JP2003297326A - Roll-like separator for battery - Google Patents
Roll-like separator for batteryInfo
- Publication number
- JP2003297326A JP2003297326A JP2002098065A JP2002098065A JP2003297326A JP 2003297326 A JP2003297326 A JP 2003297326A JP 2002098065 A JP2002098065 A JP 2002098065A JP 2002098065 A JP2002098065 A JP 2002098065A JP 2003297326 A JP2003297326 A JP 2003297326A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- separator
- core
- winding
- winding core
- 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.)
- Withdrawn
Links
- 238000004804 winding Methods 0.000 claims abstract description 54
- 238000000034 method Methods 0.000 abstract description 6
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 210000002105 tongue Anatomy 0.000 description 27
- 239000002390 adhesive tape Substances 0.000 description 12
- 239000004698 Polyethylene Substances 0.000 description 3
- 238000004806 packaging method and process Methods 0.000 description 3
- -1 polyethylene Polymers 0.000 description 3
- 229920000573 polyethylene Polymers 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000005662 Paraffin oil Substances 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 231100000989 no adverse effect Toxicity 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 238000012858 packaging process Methods 0.000 description 1
- 229920013716 polyethylene resin Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
Classifications
-
- 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
- Cell Separators (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】本発明は、巻芯に巻回保持される電池用ロ
ール状セパレータに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery roll-shaped separator wound around a winding core.
【０００２】[0002]
【従来の技術】従来、このような電池用ロール状セパレ
ータを製造するには、長尺のセパレータシートの一端を
直接巻芯表面に粘着テープ等で貼り付け固定し、巻芯に
巻回保持するようにしていた。2. Description of the Related Art Conventionally, in order to manufacture such a roll-shaped separator for a battery, one end of a long separator sheet is directly attached and fixed to the surface of a winding core with an adhesive tape or the like, and is held around the winding core. Was doing.
【０００３】[0003]
【発明が解決しようとする課題】このように製造された
電池用ロール状セパレータは、電池組立工程において、
セパレータシートを巻き戻しされながら連続使用される
が、シートの終端（巻き開始端）に到達した際、次のよ
うな不具合が発生する。つまり、該終端は上記したよう
に巻芯に粘着テープで貼り付け固定されているが、粘着
テープによる巻芯への固定力が強過ぎると、終端まで巻
き戻した際にシートに異常な張力がかかり終端部近傍の
シートを傷め変形や破損を発生させてしまい、逆に、巻
芯への固定力が弱過ぎると、前記張力により巻芯から粘
着テープが外れ粘着テープはセパレータシート側に付随
していき結果として製品セパレータ中に混入されてしま
う。前者のように、セパレータシートに変形や破損が生
じた場合には、次のような不具合がある。例えば、鉛蓄
電池組立工程では、セパレータは極板を包装する形で袋
状に加工されて使用される。この包装加工では、セパレ
ータシートは半自動又は自動の包装加工機で包装に適し
た寸法にカットされた後、折り曲げられてその両側縁部
をシール加工されるが、セパレータシートに変形や破損
があると、良好な包装加工がなされず、袋から極板が露
出することになり、結果として電池組立時に極板同士が
接触してショート（電気的短絡）を起こすことになる。
一方、後者のように、粘着テープが製品セパレータ中に
混入された場合には、次のような不具合がある。つま
り、粘着テープがセパレータに付随したまま電池内に組
み込まれることになるので、鉛蓄電池の電解液である希
硫酸又は電池使用時に発生する酸素によりテープ基材及
び粘着成分が劣化、溶出し、電池性能に悪影響を及ぼす
懸念がある。The roll-shaped separator for a battery manufactured as described above is used in the battery assembly process.
Although the separator sheet is continuously used while being rewound, the following problems occur when the end (winding start end) of the sheet is reached. In other words, the end is attached and fixed to the core with the adhesive tape as described above. However, if the force of fixing the adhesive tape to the core is too strong, abnormal tension will be applied to the sheet when rewound to the end. On the contrary, if the fixing force to the core is too weak, the adhesive tape will come off from the core due to the tension and the adhesive tape will be attached to the separator sheet side. As a result, they are mixed in the product separator. When the separator sheet is deformed or damaged as in the former case, there are the following problems. For example, in a lead storage battery assembling process, the separator is used after being processed into a bag shape to wrap the electrode plate. In this packaging process, the separator sheet is cut into a size suitable for packaging by a semi-automatic or automatic packaging machine, then folded and sealed on both side edges, but if the separator sheet is deformed or damaged. However, good packaging is not performed, and the electrode plates are exposed from the bag, and as a result, the electrode plates come into contact with each other during battery assembly to cause a short circuit (electrical short circuit).
On the other hand, when the adhesive tape is mixed in the product separator as in the latter case, there are the following problems. That is, since the adhesive tape is incorporated into the battery while being attached to the separator, the tape base material and the adhesive component are deteriorated and eluted by dilute sulfuric acid which is the electrolytic solution of the lead acid battery or oxygen generated when the battery is used. There is concern that performance may be adversely affected.
【０００４】[0004]
【課題を解決するための手段】そこで、本発明の電池用
ロール状セパレータはかかる課題を解決すべく、請求項
１に記載の通り、巻芯に巻回された長尺の電池用セパレ
ータの始端が、前記巻芯表面に設けられた舌片と前記巻
芯との間に挟持固定されていることを特徴とする。ま
た、請求項２に記載の電池用ロール状セパレータは、請
求項１記載の電池用ロール状セパレータにおいて、前記
舌片は、前記巻芯表面を始端として前記長尺の電池用セ
パレータの巻回方向に延設され、前記舌片の長さは、前
記巻芯外周の長さの１/１０以上かつ巻芯の外周の長さ
以下とすることを特徴とする。Therefore, in order to solve such a problem, the roll-shaped separator for a battery according to the present invention has a starting end of a long battery separator wound around a winding core as described in claim 1. Is sandwiched and fixed between a tongue piece provided on the surface of the winding core and the winding core. The roll-shaped separator for a battery according to claim 2 is the roll-shaped separator for a battery according to claim 1, wherein the tongue piece is a winding direction of the long battery separator with the winding core surface as a starting end. The length of the tongue piece is not less than 1/10 of the length of the outer circumference of the winding core and not more than the length of the outer circumference of the winding core.
【０００５】[0005]
【発明の実施の形態】本発明の電池用ロール状セパレー
タは、巻芯に巻回された長尺の電池用セパレータの始端
が、前記巻芯表面に設けられた舌片と前記巻芯との間に
挟持固定されていることを特徴とするものである。前記
舌片は、電池組立工程での連続的な巻戻し時に、電池用
セパレータシートの巻戻し終端部（巻回始端部）に異常
な張力等の負荷がかからないように、電池用セパレータ
の巻回始端が、舌片と巻芯表面との間に挟持できる構成
のものであれば特に限定されるものではなく、例えば、
舌片を巻芯の両端部に接着剤等により固定する構成とす
ることもできるが、舌片の始端を巻芯表面の軸方向に接
着又は圧着するような構成とすることが好ましい。ま
た、前記舌片は、電池用セパレータシート片（製品シー
ト片）を使用することもできる。ただし、電池セパレー
タシートがその一方の面に長手方向に沿って延びる複数
条のリブを有する場合には、次のようにするのがよい。
通常、このようなリブ付きセパレータシートの場合で
は、リブ面が表向きとなるように巻芯に巻回されるので
あるが、これと同じリブ付きセパレータシート片を舌片
に使用する時には、舌片とセパレータシートとの摩擦力
を考慮し、リブ付きシートである舌片もリブ面を表向き
にして巻芯表面に固定するのがよい。つまり、リブ付き
シートである舌片のリブ面を裏向きにして固定した場合
では、セパレータシートの一端を舌片の下側に挿し込ん
だ時、舌片とセパレータシートとは互いのリブ面同士が
当接する形となり両者のリブ部同士のみの接触となるの
で、両者の接触面積は著しく小さくなり良好な摩擦力が
得られないことになる。よって、セパレータシートの巻
回開始時にセパレータシートが外れ易くなり、セパレー
タシートの巻回作業性が落ちる。尚、電池用セパレータ
に設けられる複数条のリブは、セパレータが組み込まれ
る電池の種類によって異なるが、一般的には、幅０．３
〜１．５ｍｍ、高さ０．３〜１．５ｍｍで、幅方向に約
１０ｍｍ間隔に形成されるものである。また、舌片の長
さについては、巻芯外周の長さの１/１０以上かつ巻芯
の外周の長さ以下であることが好ましい。これは、舌片
の長さが巻芯の外周の１/１０未満の長さであると、電
池用セパレータシートが舌片により挟持される力が弱く
なり、電池用セパレータの巻回開始時に電池用セパレー
タが外れ易くなるからである。尚、巻回開始時に電池用
セパレータシートの始端が外れないよううまく挟持出来
さえすれば、連続的な巻回をスタートさせた後は、前記
始端の挟持部には、シートの巻き張力に伴う巻き圧力が
上部から強くかけられるので、始端が容易に外れるよう
なことはない。また、舌片の長さが巻芯の外周を超える
長さであると、舌片と巻芯との間に電池用セパレータを
挟持する作業がやりにくくなり、時間がかかるので好ま
しくない。尚、巻芯表面に固定する舌片の幅は特に限定
するものではないが、巻回される電池用セパレータの幅
が１００〜２００ｍｍの場合には、５０ｍｍ以上かつセ
パレータの幅以下であることが好ましい。これは、舌片
の幅が５０ｍｍ未満であると、電池セパレータシートが
舌片により挟持される力が弱くなり、電池用セパレータ
の巻回開始時に電池用セパレータが外れ易くなるからで
ある。また、舌片の幅が巻芯の幅を超えると、巻回が終
わった電池用ロール状セパレータのロール端部から舌片
がはみ出すことになり、外観上、保管上、使い易さの点
から好ましくない。BEST MODE FOR CARRYING OUT THE INVENTION A roll-shaped separator for a battery of the present invention comprises a tongue piece provided on the surface of the winding core and the winding core, the starting end of a long battery separator wound around the winding core. It is characterized by being sandwiched and fixed between them. The tongue is used for winding the battery separator so as not to apply abnormal tension or the like to the rewinding terminal end (winding starting end) of the battery separator sheet during continuous rewinding in the battery assembly process. The starting end is not particularly limited as long as it has a structure capable of being sandwiched between the tongue piece and the surface of the winding core.
The tongue piece may be fixed to both ends of the winding core with an adhesive agent or the like, but it is preferable that the starting end of the tongue piece is bonded or pressure-bonded in the axial direction of the winding core surface. Moreover, the said tongue piece can also use the separator sheet piece for batteries (product sheet piece). However, in the case where the battery separator sheet has a plurality of ribs extending along the longitudinal direction on one surface thereof, the following is preferable.
Usually, in the case of such a ribbed separator sheet, it is wound around the core so that the rib surface is face up.When using the same ribbed separator sheet piece as the tongue piece, the tongue piece is Considering the frictional force between the separator sheet and the separator sheet, it is preferable that the tongue, which is a ribbed sheet, is also fixed to the surface of the core with the rib surface facing upward. In other words, when the rib surface of the tongue piece that is a ribbed sheet is fixed with the rib surface facing down, when one end of the separator sheet is inserted under the tongue piece, the rib surface of the tongue piece and the separator sheet mutually Since the ribs come into contact with each other, only the rib portions of both of them come into contact with each other, so that the contact area between the two becomes remarkably small and a good friction force cannot be obtained. Therefore, the separator sheet is likely to come off at the start of winding the separator sheet, and the workability of winding the separator sheet is deteriorated. The plurality of ribs provided on the battery separator differ depending on the type of battery in which the separator is incorporated, but generally have a width of 0.3 mm.
.About.1.5 mm, height 0.3 to 1.5 mm, and formed at intervals of about 10 mm in the width direction. The length of the tongue piece is preferably 1/10 or more of the length of the outer circumference of the winding core and less than or equal to the length of the outer circumference of the winding core. This is because when the length of the tongue is less than 1/10 of the outer circumference of the winding core, the force with which the battery separator sheet is sandwiched between the tongues becomes weak, and the battery separator sheet is wound at the start of winding. This is because the separator for use becomes easy to come off. As long as the start end of the battery separator sheet can be properly sandwiched at the start of winding, after the continuous winding is started, the sandwiching part at the start end is wound by the winding tension of the sheet. The pressure is strongly applied from the top, so the starting end does not come off easily. If the length of the tongue piece exceeds the outer circumference of the winding core, the work of sandwiching the battery separator between the tongue piece and the winding core becomes difficult, which is time-consuming, which is not preferable. The width of the tongue fixed to the surface of the winding core is not particularly limited, but when the width of the wound battery separator is 100 to 200 mm, it may be 50 mm or more and not more than the width of the separator. preferable. This is because if the width of the tongue piece is less than 50 mm, the force with which the battery separator sheet is sandwiched by the tongue pieces becomes weak, and the battery separator is likely to come off when the winding of the battery separator is started. Also, when the width of the tongue exceeds the width of the winding core, the tongue sticks out from the roll end of the rolled separator for battery after winding, which is external, storage and easy to use. Not preferable.
【０００６】[0006]
【実施例】次に、本発明の実施例について、以下に詳述
する。表面がポリエチレンコートされたクラフト紙で構
成された、幅１７０ｍｍ、外径２７６ｍｍ、巻芯外周８
６７ｍｍの円筒状の巻芯の表面に、後記するポリエチレ
ン多孔質フィルム製の電池用セパレータシート片からな
る幅１００ｍｍ、長さ２００ｍｍ、厚さ０．２５ｍｍの
舌片の一端を粘着テープで固定し、舌片と巻芯間にポリ
エチレン多孔質フィルム製の幅１５０ｍｍ、長さ５０
ｍ、厚さ０．２５ｍｍの長尺の電池用セパレータシート
（主としてポリエチレン樹脂、無機粉体、パラフィン系
オイルからなる組成シート）を挟み込んで巻回し電池用
ロール状セパレータを作製した。この電池用ロール状セ
パレータを連続的に巻戻し使用して電池組立を行った
が、セパレータの巻戻し終端（巻回始端）が巻芯に直接
固定されずフリーであったことから、従来のような巻回
始端部を巻芯表面に直接固定した場合のように巻戻し終
端部（巻回始端部）に異常な張力等の負荷をかけるよう
なことがなく、終端部を巻芯から容易に外すことがで
き、結果として電池用セパレータに変形や破損を与え
ず、電池組立作業性の低下や電池ショートを生じさせる
ことがなく、電池組立を行うことが出来た。また、従来
のような巻回始端部を直接粘着テープ等により巻芯表面
に固定するようなことは行っていないので、誤って粘着
テープを電池用セパレータに付随させたまま電池中に混
入させてしまうようなこともなかった。EXAMPLES Examples of the present invention will be described in detail below. Width 170 mm, outer diameter 276 mm, core outer circumference 8 composed of polyethylene-coated kraft paper
On the surface of a 67 mm cylindrical winding core, one end of a tongue piece having a width of 100 mm, a length of 200 mm, and a thickness of 0.25 mm made of a polyethylene porous film battery separator sheet described below was fixed with an adhesive tape, Width 150 mm, length 50 made of polyethylene porous film between tongue and core
A long battery separator sheet having a thickness of m and a thickness of 0.25 mm (composition sheet mainly consisting of polyethylene resin, inorganic powder, and paraffin oil) was sandwiched and wound to produce a battery roll-shaped separator. A battery was assembled by continuously rewinding this roll separator for batteries, but because the end of rewinding (winding end) of the separator was not directly fixed to the core, The end of the winding can be easily removed from the winding core without applying an unusual load such as tension to the end of rewinding (starting end of winding) unlike when the winding start end is directly fixed to the surface of the winding core. As a result, the battery separator could be assembled without deforming or damaging the battery separator, lowering the workability of the battery assembly and causing a battery short circuit. In addition, it is not done to fix the winding start end directly to the surface of the winding core with an adhesive tape or the like, so it is possible to accidentally mix the adhesive tape with the battery separator into the battery. It didn't happen.
【０００７】[0007]
【発明の効果】上記の通り、本発明の電池用ロール状セ
パレータによれば、電池組立工程での連続的な巻戻し使
用時に、巻戻し終端部（巻回始端部）に異常な張力等の
負荷をかけることなく終端部を巻芯から外すことが可能
となるため、電池用セパレータに変形、破損を与えるこ
とがなく、電池組立作業性を低下させないと共に、電池
をショートさせることがない。また、巻回始端部を粘着
テープ等によって巻芯に固定するものではないので、電
池組立工程において誤って該粘着テープを電池用セパレ
ータに付随させたまま電池中に混入させてしまい、電池
性能に悪影響を与えるようなこともない。As described above, according to the roll-shaped separator for a battery of the present invention, when the continuous rewinding is used in the battery assembling process, an abnormal tension or the like is generated at the rewinding end (winding start end). Since the terminal end can be removed from the winding core without applying a load, the battery separator is not deformed or damaged, the battery assembling workability is not deteriorated, and the battery is not short-circuited. Further, since the winding start end is not fixed to the core with an adhesive tape or the like, the adhesive tape is erroneously mixed in the battery while being attached to the battery separator in the battery assembling process, and battery performance is improved. There is no adverse effect.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 杉野 豊 岐阜県不破郡垂井町630 日本無機株式会 社垂井工場内 (72)発明者 平島 敬 岐阜県不破郡垂井町630 日本無機株式会 社垂井工場内 (72)発明者 和田 忠正 岐阜県不破郡垂井町630 日本無機株式会 社垂井工場内 Ｆターム(参考） 5H021 BB04 BB17 CC17 HH01 HH03 5H028 AA05 BB08 CC13 HH01 HH06 ─────────────────────────────────────────────────── ─── Continued front page (72) Inventor Yutaka Sugino 630 Tarui-cho, Fuwa-gun, Gifu Japan Inorganic Stock Association Inside the company Tarui factory (72) Inventor Kei Hirashima 630 Tarui-cho, Fuwa-gun, Gifu Japan Inorganic Stock Association Inside the company Tarui factory (72) Inventor Tadamasa Wada 630 Tarui-cho, Fuwa-gun, Gifu Japan Inorganic Stock Association Inside the company Tarui factory F term (reference) 5H021 BB04 BB17 CC17 HH01 HH03 5H028 AA05 BB08 CC13 HH01 HH06
Claims (2)
タの始端が、前記巻芯表面に設けられた舌片と前記巻芯
との間に挟持固定されていることを特徴とする電池用ロ
ール状セパレータ。1. A starting end of a long battery separator wound around a winding core is sandwiched and fixed between a tongue piece provided on the surface of the winding core and the winding core. Roll-shaped separator for batteries.
前記長尺の電池用セパレータの巻回方向に延設され、前
記舌片の長さは、前記巻芯外周の長さの１/１０以上か
つ巻芯の外周の長さ以下とすることを特徴とする請求項
１記載の電池用ロール状セパレータ。2. The tongue piece is extended in the winding direction of the elongated battery separator with the surface of the winding core as a starting end, and the length of the tongue piece is 1 of the length of the outer circumference of the winding core. The roll-shaped separator for a battery according to claim 1, wherein the roll-shaped separator is / 10 or more and not more than the length of the outer circumference of the winding core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2002098065A JP2003297326A (en) | 2002-03-29 | 2002-03-29 | Roll-like separator for battery |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2002098065A JP2003297326A (en) | 2002-03-29 | 2002-03-29 | Roll-like separator for battery |
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| JP2003297326A true JP2003297326A (en) | 2003-10-17 |
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| JP2002098065A Withdrawn JP2003297326A (en) | 2002-03-29 | 2002-03-29 | Roll-like separator for battery |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009252503A (en) * | 2008-04-04 | 2009-10-29 | Toyota Motor Corp | Wound-around battery and manufacturing method of wound-around battery |
| JP2011076862A (en) * | 2009-09-30 | 2011-04-14 | Gs Yuasa Corp | Winding-type battery, and manufacturing method for power generation body of winding-type battery |
| WO2011148866A1 (en) * | 2010-05-26 | 2011-12-01 | 株式会社Ｇｓユアサ | Battery |
-
2002
- 2002-03-29 JP JP2002098065A patent/JP2003297326A/en not_active Withdrawn
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009252503A (en) * | 2008-04-04 | 2009-10-29 | Toyota Motor Corp | Wound-around battery and manufacturing method of wound-around battery |
| US8211561B2 (en) | 2008-04-04 | 2012-07-03 | Toyota Jidosha Kabushiki Kaisha | Winding type battery and method for manufacturing the winding type battery |
| JP2011076862A (en) * | 2009-09-30 | 2011-04-14 | Gs Yuasa Corp | Winding-type battery, and manufacturing method for power generation body of winding-type battery |
| WO2011148866A1 (en) * | 2010-05-26 | 2011-12-01 | 株式会社Ｇｓユアサ | Battery |
| CN102893439A (en) * | 2010-05-26 | 2013-01-23 | 株式会社杰士汤浅国际 | Battery |
| US8956748B2 (en) | 2010-05-26 | 2015-02-17 | Gs Yuasa International Ltd. | Battery |
| JP5737289B2 (en) * | 2010-05-26 | 2015-06-17 | 株式会社Ｇｓユアサ | battery |
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