に対
して有効であり、これにより25℃を基準にして設計する
ことができ、経済性に優れた電池が得られる。According to the present invention, as shown in the examples, by adopting a reinforcing rib on the surface of the battery case W, it is possible to reduce the variation in the amount of deflection due to the change in the internal pressure. It is effective for polypropylene resin and the like that decreases to 75% or less at ℃, and by doing so, it is possible to design based on 25 ℃ and obtain a battery with excellent economical efficiency.
次に60℃の定電圧寿命試験を行った結果を第３図に示
す。ａ曲線とｂ曲線はそれぞれ第２図と同様に本実施例
のものと従来例のものを示し、それぞれ同一電池（12V,
36Ah）を使用した。IC容量とは、25℃において36Aの放
電電流で終止電圧9.6Vまで放電したときの放電容量であ
り、初期値100に対する増減をそれぞれの場合について
示している。一方、充電電流については60℃で充電電圧
2.25V/セルの場合の充電電流を初期値との比率で示し
た。図から明らかなように補強リブを設けたことによ
り、使用中に内圧が上昇しても、ハイレート放電特性の
低下や充電電流の増加を抑えることができる。Next, FIG. 3 shows the result of a constant voltage life test at 60 ° C. The a curve and the b curve respectively show those of this embodiment and the conventional example as in FIG. 2, and show the same battery (12 V,
36Ah) was used. The IC capacity is the discharge capacity when discharged at a final voltage of 9.6 V at a discharge current of 36 A at 25 ° C., and shows the increase / decrease with respect to the initial value 100 in each case. On the other hand, the charging current is 60 ° C
The charging current in the case of 2.25V / cell is shown as a ratio with the initial value. As is clear from the figure, by providing the reinforcing ribs, even if the internal pressure rises during use, it is possible to suppress the deterioration of the high rate discharge characteristic and the increase of the charging current.
このように本実施例では、長期に使用しても減液のない
状態で電池特性を安定にでき、長寿命を保持できる。ま
た、たわみが抑えられるから、外観及び設置上の問題点
を解消でき、かつ経済性の良い電池が製造できる。As described above, in this embodiment, the battery characteristics can be stabilized and the long life can be maintained even when the liquid is used for a long period of time without liquid reduction. Further, since the deflection is suppressed, problems in appearance and installation can be solved, and a battery with good economy can be manufactured.
発明の効果 以上のように本発明によれば、熱可塑性樹脂よりなる電
槽に金属を封入した補強のためのリブを設けたので、長
期に渡って一定の外観を保持でき、電槽の水透過率を小
さくして電解液の減少を防止するとともに電槽のたわみ
やふくれを防止することができ、電池特性の安定化、長
寿命化を図ることができる。EFFECTS OF THE INVENTION As described above, according to the present invention, since a rib for reinforcement in which a metal is enclosed is provided in a battery case made of a thermoplastic resin, a constant appearance can be maintained for a long period of time, and the water in the battery case can be maintained. The transmittance can be reduced to prevent the decrease of the electrolytic solution, and also to prevent the battery case from being bent or blistered, so that the battery characteristics can be stabilized and the service life can be extended.
【図面の簡単な説明】 第１図は本発明の一実施例の負極吸収式密閉形鉛蓄電池
を示す外観図、第２図は本実施例と従来例の内圧対たわ
み量の関係を示す特性図、第３図は寿命試験経過を示す
特性図である。 １……電槽、２……ふた、８……補強リブ、９……鉄芯
（金属）BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an external view showing a negative electrode absorption type sealed lead-acid battery of one embodiment of the present invention, and FIG. 2 is a characteristic showing the relationship between the internal pressure and the amount of deflection of this embodiment and a conventional example. FIG. 3 and FIG. 3 are characteristic diagrams showing the progress of the life test. 1 ... Battery case, 2 ... Lid, 8 ... Reinforcing rib, 9 ... Iron core (metal)
───────────────────────────────────────────────────── フロントページの続き (72)発明者 ▲桑▼原 外男 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 尾崎 隆生 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (56)参考文献 特開 昭60−172163（ＪＰ，Ａ) 特開 昭60−159037（ＪＰ，Ａ) 実開 昭60−123866（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor ▲ Soto Kuwahara Osaka Prefecture Kadoma City 1006 Kadoma Matsushita Electric Industrial Co., Ltd. (72) Inventor Takao Ozaki Osaka Kadoma City Kadoma 1006 Matsushita Electric Industrial Incorporated (56) References JP-A-60-172163 (JP, A) JP-A-60-159037 (JP, A) Actual development Sho-60-123866 (JP, U)
Claims (1)
でその75％以下になる熱可塑性樹脂よりなる電槽の極板
と平行な面に、金属を内部に封入した補強のための樹脂
製リブを一体に設けた負極吸収式密閉形鉛蓄電池。1. A bending elastic modulus of 40 ° C. based on the case of 25 ° C.
Negative electrode absorption type sealed lead acid battery in which a resin rib for encapsulating metal is integrally provided on the surface parallel to the electrode plate of the battery case made of thermoplastic resin of which 75% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60256112A JPH0719590B2 (en) | 1985-11-14 | 1985-11-14 | Negative electrode absorption type sealed lead acid battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60256112A JPH0719590B2 (en) | 1985-11-14 | 1985-11-14 | Negative electrode absorption type sealed lead acid battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62115647A JPS62115647A (en) | 1987-05-27 |
| JPH0719590B2 true JPH0719590B2 (en) | 1995-03-06 |
Family
ID=17288059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60256112A Expired - Lifetime JPH0719590B2 (en) | 1985-11-14 | 1985-11-14 | Negative electrode absorption type sealed lead acid battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0719590B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0378962A (en) * | 1989-08-22 | 1991-04-04 | Yuasa Battery Co Ltd | Manufacture of sealed type lead-acid battery |
| JPH0381951A (en) * | 1989-08-25 | 1991-04-08 | Matsushita Electric Ind Co Ltd | Lead-acid battery |
| US20040137321A1 (en) * | 2002-11-27 | 2004-07-15 | Jean-Francois Savaria | Casing for an energy storage device |
| JP5551054B2 (en) * | 2010-12-08 | 2014-07-16 | 古河電池株式会社 | Lead acid battery |
| JP5981881B2 (en) * | 2013-05-31 | 2016-08-31 | 古河電池株式会社 | Battery system |
| DE102015203952A1 (en) | 2014-12-19 | 2016-06-23 | Volkswagen Aktiengesellschaft | Battery housing part for a traction battery of an electric or hybrid vehicle and battery case |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60123866U (en) * | 1984-01-25 | 1985-08-21 | 松下電器産業株式会社 | sealed lead acid battery |
| JPS60172163A (en) * | 1984-02-18 | 1985-09-05 | Yuasa Battery Co Ltd | Storage battery |
-
1985
- 1985-11-14 JP JP60256112A patent/JPH0719590B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62115647A (en) | 1987-05-27 |
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