JP2013093209A - Lead acid storage battery - Google Patents
Lead acid storage battery Download PDFInfo
- Publication number
- JP2013093209A JP2013093209A JP2011234523A JP2011234523A JP2013093209A JP 2013093209 A JP2013093209 A JP 2013093209A JP 2011234523 A JP2011234523 A JP 2011234523A JP 2011234523 A JP2011234523 A JP 2011234523A JP 2013093209 A JP2013093209 A JP 2013093209A
- Authority
- JP
- Japan
- Prior art keywords
- plate
- electrode plate
- electrode
- expansion
- main body
- 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.)
- Pending
Links
- 239000002253 acid Substances 0.000 title claims abstract description 16
- 238000010521 absorption reaction Methods 0.000 claims abstract description 16
- 239000004033 plastic Substances 0.000 claims description 15
- 230000008961 swelling Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 230000005489 elastic deformation Effects 0.000 claims description 5
- 230000009466 transformation Effects 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 9
- 229920005989 resin Polymers 0.000 description 5
- 239000011347 resin Substances 0.000 description 5
- 229920003002 synthetic resin Polymers 0.000 description 4
- 239000000057 synthetic resin Substances 0.000 description 4
- 238000003466 welding Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 229920001971 elastomer Polymers 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000006260 foam Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 229920001821 foam rubber Polymers 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001131 transforming effect Effects 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)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
本発明は、鉛畜電池に関するものである。 The present invention relates to a lead live battery.
従来の鉛畜電池としては、特許文献１に示すように、電槽とこの電槽内に収容される極板群を有する鉛蓄電池において、極板群を構成する正極板、セパレータ及び負極板を水平方向に積層するとともに、それらを樹脂によって電槽に接着して固定したものがある。また、特許文献２に示すように、極板群を構成する正極板、セパレータ及び負極板の下端を連結部に溶着して連結したものがある。なお、この連結部は、電槽の底面に固定されている。これらの構成により、正極板、セパレータ及び負極板が電槽に対して位置決め固定されて、耐振性に優れた鉛蓄電池とすることができる。 As a conventional lead-acid battery, as shown in Patent Document 1, in a lead storage battery having a battery case and an electrode plate group accommodated in the battery case, a positive electrode plate, a separator and a negative electrode plate constituting the electrode plate group are provided. There are some which are laminated in the horizontal direction and bonded and fixed to the battery case with resin. Moreover, as shown in Patent Document 2, there is one in which the lower ends of the positive electrode plate, the separator, and the negative electrode plate constituting the electrode plate group are welded and connected to a connecting portion. In addition, this connection part is being fixed to the bottom face of a battery case. With these configurations, the positive electrode plate, the separator, and the negative electrode plate are positioned and fixed with respect to the battery case, and a lead storage battery having excellent vibration resistance can be obtained.
上記の構成では、極板群を構成する正極板、セパレータ及び負極板を、樹脂や連結部によって電槽に固定しているので、正極板及び負極板が極板の積層方向だけでなく、極板の積層方向に直交する平面方向においても電槽に対して固定されてしまう。 In the above configuration, since the positive electrode plate, the separator, and the negative electrode plate constituting the electrode plate group are fixed to the battery case by the resin or the connecting portion, the positive electrode plate and the negative electrode plate are not only stacked in the electrode plate direction, Even in the plane direction perpendicular to the stacking direction of the plates, it is fixed to the battery case.
しかしながら、極板群を構成する正極板及び負極板は、充放電反応時の体積変化及び正極板の腐食に伴い、鉛直及び水平方向の膨張することから、正極板及び負極板が電槽を内側から圧迫して当該電槽が破損する恐れがある。また、正極板及び負極板の鉛直及び水平方向の膨張によりそれら極板が電槽から受ける反力により破損する又は極板に接続されたストラップ等が破損する恐れがある。上記の正極板及び負極板の膨張による電槽の破損について詳述すると、まず正極板及び負極板が鉛直方向に膨張する。この鉛直方向の膨張が最大まで達した後、それ以上鉛直方向に膨張できず、正極板及び負極板は水平方向に膨張する。その結果、正極板及び負極板が鉛直方向及び水平方向に向かって電槽を内側から圧迫し、これにより電槽が破損する。 However, the positive electrode plate and the negative electrode plate constituting the electrode plate group expand in the vertical and horizontal directions due to the volume change during the charge / discharge reaction and the corrosion of the positive electrode plate. There is a risk of damaging the battery case. Further, the vertical and horizontal expansions of the positive electrode plate and the negative electrode plate may damage the electrode plates due to the reaction force received from the battery case, or the straps connected to the electrode plates may be damaged. The battery case damage due to the expansion of the positive electrode plate and the negative electrode plate will be described in detail. First, the positive electrode plate and the negative electrode plate expand in the vertical direction. After this vertical expansion reaches the maximum, it cannot expand further in the vertical direction, and the positive electrode plate and the negative electrode plate expand in the horizontal direction. As a result, the positive electrode plate and the negative electrode plate press the battery case from the inside in the vertical direction and the horizontal direction, and thereby the battery case is damaged.
また、例えば極板高さが２００ｍｍ以上の極板を有する極板群を電槽内に収容して構成される高形の鉛蓄電池では、極板高さが高くなるに連れて正極板及び負極板の位置決めが難しくなり、また、正極板及び負極板の高さ方向（鉛直方向）の膨張分が大きくなり電槽等の極板群周りの部材又は極板自体の破損を起こし易くなる。 Further, for example, in a high-type lead storage battery configured by housing a plate group having a plate plate having a plate height of 200 mm or more in a battery case, as the plate height increases, the positive electrode plate and the negative electrode Positioning of the plate becomes difficult, and the amount of expansion in the height direction (vertical direction) of the positive electrode plate and the negative electrode plate is increased, and the members around the electrode plate group such as the battery case or the electrode plate itself are easily damaged.
そこで本発明は、上記問題点を解決すべくなされたものであり、極板群における極板間の位置ずれを防止するとともに、当該極板の鉛直方向の膨張による電槽等の極板群周りの部材又は極板自体の破損を防止することをその主たる所期課題とするものである。 Therefore, the present invention has been made to solve the above-described problems, and prevents misalignment between the plates in the plate group, and around the plate group such as a battery case due to the vertical expansion of the plate. The main purpose of the present invention is to prevent damage to the member or the electrode plate itself.
すなわち本発明に係る鉛畜電池は、電槽内に収容された極板群と前記電槽の底面との間に介在して設けられ、前記極板群における極板間の距離を保持するアンカープレートを備え、前記アンカープレートが、前記極板の鉛直方向の膨張を吸収する膨張吸収構造を有することを特徴とする。 That is, the lead acid battery according to the present invention is provided between the electrode plate group housed in the battery case and the bottom surface of the battery case, and is an anchor that maintains the distance between the electrode plates in the electrode plate group. A plate is provided, and the anchor plate has an expansion absorbing structure that absorbs expansion in the vertical direction of the electrode plate.
このようなものであれば、極板間の距離を保持するアンカープレートを配置しているので、極板群を電槽内に配置した後に、当該電槽内で極板群を構成するセパレータ及び極板群の位置ずれを防止することができる。また、アンカープレートが膨張吸収構造を備えているので、鉛蓄電池の使用により生じる極板の鉛直方向への膨張を吸収することができ、電槽等の極板群周りの部材又は極板自体の破損を防止することができる。本発明の効果は、例えば極板高さが２００ｍｍ以上の極板を有する極板群を備える鉛蓄電池において、その極板高さが高くなるに連れて顕著となる。 If it is such, since the anchor plate which maintains the distance between the electrode plates is arranged, after arranging the electrode plate group in the battery case, the separator constituting the electrode plate group in the battery case and The positional deviation of the electrode plate group can be prevented. In addition, since the anchor plate has an expansion absorption structure, it is possible to absorb the expansion in the vertical direction of the electrode plate caused by the use of the lead storage battery, and the members around the electrode plate group such as the battery case or the electrode plate itself Breakage can be prevented. The effect of the present invention becomes more prominent as the electrode plate height increases, for example, in a lead storage battery including an electrode plate group having electrode plates having an electrode plate height of 200 mm or more.
膨張吸収構造を有するアンカープレートの具体的な実施の態様としては、前記アンカープレートが、前記極板群の極板間の距離を保持するプレート本体と、前記プレート本体の下面と前記電槽の底面との間に設けられ、前記極板の鉛直方向の膨張を弾性変形により吸収する弾性体、又は、前記膨張を塑性変形により吸収する塑性変形体を備えることが望ましい。これならば、プレート本体を実質的に変形させることなく弾性体の弾性変形又は塑性変形体の塑性変形により確実に極板の膨張を吸収することができる。なお、プレート本体が実質的に変形しないことから極板とプレート本体との接着部位や溶着部位などの接続部位に過度の応力が掛からないようにして接続部位の破損を防止することができる。 As a concrete embodiment of the anchor plate having an expansion absorption structure, the anchor plate has a plate main body for maintaining a distance between the electrode plates of the electrode plate group, a lower surface of the plate main body, and a bottom surface of the battery case. And an elastic body that absorbs the expansion of the electrode plate in the vertical direction by elastic deformation, or a plastic deformation body that absorbs the expansion by plastic deformation. In this case, the expansion of the electrode plate can be reliably absorbed by elastic deformation of the elastic body or plastic deformation of the plastic deformation body without substantially deforming the plate body. In addition, since the plate body is not substantially deformed, it is possible to prevent the connection part from being damaged by preventing excessive stress from being applied to the connection part such as the adhesion part or the welding part between the electrode plate and the plate body.
また、前記アンカープレートが、前記極板群の極板間の距離を保持するプレート本体と、前記プレート本体の下面に設けられて前記プレート本体を支持する支持脚とを備え、前記プレート本体が撓むことにより前記極板の鉛直方向の膨張を吸収するものであることが望ましい。これならば、プレート本体と支持脚という簡単な構成により膨張吸収構造を有するアンカープレートを作製することができる。例えばプレート本体及び支持脚を樹脂製にする等により一体成形することができる。 The anchor plate includes a plate body that maintains a distance between the plates of the electrode plate group, and a support leg that is provided on a lower surface of the plate body and supports the plate body, and the plate body is bent. Therefore, it is desirable to absorb the expansion of the electrode plate in the vertical direction. If it is this, the anchor plate which has an expansion | swelling absorption structure can be produced with the simple structure of a plate main body and a support leg. For example, the plate body and the support legs can be integrally formed by using a resin or the like.
また、前記アンカープレートが、前記極板群の極板間の距離を保持するプレート本体と、前記プレート本体の下面に設けられて前記プレート本体を支持する支持脚とを備え、前記支持脚が前記極板の鉛直方向の膨張に伴い変形することにより前記極板の鉛直方向の膨張を吸収するものであることが望ましい。これならば、プレート本体を強固にしてプレート本体を実質的に変形しない構成として極板とプレート本体との接続部位の破損を防止しながらも、極板の鉛直方向の膨張を吸収することができる。 The anchor plate includes a plate main body that maintains a distance between the electrode plates of the electrode plate group, and a support leg that is provided on a lower surface of the plate main body and supports the plate main body. It is desirable that the electrode plate absorbs the vertical expansion of the electrode plate by being deformed with the expansion of the electrode plate in the vertical direction. If this is the case, the plate main body is strengthened and the plate main body is not substantially deformed to prevent damage to the connecting portion between the electrode plate and the plate main body, and the vertical expansion of the electrode plate can be absorbed. .
プレート本体の撓み又は支持脚の変形によって極板の膨張を吸収する構造では、そもそも極板群の重量に耐えられない、或いは極板群の重量により極板が膨張する前から撓み又は変形して膨張分を十分に吸収できなくなる等も考えられる。この場合には、前記プレート本体の下面と前記電槽の底面との間に前記プレート本体の変位に伴って変形する弾性体が設けられていることが望ましい。 In a structure that absorbs the expansion of the electrode plate by bending the plate body or by deforming the support legs, it cannot withstand the weight of the electrode plate group in the first place, or the electrode plate is bent or deformed before it expands due to the weight of the electrode plate group. It is also conceivable that the expansion cannot be sufficiently absorbed. In this case, it is desirable that an elastic body that deforms with the displacement of the plate body is provided between the lower surface of the plate body and the bottom surface of the battery case.
ここで、例えば極板高さが２００ｍｍ以上の極板を有する極板群を備える鉛蓄電池では、材料費の低減又は極板間の電気抵抗を下げるため、セパレータはできるだけ薄いものを使用することが望ましいが、互いに隣接する正極板及び負極板同士の極間よりも薄いセパレータでは、極板群を電槽に挿入する際にセパレータが位置ずれを起こしやすくなる。これらは高形の鉛蓄電池になればなるほど顕著になり、工程不良や電池使用中の短絡の原因となる。そのため、極板群を電槽に挿入する前に極板群を構成する正極板及び負極板をプレート本体に溶接又は溶着することによって、極板群を電槽に挿入する際に生じる極板間の位置ずれ及びセパレータの位置ずれを防止することができる。また、極板群を電槽に挿入する作業性を向上させることができる。 Here, for example, in a lead-acid battery including a plate group having a plate group having a plate height of 200 mm or more, the separator should be as thin as possible in order to reduce material costs or reduce electrical resistance between the plate plates. Although it is desirable, with a separator thinner than the gap between the positive and negative electrode plates adjacent to each other, the separator is liable to be displaced when the electrode plate group is inserted into the battery case. These become more prominent the higher the lead-acid battery, causing process defects and short circuits during battery use. Therefore, before the electrode plate group is inserted into the battery case, the positive electrode plate and the negative electrode plate constituting the electrode plate group are welded or welded to the plate body, thereby generating the gap between the electrode plates generated when the electrode plate group is inserted into the battery case. It is possible to prevent the positional deviation of the separator and the positional deviation of the separator. Moreover, the workability | operativity which inserts an electrode group into a battery case can be improved.
また本発明をゲル式又は顆粒式の制御弁式鉛蓄電池に適用した場合には、極板群を電槽に挿入する際又は化成後に電池を倒立させて電解液を排出や換液する場合にも、極板やセパレータの位置ずれを防止することができるので、安価で電気抵抗が低くなお且つ薄いセパレータを選択することができ、高率放電性能に優れた電池を提供することができる。 In addition, when the present invention is applied to a gel-type or granule-type control valve type lead-acid battery, when the electrode plate group is inserted into the battery case, or when the electrolyte is discharged or exchanged by inverting the battery after conversion. In addition, since the displacement of the electrode plate and the separator can be prevented, it is possible to select a thin separator that is inexpensive, has low electric resistance, and is excellent in high-rate discharge performance.
前記極板群における正極板がクラッド式極板の場合には、その構成を活かして、前記プレート本体に前記クラッド式極板の下部連座が溶接又は接着されていることが望ましい。この場合、プレート本体と下部連座との材質を同一とすることにより、クラッド式極板とプレート本体との溶着強度又は接着強度をより一層強固にすることができる。 In the case where the positive electrode plate in the electrode plate group is a clad electrode plate, it is preferable that the lower joint of the clad electrode plate is welded or bonded to the plate body by making use of the configuration. In this case, the welding strength or adhesive strength between the clad electrode plate and the plate body can be further strengthened by using the same material for the plate body and the lower joint.
前記アンカープレートが、前記極板群の各極板が嵌ることにより極板間の距離を保持する凹部と、前記凹部内において前記極板に接触するように設けられた接触体とを備え、当該接触体が前記極板群の鉛直方向の膨張により変形又は破壊されることによって前記極板の鉛直方向の膨張を吸収するものであることが望ましい。また前記アンカープレートが、前記極板群の各極板が嵌ることにより極板間の距離を保持する凹部と、前記凹部内に設けられて前記極板の鉛直方向の膨張を弾性変形により吸収する弾性体、又は、前記膨張を塑性変形により吸収する塑性変形体を備えていることが望ましい。これならば、凹部内に膨張吸収構造を構成する接触体、弾性体又は塑性変形体を設けることにより、外観形状を概略平板形状とすることができるので、アンカープレートの設置スペースを可及的に小さくすることができる。 The anchor plate includes a recess that holds a distance between the electrode plates by fitting each electrode plate of the electrode plate group, and a contact body that is provided in contact with the electrode plate in the recess. It is desirable that the contact body absorbs the expansion of the electrode plate in the vertical direction by being deformed or broken by the expansion of the electrode plate group in the vertical direction. Further, the anchor plate is provided with a recess for holding a distance between the electrode plates by fitting each electrode plate of the electrode plate group, and is provided in the recess to absorb the vertical expansion of the electrode plate by elastic deformation. It is desirable to provide an elastic body or a plastic deformation body that absorbs the expansion by plastic deformation. If this is the case, by providing a contact body, an elastic body, or a plastic deformation body constituting the expansion absorption structure in the recess, the outer shape can be made into a substantially flat plate shape. Can be small.
上記の各構成においては、特に弾性体を用いた構成において、極板が膨張する前の状態において弾性変形した状態であることが好ましい。これならば、極板が膨張した場合にその膨張分を吸収するだけでなく、極板が収縮した場合にその収縮分を吸収することができ、極板の膨張収縮に関わらず、各極板がアンカープレートにより位置決めされて極板間の距離を保持することができる。 In each of the above-described configurations, particularly in a configuration using an elastic body, it is preferable that the electrode plate is in an elastically deformed state before the electrode plate is expanded. In this case, when the electrode plate expands, not only the expansion component can be absorbed, but also when the electrode plate contracts, the contraction component can be absorbed. Can be positioned by the anchor plate to maintain the distance between the plates.
このように構成した本発明によれば、極板群における極板間の位置ずれを防止するとともに、当該極板の鉛直方向の膨張による電槽等の極板群周りの部材又は極板自体の破損を防止することができる。 According to the present invention configured as described above, positional displacement between the electrode plates in the electrode plate group is prevented, and the members around the electrode plate group such as the battery case due to the vertical expansion of the electrode plates or the electrode plate itself. Breakage can be prevented.
以下に本発明に係る鉛畜電池の一実施形態について図面を参照して説明する。 Hereinafter, an embodiment of a lead-acid battery according to the present invention will be described with reference to the drawings.
本実施形態に係る鉛蓄電池１００は、例えばバッテリーフォークリフト用などの電動車両用のものであり、極板高さが２００ｍｍ以上のベント形クラッド式鉛蓄電池である。 The lead storage battery 100 according to the present embodiment is for an electric vehicle such as a battery forklift, and is a bent clad lead storage battery having an electrode plate height of 200 mm or more.
具体的にこのものは、図１に示すように、合成樹脂製の電槽２と、当該電槽２に収容された極板群３と、当該極板群３と共に収容される希硫酸からなる電解液（不図示）と、前記電槽２の上部開口を塞ぐ蓋体（不図示）とを備えている。なお、蓋体には、正極端子、負極端子及び液口栓（いずれも不図示）が設けられている。 Specifically, as shown in FIG. 1, this is composed of a synthetic resin battery case 2, an electrode plate group 3 housed in the battery case 2, and dilute sulfuric acid housed together with the electrode plate group 3. An electrolytic solution (not shown) and a lid (not shown) that closes the upper opening of the battery case 2 are provided. The lid is provided with a positive electrode terminal, a negative electrode terminal, and a liquid spout (all not shown).
極板群３は、クラッド式極板である複数の正極板３１及びペースト式極板である複数の負極板３２をセパレータ３３を介して交互に配置して構成されている。そして複数の正極板３１はその上端部が正極ストラップにより一体的に接続されており、複数の負極板３２はその上端部が負極ストラップにより一体的に接続されている。なお、正極ストラップは前記正極端子に電気的に接続され、負極ストラップは前記負極端子に電気的に接続される。 The electrode plate group 3 is configured by alternately arranging a plurality of positive electrode plates 31 that are clad electrode plates and a plurality of negative electrode plates 32 that are paste electrode plates via separators 33. The upper ends of the plurality of positive plates 31 are integrally connected by a positive strap, and the upper ends of the negative plates 32 are integrally connected by a negative strap. The positive strap is electrically connected to the positive terminal, and the negative strap is electrically connected to the negative terminal.
そしてこの鉛蓄電池は、図１及び図２に示すように、電槽２内に収容された極板群３と電槽２の底面２ａとの間に介在して設けられ、極板群３における極板３１、３２間の距離を所定間隔に保持するアンカープレート４を備えている。このアンカープレート４は、極板３１、３２の鉛直方向の膨張を吸収する膨張吸収構造を有する。 As shown in FIGS. 1 and 2, the lead storage battery is provided between the electrode plate group 3 accommodated in the battery case 2 and the bottom surface 2 a of the battery case 2. An anchor plate 4 that holds the distance between the electrode plates 31 and 32 at a predetermined interval is provided. The anchor plate 4 has an expansion absorbing structure that absorbs the vertical expansion of the electrode plates 31 and 32.
このアンカープレート４は、電槽２の底面２ａに配置されるものであり、その上面に極板群３が装着されて支持固定するものである。具体的な構成は、図１〜図４に示すように、極板群３の極板３１、３２間の距離を所定間隔に保持するプレート本体４１と、このプレート本体４１の下面４１ａと電槽２の底面２ａとの間に設けられて極板３１、３２の鉛直方向の膨張を吸収する弾性体４２とを有する。 The anchor plate 4 is disposed on the bottom surface 2a of the battery case 2, and the electrode plate group 3 is attached to the upper surface of the anchor plate 4 so as to be supported and fixed. As shown in FIGS. 1 to 4, the specific configuration includes a plate body 41 that holds a distance between the electrode plates 31 and 32 of the electrode plate group 3 at a predetermined interval, a lower surface 41 a of the plate body 41, and a battery case. 2 and an elastic body 42 that absorbs the expansion of the electrode plates 31 and 32 in the vertical direction.
プレート本体４１は、合成樹脂製のものであり、図３に示すように、概略直方体形状をなす極板群３の底面の略全体を覆う矩形状平板であり、その上面に正極板（クラッド式極板）３１の下部連座３１１が溶着され、負極板（ペースト式極板）３２の格子下部が接着され、セパレータ３３の下端部が接着される。なお、プレート本体４１が極板群３の底面全体を覆う形状として極板群３とプレート本体４１との接続面積を大きくすることで耐振性を向上することができる。 The plate body 41 is made of synthetic resin, and as shown in FIG. 3, is a rectangular flat plate that covers substantially the entire bottom surface of the electrode plate group 3 having a substantially rectangular parallelepiped shape. The lower base 311 of the electrode plate 31 is welded, the lattice lower portion of the negative electrode plate (paste-type electrode plate) 32 is bonded, and the lower end of the separator 33 is bonded. The vibration resistance can be improved by increasing the connection area between the electrode plate group 3 and the plate body 41 so that the plate body 41 covers the entire bottom surface of the electrode plate group 3.
ここでプレート本体４１及び正極板３１の下部連座３１１を同一の合成樹脂製とすることによって、溶着強度を高めている。また、プレート本体４１の上面において負極板３２の格子下部が接着される部分には、当該格子下部が嵌る凹部４Ｍが形成されている（図４参照）。なお、正極板３１、負極板３２及びセパレータ３３とプレート本体４１との接続方法は、上記に限られず、溶着、接着、嵌合等の種々の固定方法を用いることができる。 Here, the welding strength is increased by making the lower joint 311 of the plate body 41 and the positive electrode plate 31 from the same synthetic resin. Further, in the upper surface of the plate body 41, a concave portion 4M into which the lower portion of the grid is fitted is formed in a portion where the lower portion of the negative plate 32 is bonded (see FIG. 4). In addition, the connection method of the positive electrode plate 31, the negative electrode plate 32 and the separator 33, and the plate main body 41 is not restricted above, Various fixing methods, such as welding, adhesion | attachment, fitting, can be used.
弾性体４２は、図１等に示すように、プレート本体４１を電槽２の底面２ａに対して複数点で支持するものであり、本実施形態では、複数のコイルばね４２ａにより構成している。これら複数のコイルばね４２ａは、圧縮コイルばねであり、プレート本体４１から受ける荷重がそれぞれ略均一となるように、例えばプレート本体４１の四つ角にそれぞれ１つずつ配置されている（図３参照）。 As shown in FIG. 1 and the like, the elastic body 42 supports the plate main body 41 at a plurality of points with respect to the bottom surface 2a of the battery case 2, and in the present embodiment, is constituted by a plurality of coil springs 42a. . The plurality of coil springs 42a are compression coil springs, and are arranged one by one, for example, at four corners of the plate body 41 so that the loads received from the plate body 41 are substantially uniform, respectively (see FIG. 3).
このように構成したアンカープレート４は、極板群３を電槽２に挿入する前に当該極板群３の底面に固定される。具体的には、アンカープレート４のプレート本体４１の上面に正極板３１の下部連座３１１が溶着され、プレート本体４１の上面に形成された凹部４Ｍ内に負極板３２の格子下部が嵌合接着され、プレート本体４１の上面にセパレータ３３の下端部が接着される。ここで、正極板３１及び負極板３２の極間距離Ｌとセパレータ３３の厚さｔとの関係がＬ＞２．５ｔとなるようにしている。なお、セパレータ３３が凹凸構造を有する場合には、そのベース厚さをｔとする。そして、このようにアンカープレート４が固定された極板群３を電槽２内に挿入して配置する。これにより、極板群３を電槽２に挿入する際に生じ得るセパレータ３３及び極板３１、３２の位置ずれを防止できるとともに作業性を向上させることができる。 The anchor plate 4 configured as described above is fixed to the bottom surface of the electrode plate group 3 before the electrode plate group 3 is inserted into the battery case 2. Specifically, the lower joint 311 of the positive electrode plate 31 is welded to the upper surface of the plate main body 41 of the anchor plate 4, and the lower lattice portion of the negative electrode plate 32 is fitted and bonded in the recess 4 </ b> M formed on the upper surface of the plate main body 41. The lower end of the separator 33 is bonded to the upper surface of the plate body 41. Here, the relationship between the distance L between the positive electrode plate 31 and the negative electrode plate 32 and the thickness t of the separator 33 satisfies L> 2.5t. If the separator 33 has a concavo-convex structure, the base thickness is t. Then, the electrode plate group 3 to which the anchor plate 4 is fixed is inserted into the battery case 2 and arranged. Thereby, position shift of the separator 33 and the electrode plates 31 and 32 which may occur when the electrode plate group 3 is inserted into the battery case 2 can be prevented, and workability can be improved.
そしてこのアンカープレート４により、極板３１、３２が膨張前の状態では、図５（Ａ）に示すように、コイルばね４２ａが縮んでいない自然状態又は若干縮んだ状態（以下、これらを含めて初期状態という。）であり、極板３１、３２が膨張した状態では、図５（Ｂ）に示すように、コイルばね４２ａが極板３１、３２の膨張分縮んで極板３１、３２の膨張を吸収する。なお、前記初期状態から線間密着によりそれ以上縮むことができない状態までのストローク長は、予め想定される極板３１、３２の膨張分よりも大きく設定している。このように極板３１、３２の膨張分をコイルばね４２ａが吸収する構造であるので、プレート本体４１を実質的に変形させることなく、コイルばね４２ａの弾性変形により確実に極板３１、３２の膨張分を吸収することができる。なお、プレート本体４１が実質的に変形しないことから極板３１、３２及びセパレータ３３とプレート本体４１との接続部位に過度の応力が掛からないようにして接続部位の破損を防止することができる。 And, as shown in FIG. 5 (A), when the pole plates 31 and 32 are in an unexpanded state by the anchor plate 4, the coil spring 42a is not contracted or is slightly contracted (hereinafter, including these). In the state in which the electrode plates 31 and 32 are expanded, the coil spring 42a is contracted by the expansion of the electrode plates 31 and 32 and the electrode plates 31 and 32 are expanded as shown in FIG. To absorb. Note that the stroke length from the initial state to the state where the wire cannot be further contracted due to the close contact between the lines is set to be larger than the expected expansion of the electrode plates 31 and 32. Since the coil spring 42a absorbs the expansion of the electrode plates 31 and 32 as described above, the electrode plates 31 and 32 are surely secured by elastic deformation of the coil spring 42a without substantially deforming the plate body 41. Can absorb swelling. In addition, since the plate main body 41 is not substantially deformed, it is possible to prevent the connection portion from being damaged by preventing excessive stress from being applied to the connection portions between the electrode plates 31 and 32 and the separator 33 and the plate main body 41.
このように構成した本実施形態に係る鉛畜電池１００によれば、極板３１、３２間の距離を保持するアンカープレート４を配置しているので、極板群３を電槽２内に配置した後に、当該電槽２内で極板群３を構成する正極板３１、負極板３２及びセパレータ３３の位置ずれを防止することができる。また、アンカープレート４が膨張吸収構造である弾性体４２（圧縮コイルばね４２ａ等）を備えているので、鉛蓄電池１００の使用により生じる極板３１、３２の鉛直方向への膨張を吸収することができ、電槽２等の極板群３周りの部材又は極板３１、３２自体の破損を防止することができる。これらの効果は、例えば極板高さが２００ｍｍ以上の極板３１、３２を有する極板群３を備える鉛蓄電池において、その極板高さが高くなるに連れて顕著となる。 According to the lead live battery 100 according to the present embodiment configured as described above, the anchor plate 4 that holds the distance between the electrode plates 31 and 32 is arranged, so the electrode plate group 3 is arranged in the battery case 2. After that, the displacement of the positive electrode plate 31, the negative electrode plate 32 and the separator 33 constituting the electrode plate group 3 in the battery case 2 can be prevented. Moreover, since the anchor plate 4 is provided with the elastic body 42 (compression coil spring 42a etc.) which is an expansion absorption structure, it can absorb the expansion | swelling to the vertical direction of the electrode plates 31 and 32 which arises by use of the lead storage battery 100. It is possible to prevent damage to members around the electrode plate group 3 such as the battery case 2 or the electrode plates 31 and 32 themselves. These effects become more prominent in the lead storage battery including the electrode plate group 3 having the electrode plates 31 and 32 having an electrode plate height of 200 mm or more, for example, as the electrode plate height increases.
なお、本発明は前記実施形態に限られるものではなく、アンカープレート４及び膨張吸収構造としては種々の例が考えられる。 In addition, this invention is not restricted to the said embodiment, A various example can be considered as the anchor plate 4 and an expansion absorption structure.
例えば、前記実施形態の弾性体４２の替わりに、プレート本体の下面と電槽の底面との間に設けられて極板の鉛直方向の膨張を塑性変形により吸収する塑性変形体を設けても良い。 For example, instead of the elastic body 42 of the above embodiment, a plastic deformation body that is provided between the lower surface of the plate body and the bottom surface of the battery case and absorbs the vertical expansion of the electrode plate by plastic deformation may be provided. .
また、膨張吸収構造となる弾性体４２のその他の例としては、図６（Ａ）に示すように、側面視において菱形状をなす板ばね４２ｂを用いても良いし、図６（Ｂ）に示すように、側面視において部分円弧状をなす板ばね４２ｃを用いても良い。また、図７に示すように、プレート本体４１を電槽２の底面２ａに対して支持するゴム４２ｄにより構成しても良いし、ゴム発泡体又は樹脂発泡体からなるスポンジ状発泡体（不図示）により構成しても良い。 Further, as another example of the elastic body 42 having an expansion absorption structure, a leaf spring 42b having a rhombus shape in a side view may be used as shown in FIG. As shown, a leaf spring 42c having a partial arc shape in a side view may be used. Further, as shown in FIG. 7, the plate body 41 may be constituted by a rubber 42d that supports the bottom surface 2a of the battery case 2, or a sponge-like foam (not shown) made of a rubber foam or a resin foam. ).
また、図８に示すように、アンカープレート４が、プレート本体４１と、このプレート本体４１の下面４１ａに設けられてプレート本体４１を支持する支持脚４３とを備えたものとしても良い。そして、プレート本体４１が極板の膨張に伴い撓むように、プレート本体４１の材質又は板厚等を構成を設定して、プレート本体４１が撓むことにより極板３１、３２の鉛直方向の膨張を吸収する膨張吸収構造としても良い。これならば、別途弾性体を設ける必要なく、膨張吸収構造を構成することができる。また、プレート本体４１と支持脚４３という簡単な構成により膨張吸収構造を有するアンカープレート４を作製することができる。さらに、プレート本体４１及び支持脚４３を同一の合成樹脂製にする等により一体成形することができる。なお、プレート本体４１を撓むように構成することで機械的強度を失うことになる等の場合には、図９（Ａ）に示すように、プレート本体４１の下面にばねやゴムといった弾性体４２を設けることが考えられる。なお、図９（Ｂ）に示すように、アンカープレート４をプレート本体４１及び支持脚４３を有する中空構造としても良い。 As shown in FIG. 8, the anchor plate 4 may include a plate main body 41 and support legs 43 provided on the lower surface 41 a of the plate main body 41 and supporting the plate main body 41. Then, the material or plate thickness of the plate main body 41 is set so that the plate main body 41 bends as the electrode plate expands, and the plate main body 41 bends to expand the electrode plates 31 and 32 in the vertical direction. It is good also as an expansion absorption structure to absorb. If it is this, an expansion absorption structure can be comprised, without providing an elastic body separately. In addition, the anchor plate 4 having the expansion absorption structure can be manufactured with a simple configuration of the plate body 41 and the support legs 43. Further, the plate body 41 and the support legs 43 can be integrally formed by making the same synthetic resin or the like. In the case where the mechanical strength is lost by configuring the plate body 41 to bend, an elastic body 42 such as a spring or rubber is provided on the lower surface of the plate body 41 as shown in FIG. It is conceivable to provide it. As shown in FIG. 9B, the anchor plate 4 may have a hollow structure having a plate body 41 and support legs 43.
さらに、図１０に示すように、支持脚４３が極板３１、３２の鉛直方向の膨張に伴い変形することにより、極板３１、３２の鉛直方向の膨張を吸収する膨張吸収構造としても良い。なお、図１０（Ａ）は、極板群３が軽い場合における支持脚４３の構成例を示す図であり、図１０（Ｂ）は、極板群３が重い場合における支持脚４３の構成例を示す図である。極板群３が重くなるほど支持脚４３の本数を多くすることが考えられる。これならば、プレート本体４１を強固にしてプレート本体４１を実質的に変形しない構成として極板３１、３２とプレート本体４１との接続部位の破損を防止しながらも、極板３１、３２の鉛直方向の膨張を吸収することができる。 Furthermore, as shown in FIG. 10, an expansion absorption structure that absorbs the vertical expansion of the electrode plates 31 and 32 by deforming the support legs 43 with the expansion of the electrode plates 31 and 32 in the vertical direction may be adopted. 10A is a diagram illustrating a configuration example of the support legs 43 when the electrode plate group 3 is light, and FIG. 10B is a configuration example of the support legs 43 when the electrode plate group 3 is heavy. FIG. It is conceivable that the number of support legs 43 is increased as the electrode plate group 3 becomes heavier. If this is the case, the plate body 41 is strengthened to prevent the plate body 41 from being substantially deformed, while preventing the connection portion between the electrode plates 31 and 32 and the plate body 41 from being damaged. Can absorb directional expansion.
その上、図１１に示すように、アンカープレート４が、概略平板形状をなすものであり、極板群３の各極板３１、３２が嵌ることにより極板３１、３２間の距離を保持する凹部４Ｍと、この凹部４Ｍ内において極板３１、３２に接触するように設けられた接触体４４とを備えたものとしても良い。そして、接触体４４が極板３１、３２の鉛直方向の膨張により変形又は破壊されることにより極板３１、３２の鉛直方向の膨張を吸収する膨張吸収構造としても良い。接触体４４の構成としては、図１１（Ａ）に示すように凹部４Ｍ内を塞ぐように設けられた膜状をなすものであっても良いし、図１１（Ｂ）に示すように凹部４Ｍ内において内面から内側に突出した突起状をなすものであっても良い。なお、接触体４４の数は図示したように１つ設ける場合に限られず、凹部内に複数設けても良い。 In addition, as shown in FIG. 11, the anchor plate 4 has a substantially flat plate shape, and the distance between the electrode plates 31 and 32 is maintained by fitting the electrode plates 31 and 32 of the electrode plate group 3. It is good also as what was provided with the recessed part 4M and the contact body 44 provided so that the electrode plates 31 and 32 might be contacted in this recessed part 4M. And it is good also as an expansion | swelling absorption structure which absorbs the expansion | swelling of the vertical direction of the electrode plates 31 and 32 by deform | transforming or destroying the contact body 44 by expansion | swelling of the electrode plates 31 and 32 by the vertical direction. The configuration of the contact body 44 may be a film provided so as to close the inside of the recess 4M as shown in FIG. 11 (A), or the recess 4M as shown in FIG. 11 (B). It may be a protrusion that protrudes inward from the inner surface. In addition, the number of the contact bodies 44 is not limited to the case where one contact body 44 is provided as illustrated, and a plurality of contact bodies 44 may be provided in the recess.
加えて、図１２に示すように、凹部４Ｍ内に、極板３１、３２の鉛直方向の膨張を吸収するばねやゴムといった弾性体４５又は当該膨張を塑性変形により吸収する塑性変形体を設けることで膨張吸収構造としても良い。 In addition, as shown in FIG. 12, an elastic body 45 such as a spring or rubber that absorbs the vertical expansion of the electrode plates 31 and 32 or a plastic deformation body that absorbs the expansion by plastic deformation is provided in the recess 4M. It is good also as an expansion absorption structure.
前記実施形態及び変形実施形態では、プレート本体４１又はアンカープレート４が極板群３の底面全体を覆うような構成であったが、図１３に示すように、極板群３の一部を積層方向に亘って覆うように装着されるものであっても良い。なお、図１３では２つのプレート本体４１を装着した場合を示しているがこれに限られない。これならば、アンカープレート４の装着位置を任意に指定することができ、また樹脂量を削減することが可能となる。 In the embodiment and the modified embodiment, the plate body 41 or the anchor plate 4 is configured to cover the entire bottom surface of the electrode plate group 3, but a part of the electrode plate group 3 is laminated as shown in FIG. It may be mounted so as to cover over the direction. Although FIG. 13 shows a case where two plate bodies 41 are mounted, the present invention is not limited to this. In this case, the mounting position of the anchor plate 4 can be arbitrarily designated, and the amount of resin can be reduced.
その他、本発明は前記実施形態に限られず、その趣旨を逸脱しない範囲で種々の変形が可能であるのは言うまでもない。 In addition, it goes without saying that the present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.
１００・・・鉛畜電池
２ ・・・電槽
２ａ ・・・底面
３ ・・・極板群
３１ ・・・正極板
３２ ・・・負極板
４ ・・・アンカープレート
４１ ・・・プレート本体
４Ｍ ・・・凹部
４２ ・・・弾性体（膨張吸収構造）
４３ ・・・支持脚
４４ ・・・接触体
４５ ・・・弾性体
DESCRIPTION OF SYMBOLS 100 ... Lead animal battery 2 ... Battery case 2a ... Bottom surface 3 ... Electrode plate group 31 ... Positive electrode plate 32 ... Negative electrode plate 4 ... Anchor plate 41 ... Plate main body 4M ... Recess 42 ... Elastic body (expansion absorbing structure)
43 ... support leg 44 ... contact body 45 ... elastic body
Claims (8)
前記アンカープレートが、前記極板の鉛直方向の膨張を吸収する膨張吸収構造を有することを特徴とする鉛蓄電池。 Provided between the electrode plate group accommodated in the battery case and the bottom surface of the battery case, comprising an anchor plate for maintaining the distance between the electrode plates in the electrode plate group,
The lead-acid battery, wherein the anchor plate has an expansion absorption structure that absorbs expansion in the vertical direction of the electrode plate.
前記プレート本体に前記クラッド式極板の下部連座が溶接又は接着されている２、３、４又は５記載の鉛蓄電池。 The positive electrode plate in the electrode plate group is a clad electrode plate,
The lead acid battery according to 2, 3, 4 or 5, wherein a lower joint of the clad electrode plate is welded or bonded to the plate body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011234523A JP2013093209A (en) | 2011-10-26 | 2011-10-26 | Lead acid storage battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2011234523A JP2013093209A (en) | 2011-10-26 | 2011-10-26 | Lead acid storage battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2013093209A true JP2013093209A (en) | 2013-05-16 |
Family
ID=48616191
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2011234523A Pending JP2013093209A (en) | 2011-10-26 | 2011-10-26 | Lead acid storage battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2013093209A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200040483A (en) * | 2018-10-10 | 2020-04-20 | 주식회사 한국아트라스비엑스 | Short circuit protection device to prevent short circuit due to growth of lead plate |
| WO2021059629A1 (en) * | 2019-09-27 | 2021-04-01 | 昭和電工マテリアルズ株式会社 | Active material holding member, electrode, lead acid storage battery, and electric car |
| CN114054480A (en) * | 2021-11-12 | 2022-02-18 | 江苏科技大学 | Lead storage battery disassembling device for lead slime recovery |
-
2011
- 2011-10-26 JP JP2011234523A patent/JP2013093209A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20200040483A (en) * | 2018-10-10 | 2020-04-20 | 주식회사 한국아트라스비엑스 | Short circuit protection device to prevent short circuit due to growth of lead plate |
| KR102123000B1 (en) | 2018-10-10 | 2020-06-16 | 주식회사 한국아트라스비엑스 | Short circuit protection device to prevent short circuit due to growth of lead plate |
| WO2021059629A1 (en) * | 2019-09-27 | 2021-04-01 | 昭和電工マテリアルズ株式会社 | Active material holding member, electrode, lead acid storage battery, and electric car |
| CN114868285A (en) * | 2019-09-27 | 2022-08-05 | 安奈吉位斯株式会社 | Active material holding member, electrode, lead storage battery, and electric vehicle |
| CN114054480A (en) * | 2021-11-12 | 2022-02-18 | 江苏科技大学 | Lead storage battery disassembling device for lead slime recovery |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5345565B2 (en) | Battery module | |
| US20150093620A1 (en) | Electric storage device and electric storage apparatus | |
| JP5357853B2 (en) | Battery module | |
| JP6519161B2 (en) | Storage element | |
| JP7385672B2 (en) | battery module | |
| JP5542558B2 (en) | Secondary battery device | |
| US20130196218A1 (en) | Energy storage element | |
| US20130078492A1 (en) | Battery | |
| JPWO2016002178A1 (en) | Power supply | |
| CN110268548B (en) | Electricity storage device | |
| US20130136977A1 (en) | Energy storage element | |
| JP5699811B2 (en) | Storage battery | |
| JP2010040243A (en) | Battery module | |
| JP2013175439A (en) | Power storage element, metal component, and manufacturing method of power storage element | |
| WO2020133657A1 (en) | Battery box and battery module | |
| JP6136407B2 (en) | Power module | |
| JP6658130B2 (en) | Method of manufacturing battery module | |
| JP2013093209A (en) | Lead acid storage battery | |
| JP2015135772A (en) | Power storage element | |
| JP2013016440A (en) | Wound power storage element | |
| US10115934B2 (en) | Battery pack | |
| JP6187148B2 (en) | Storage element and power supply module | |
| CN112687832B (en) | Battery cell and power utilization device | |
| JP2014154504A (en) | Battery pack | |
| KR20130116807A (en) | Battery |