JP6225773B2 - Electrode manufacturing equipment - Google Patents

Electrode manufacturing equipment Download PDF

Info

Publication number
JP6225773B2
JP6225773B2 JP2014054587A JP2014054587A JP6225773B2 JP 6225773 B2 JP6225773 B2 JP 6225773B2 JP 2014054587 A JP2014054587 A JP 2014054587A JP 2014054587 A JP2014054587 A JP 2014054587A JP 6225773 B2 JP6225773 B2 JP 6225773B2
Authority
JP
Japan
Prior art keywords
electrode
separator
electrode material
tool
presser
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.)
Active
Application number
JP2014054587A
Other languages
Japanese (ja)
Other versions
JP2015176847A (en
Inventor
栄克 河端
栄克 河端
雅巳 冨岡
雅巳 冨岡
木下　恭一
恭一 木下
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toyota Industries Corp
Original Assignee
Toyota Industries Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Toyota Industries Corp filed Critical Toyota Industries Corp
Priority to JP2014054587A priority Critical patent/JP6225773B2/en
Publication of JP2015176847A publication Critical patent/JP2015176847A/en
Application granted granted Critical
Publication of JP6225773B2 publication Critical patent/JP6225773B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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

Landscapes

  • Cell Separators (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Description

この発明は、電極の製造装置に関する。   The present invention relates to an electrode manufacturing apparatus.

ＥＶ（Electric Vehicle）やＰＨＶ（Plug in Hybrid Vehicle）などの車両には、原動機となる電動機への供給電力を蓄える蓄電装置としてリチウムイオン電池などの二次電池が搭載されている。二次電池は、例えば正極電極と負極電極とがセパレータを間に挟んだ状態で積層された電極組立体を備えている。そして、特許文献１に記載の製造装置では、帯状の電極材料を搬送しながらローラカッターによって順次切断することにより、電極が製造されている。   A vehicle such as an EV (Electric Vehicle) or a PHV (Plug in Hybrid Vehicle) is equipped with a secondary battery such as a lithium ion battery as a power storage device that stores power supplied to an electric motor serving as a prime mover. The secondary battery includes, for example, an electrode assembly in which a positive electrode and a negative electrode are stacked with a separator interposed therebetween. And in the manufacturing apparatus of patent document 1, an electrode is manufactured by cut | disconnecting sequentially with a roller cutter, conveying a strip-shaped electrode material.

特開平０９−３０６４８１号公報Japanese Patent Laid-Open No. 09-306481

ところで、特許文献１に記載の製造装置では、帯状の電極材料を２つのローラで挟んで切断している。しかしながら、２つのローラで挟むことでは、切断時に帯状の電極材料に適切なテンションを掛けることができない。このため、特許文献１に記載の製造装置では、切断後の電極に切断面のバリやしわが生じるおそれがある。   By the way, in the manufacturing apparatus described in Patent Document 1, a strip-shaped electrode material is sandwiched between two rollers and cut. However, by sandwiching between two rollers, an appropriate tension cannot be applied to the strip-shaped electrode material at the time of cutting. For this reason, in the manufacturing apparatus described in Patent Document 1, burrs and wrinkles on the cut surface may occur in the cut electrode.

この発明は、上記実情に鑑みてなされたものであり、その目的は、帯状の電極材料の切断時に帯状の電極材料に適切なテンションを掛けることができる電極の製造装置を提供することにある。   This invention is made | formed in view of the said situation, The objective is to provide the manufacturing apparatus of the electrode which can apply an appropriate tension to a strip | belt-shaped electrode material at the time of a cutting | disconnection of a strip | belt-shaped electrode material.

以下、上記目的を達成するための手段及びその作用効果について記載する。
上記課題を解決する電極の製造装置は、回転可能なカム形状であって、カム山に刃具を有する押さえ具と、押さえ具に対し接近する方向に付勢されるとともに、刃具を受け止め可能な凹部を有する受け具とを備えている。そして、押さえ具と受け具とが帯状の電極材料を挟んで位置し、刃具と凹部との係合により帯状の電極材料が切断される。また、受け具は、帯状の電極材料の搬送方向に分割されており、分割されたそれぞれが独立して変動可能である。 In the following, means for achieving the above object and its effects are described.
An electrode manufacturing apparatus that solves the above-mentioned problems is a rotatable cam shape, a pressing tool having a cutting tool on a cam crest, and a recess that is biased in a direction approaching the pressing tool and can receive the cutting tool. And a receiver having the. Then, the pressing tool and the receiving tool are positioned with the band-shaped electrode material interposed therebetween, and the band-shaped electrode material is cut by the engagement between the cutting tool and the recess. Moreover, the receiving tool is divided | segmented in the conveyance direction of a strip | belt-shaped electrode material, and each divided | segmented can be changed independently.

上記構成によれば、押さえ具の刃具と受け具の凹部とが係合する際に、押さえ具のカム山によって電極材料が凹部に向けて押し込まれる。したがって、切断時に電極材料に適切なテンションを掛けることができる。
また、上記構成によれば、受け具に押さえ具のカム山が当接する際に、分割された受け具がそれぞれ独立して押し下げられる。そして、電極材料は、分割された受け具のそれぞれと当接しながら押し下げられるため、分割された受け具のそれぞれに沿ってテンションが掛けられる。したがって、切断時に電極材料により適切なテンションを掛けることができる。 According to the above configuration, when the cutting tool of the pressing tool and the concave portion of the receiving tool are engaged, the electrode material is pushed toward the concave portion by the cam crest of the pressing tool. Therefore, an appropriate tension can be applied to the electrode material during cutting.
Moreover, according to the said structure, when the cam crest of a pressing tool contact | abuts to a receiving tool, each divided receiving tool is pushed down independently. Since the electrode material is pushed down while being in contact with each of the divided receivers, tension is applied along each of the divided receivers. Therefore, an appropriate tension can be applied to the electrode material at the time of cutting.

帯状の電極材料として、電極の両面が帯状のセパレータ材料で挟まれたものを採用する場合では、例えば、押さえ具と受け具とのうちの少なくとも一方にセパレータ材料同士を溶着する熱源を備えることが好ましい。   In the case of adopting a strip-shaped electrode material in which both surfaces of the electrode are sandwiched between strip-shaped separator materials, for example, a heat source that welds the separator materials to at least one of the presser and the receiver may be provided. preferable.

上記構成によれば、電極材料の切断とセパレータ材料同士の溶着とを、押さえ具及び受け具によって行うことができる。したがって、製造装置の設備を減らすことができ、製造ラインを短くすることができる。   According to the above configuration, the cutting of the electrode material and the welding of the separator materials can be performed by the pressing tool and the receiving tool. Therefore, the equipment of the manufacturing apparatus can be reduced and the manufacturing line can be shortened.

受け具は、例えば、湾曲面に凹部を有し、押さえ具と受け具の湾曲面とで帯状の電極材料を挟むものが好ましい。
上記構成によれば、受け具に押さえ具のカム山が当接する際に、受け具の湾曲面に沿って当接する。このため、電極材料の切断時に押さえ具の刃具に作用する摩擦を低下させることができるため、刃具の耐摩耗性を向上させることができる。 For example, the receiving member preferably has a concave portion on the curved surface and sandwiches the belt-shaped electrode material between the pressing member and the curved surface of the receiving member.
According to the said structure, when the cam crest of a pressing tool contact | abuts to a receiver, it contacts along the curved surface of a receiver. For this reason, since the friction which acts on the cutter of a pressing tool at the time of cutting | disconnection of electrode material can be reduced, the abrasion resistance of a cutter can be improved.

本発明によれば、帯状の電極材料の切断時に帯状の電極材料に適切なテンションを掛けることができる。   According to the present invention, it is possible to apply an appropriate tension to the band-shaped electrode material when cutting the band-shaped electrode material.

二次電池の外観を示す斜視図。The perspective view which shows the external appearance of a secondary battery. 電極組立体の構成要素を示す分解斜視図。The disassembled perspective view which shows the component of an electrode assembly. （ａ）〜（ｅ）は製造装置による電極の製造工程を示す模式図。(A)-(e) is a schematic diagram which shows the manufacturing process of the electrode by a manufacturing apparatus. 電極材料への溶着の様子を示す模式図。The schematic diagram which shows the mode of the welding to an electrode material. 押さえ具を示す斜視図。The perspective view which shows a pressing tool. 受け具を示す斜視図。The perspective view which shows a receiving tool. 別の実施形態における受け具を示す模式図。The schematic diagram which shows the receiver in another embodiment. 別の実施形態における受け具を示す模式図。The schematic diagram which shows the receiver in another embodiment.

以下、電極の製造装置を具体化した一実施形態を図１〜図６にしたがって説明する。
図１に示すように、蓄電装置としての二次電池１０は、ケース１１内に電極組立体１２と電解液が収容される。ケース１１は、有底四角筒状のケース本体１３と、当該ケース本体１３の開口部を閉塞する矩形平板状の蓋体１４とからなる。電極組立体１２には、正極端子１６及び負極端子１７が電気的に接続される。正極端子１６及び負極端子１７には、ケース１１から絶縁するためのリング状の絶縁リング１８がそれぞれ取り付けられている。そして、正極端子１６と負極端子１７は、蓋体１４からケース１１外に露出している。 Hereinafter, an embodiment of an electrode manufacturing apparatus will be described with reference to FIGS.
As shown in FIG. 1, a secondary battery 10 as a power storage device includes an electrode assembly 12 and an electrolytic solution housed in a case 11. The case 11 includes a bottomed square cylindrical case main body 13 and a rectangular flat plate-like lid body 14 that closes an opening of the case main body 13. A positive electrode terminal 16 and a negative electrode terminal 17 are electrically connected to the electrode assembly 12. A ring-shaped insulating ring 18 for insulating from the case 11 is attached to each of the positive terminal 16 and the negative terminal 17. The positive terminal 16 and the negative terminal 17 are exposed outside the case 11 from the lid 14.

図２に示すように、電極組立体１２は、袋状をなすとともにその内部に電極として正極電極２１を収納した電極収納セパレータ２５と、正極電極２１とは極性の異なる負極電極２６と、を有する。電極組立体１２は、複数の電極収納セパレータ２５と複数の負極電極２６とを交互に積層して層状とした構造である。   As shown in FIG. 2, the electrode assembly 12 has a bag shape and includes an electrode storage separator 25 in which the positive electrode 21 is stored as an electrode, and a negative electrode 26 having a polarity different from that of the positive electrode 21. . The electrode assembly 12 has a layered structure in which a plurality of electrode storage separators 25 and a plurality of negative electrodes 26 are alternately stacked.

正極電極２１は、四角シート状の正極金属箔（例えばアルミニウム箔）２２と、正極金属箔２２の両面に正極活物質を含む正極活物質層２３を有する。正極電極２１の端縁２１ａからは正極タブ２４が突出している。各正極電極２１の正極タブ２４は、正極端子１６に電気的に接続される。負極電極２６は、四角シート状の負極金属箔（例えば銅箔）２７と、負極金属箔２７の両面に負極活物質を含む負極活物質層２８を有する。負極電極２６の端縁２６ａからは負極タブ２９が突出している。各負極電極２６の負極タブ２９は、負極端子１７に電気的に接続される。   The positive electrode 21 has a square sheet-like positive electrode metal foil (for example, aluminum foil) 22 and a positive electrode active material layer 23 containing a positive electrode active material on both surfaces of the positive electrode metal foil 22. A positive electrode tab 24 protrudes from the end edge 21 a of the positive electrode 21. The positive electrode tab 24 of each positive electrode 21 is electrically connected to the positive electrode terminal 16. The negative electrode 26 has a square sheet-like negative electrode metal foil (for example, copper foil) 27 and a negative electrode active material layer 28 containing a negative electrode active material on both surfaces of the negative electrode metal foil 27. A negative electrode tab 29 protrudes from the edge 26 a of the negative electrode 26. The negative electrode tab 29 of each negative electrode 26 is electrically connected to the negative electrode terminal 17.

電極収納セパレータ２５は、互いに対峙する四角シート状の第１セパレータ２５ａと四角シート状の第２セパレータ２５ｂとから構成されている。第１セパレータ２５ａ及び第２セパレータ２５ｂは、いずれも微多孔性フィルムからなる。第１セパレータ２５ａと第２セパレータ２５ｂは同サイズであり、正極電極２１よりも一回り大きなサイズである。これにより、第１セパレータ２５ａと第２セパレータ２５ｂは、正極電極２１を重ねた状態において、正極電極２１の各端縁２１ａ，２１ｂ，２１ｃ，２１ｄからはみ出すはみ出し部３０ａ，３０ｂ，３０ｃ，３０ｄを有する。はみ出し部３０ａは、正極電極２１において正極タブ２４が突出している端縁２１ａからはみ出す。はみ出し部３０ｂは、正極電極２１の端縁２１ａに沿う辺の対辺側の端縁２１ｂからはみ出す。はみ出し部３０ｃは、端縁２１ａに沿う辺に直交する辺側の端縁２１ｃからはみ出す。はみ出し部３０ｄは、端縁２１ｃに沿う辺の対辺側の端縁２１ｄからはみ出す。   The electrode storage separator 25 includes a square sheet-shaped first separator 25a and a square sheet-shaped second separator 25b that face each other. Both the first separator 25a and the second separator 25b are made of a microporous film. The first separator 25 a and the second separator 25 b have the same size and are slightly larger than the positive electrode 21. Thereby, the 1st separator 25a and the 2nd separator 25b have the protrusion parts 30a, 30b, 30c, 30d which protrude from each edge 21a, 21b, 21c, 21d of the positive electrode 21 in the state which accumulated the positive electrode 21. . The protruding portion 30 a protrudes from the edge 21 a where the positive electrode tab 24 protrudes from the positive electrode 21. The protruding portion 30 b protrudes from the edge 21 b on the opposite side of the side along the edge 21 a of the positive electrode 21. The protruding portion 30c protrudes from the side edge 21c orthogonal to the side along the edge 21a. The protruding portion 30d protrudes from the edge 21d on the opposite side of the side along the edge 21c.

電極収納セパレータ２５は、第１セパレータ２５ａと第２セパレータ２５ｂの対向するはみ出し部３０ａ〜３０ｄ同士が、溶着によって形成される接合部３１で接合されている。第１セパレータ２５ａと第２セパレータ２５ｂは、四辺で接合されている。また、正極電極２１の正極タブ２４は、第１セパレータ２５ａと第２セパレータ２５ｂの対向する面であるはみ出し部３０ａの面の間に位置し、その面の間を通って第１セパレータ２５ａ及び第２セパレータ２５ｂの各端縁よりも突出している。電極収納セパレータ２５は、第１セパレータ２５ａと第２セパレータ２５ｂが接合されることによって接合部３１の内側が電極の収納部となり、その収納部と第１セパレータ２５ａ及び第２セパレータ２５ｂの端縁との間で溶着されている。   In the electrode storage separator 25, the protruding portions 30a to 30d facing each other of the first separator 25a and the second separator 25b are joined by a joining portion 31 formed by welding. The first separator 25a and the second separator 25b are joined at four sides. Further, the positive electrode tab 24 of the positive electrode 21 is located between the surfaces of the protruding portions 30a, which are the opposed surfaces of the first separator 25a and the second separator 25b, and passes between the first and second separators 25a and 25a. It protrudes from each edge of the 2 separator 25b. The electrode storage separator 25 is joined to the first separator 25a and the second separator 25b so that the inside of the joint portion 31 becomes an electrode storage portion, and the storage portion and the edges of the first separator 25a and the second separator 25b Are welded between.

次に、電極としての電極収納セパレータ２５の製造装置について説明する。なお、本実施形態の製造装置では、内部に正極電極２１が収納された状態の電極収納セパレータ２５が製造される。   Next, the manufacturing apparatus of the electrode storage separator 25 as an electrode is demonstrated. In the manufacturing apparatus of the present embodiment, the electrode storage separator 25 in which the positive electrode 21 is stored therein is manufactured.

図３（ａ）に示すように、製造装置４０は、カム形状の押さえ具４１と、ばね４５によって押さえ具４１に対し接近する方向に付勢される受け具４６と、を備えている。受け具４６の下部には、受け具４６から所定距離だけ離れた位置に当て板４７が配置されている。押さえ具４１と受け具４６とは互いに対向するように配設されており、これら押さえ具４１と受け具４６とによって長尺帯状の電極材料５０が挟まれている。   As shown in FIG. 3A, the manufacturing apparatus 40 includes a cam-shaped pressing tool 41 and a receiving tool 46 that is biased in a direction approaching the pressing tool 41 by a spring 45. A backing plate 47 is disposed at a position separated from the receptacle 46 by a predetermined distance below the receptacle 46. The presser 41 and the receiver 46 are disposed so as to face each other, and the long belt-like electrode material 50 is sandwiched between the presser 41 and the receiver 46.

図４に示すように、電極材料５０は、長尺帯状の第１セパレータ材料５１と長尺帯状の第２セパレータ材料５２との間に正極電極２１が挟まれたものである。すなわち、電極材料５０は、正極電極２１の両面が第１セパレータ材料５１と第２セパレータ材料５２とで覆われたものである。電極材料５０では、正極電極２１が第１セパレータ材料５１及び第２セパレータ材料５２の長手方向に、すなわち電極材料５０の搬送方向に所定間隔を隔てて並べられている。そして、正極電極２１は、第１セパレータ材料５１及び第２セパレータ材料５２の長手方向に延びる端縁５１ａ，５２ａと端縁５１ｂ，５２ｂとの間に位置しており、正極タブ２４が第１セパレータ材料５１及び第２セパレータ材料５２の端縁５１ａ，５２ａから電極材料５０外にはみ出している。   As shown in FIG. 4, the electrode material 50 is obtained by sandwiching the positive electrode 21 between a long strip-shaped first separator material 51 and a long strip-shaped second separator material 52. That is, in the electrode material 50, both surfaces of the positive electrode 21 are covered with the first separator material 51 and the second separator material 52. In the electrode material 50, the positive electrode 21 is arranged at a predetermined interval in the longitudinal direction of the first separator material 51 and the second separator material 52, that is, in the transport direction of the electrode material 50. The positive electrode 21 is located between the end edges 51a and 52a extending in the longitudinal direction of the first separator material 51 and the second separator material 52 and the end edges 51b and 52b, and the positive electrode tab 24 is the first separator. It protrudes out of the electrode material 50 from the edges 51a and 52a of the material 51 and the second separator material 52.

図５に示すように、押さえ具４１は、カム山４１ａを含んで全体的に湾曲した側面４１ｃを有する。押さえ具４１のカム山４１ａの頂点部分では、第１セパレータ材料５１及び第２セパレータ材料５２の短手方向に、すなわち押さえ具４１の厚み方向に、刃具４２が延設されている。また、押さえ具４１には、押さえ具４１の厚み方向に貫通する回転軸４３が固定されており、この回転軸４３を中心に押さえ具４１が回転可能となっている。押さえ具４１の回転軸４３は、押さえ具４１における側面４１ｃから回転軸４３までの長さのうちで、カム山４１ａの頂点部分から回転軸４３までの長さが最も長くなるように、位置している。   As shown in FIG. 5, the presser 41 has a side surface 41 c that is entirely curved including a cam peak 41 a. At the apex portion of the cam crest 41 a of the presser 41, the cutting tool 42 extends in the short direction of the first separator material 51 and the second separator material 52, that is, in the thickness direction of the presser 41. In addition, a rotation shaft 43 that penetrates in the thickness direction of the pressing tool 41 is fixed to the pressing tool 41, and the pressing tool 41 can rotate around the rotation shaft 43. The rotary shaft 43 of the presser 41 is positioned so that the length from the apex portion of the cam peak 41a to the rotary shaft 43 is the longest from the side surface 41c to the rotary shaft 43 of the presser 41. ing.

また、押さえ具４１の側面４１ｃには、熱源４４が位置している。熱源４４は、押さえ具４１の側面４１ｃの全周に亘って位置しており、押さえ具４１の厚み方向の両端部に沿うように２組位置している。なお、押さえ具４１の厚み方向の長さは、電極材料５０の第１セパレータ材料５１及び第２セパレータ材料５２の短手方向の長さと同程度の長さとなっている。このため、押さえ具４１が回転することにより、押さえ具４１の熱源４４が、電極材料５０の第１セパレータ材料５１及び第２セパレータ材料５２における端縁５１ａ，５２ａ及び端縁５１ｂ，５２ｂにそれぞれ沿うように、電極材料５０の第１セパレータ材料５１の表面に当接する。また、押さえ具４１の側面４１ｃの周方向の長さは、第１セパレータ材料５１及び第２セパレータ材料５２の長手方向において、１枚の正極電極２１と当該正極電極２１の一方側の隣に並べられた正極電極２１との間から、１枚の正極電極２１と当該正極電極２１の他方側の隣に並べられた正極電極２１との間までの長さと同程度の長さとなっている。   A heat source 44 is located on the side surface 41 c of the presser 41. The heat sources 44 are positioned over the entire circumference of the side surface 41 c of the pressing tool 41, and two sets are positioned so as to follow both end portions in the thickness direction of the pressing tool 41. The length in the thickness direction of the presser 41 is approximately the same as the length in the short direction of the first separator material 51 and the second separator material 52 of the electrode material 50. For this reason, when the pressing tool 41 rotates, the heat source 44 of the pressing tool 41 extends along the edges 51a and 52a and the edges 51b and 52b of the first separator material 51 and the second separator material 52 of the electrode material 50, respectively. Thus, it contacts the surface of the first separator material 51 of the electrode material 50. Also, the circumferential length of the side surface 41 c of the presser 41 is arranged next to one positive electrode 21 and one side of the positive electrode 21 in the longitudinal direction of the first separator material 51 and the second separator material 52. The length is approximately the same as the length from the space between the positive electrode 21 and the positive electrode 21 arranged next to the other side of the positive electrode 21.

押さえ具４１の２組の熱源４４が電極材料５０の第１セパレータ材料５１の表面に当接することにより、第１セパレータ材料５１及び第２セパレータ材料５２における端縁５１ａ，５２ａ及び端縁５１ｂ，５２ｂがそれぞれ同時に溶着可能となっている。また、本実施形態の押さえ具４１の熱源４４は、押さえ具４１の回転中は常に加熱される。   The two heat sources 44 of the presser 41 come into contact with the surface of the first separator material 51 of the electrode material 50, so that the edges 51a and 52a and the edges 51b and 52b in the first separator material 51 and the second separator material 52 are obtained. Can be welded simultaneously. Further, the heat source 44 of the presser 41 of the present embodiment is always heated while the presser 41 is rotating.

図６に示すように、受け具４６は、全体の形状が立方体状であり、電極材料５０の第２セパレータ材料５２を支持する支持面４６ａに凹部４８を有している。本実施形態の受け具４６の支持面４６ａは平面状であり、凹部４８は、第１セパレータ材料５１及び第２セパレータ材料５２の長手方向に沿った、すなわち受け具４６の幅方向に沿った断面矩形状である。また、本実施形態の凹部４８は、受け具４６の幅方向において、受け具４６の中央部分に位置しており、第１セパレータ材料５１及び第２セパレータ材料５２の短手方向において、すなわち受け具４６の厚み方向において、受け具４６の全体に延設されている。   As shown in FIG. 6, the receiver 46 has a cubic shape as a whole, and has a recess 48 on the support surface 46 a that supports the second separator material 52 of the electrode material 50. The support surface 46 a of the receiver 46 of the present embodiment is planar, and the recess 48 is a cross section along the longitudinal direction of the first separator material 51 and the second separator material 52, that is, along the width direction of the receiver 46. It is rectangular. In addition, the concave portion 48 of the present embodiment is located in the center portion of the receiving tool 46 in the width direction of the receiving tool 46, and in the shorter direction of the first separator material 51 and the second separator material 52, that is, the receiving tool. In the thickness direction of 46, it extends over the entire receiving tool 46.

また、受け具４６の凹部４８の内面に沿って熱源４９が位置している。熱源４９は、受け具４６の厚み方向における凹部４８の全体に亘って位置している。なお、受け具４６の厚み方向の長さは、押さえ具４１と同様に、電極材料５０の第１セパレータ材料５１及び第２セパレータ材料５２の短手方向の長さと同程度の長さとなっている。このため、受け具４６の熱源４９が電極材料５０の第１セパレータ材料５１及び第２セパレータ材料５２における短手方向に沿うように、受け具４６が第２セパレータ材料５２の表面に当接する。この熱源４９が第２セパレータ材料５２の表面に当接することにより、第１セパレータ材料５１及び第２セパレータ材料５２が短手方向で溶着可能となっている。また、本実施形態の受け具４６の熱源４９は、加熱されるタイミングが制御可能となっている。   A heat source 49 is positioned along the inner surface of the recess 48 of the receiving device 46. The heat source 49 is located over the entire recess 48 in the thickness direction of the receptacle 46. Note that the length in the thickness direction of the receiving tool 46 is similar to the length in the short direction of the first separator material 51 and the second separator material 52 of the electrode material 50, similar to the presser 41. . For this reason, the receiver 46 abuts on the surface of the second separator material 52 so that the heat source 49 of the receiver 46 is along the short direction of the first separator material 51 and the second separator material 52 of the electrode material 50. When the heat source 49 abuts on the surface of the second separator material 52, the first separator material 51 and the second separator material 52 can be welded in the short direction. In addition, the heating timing of the heat source 49 of the receiver 46 according to the present embodiment can be controlled.

次に、製造装置４０の作用について、電極収納セパレータ２５の製造方法とともに説明する。
図３（ａ）に示すように、製造装置４０では、正極電極２１の両面が第１セパレータ材料５１と第２セパレータ材料５２とで覆われた状態の電極材料５０が搬送される。そして、押さえ具４１及び受け具４６の配設位置では、押さえ具４１及び受け具４６によって電極材料５０が両面から挟まれる。なお、押さえ具４１及び受け具４６の配設位置よりも搬送方向の上流側の電極材料５０は、接合部３１が形成されていない状態である。 Next, the operation of the manufacturing apparatus 40 will be described together with a method for manufacturing the electrode storage separator 25.
As shown in FIG. 3A, in the manufacturing apparatus 40, the electrode material 50 in a state where both surfaces of the positive electrode 21 are covered with the first separator material 51 and the second separator material 52 is conveyed. And in the arrangement | positioning position of the pressing tool 41 and the receiving tool 46, the electrode material 50 is pinched | interposed from both surfaces by the pressing tool 41 and the receiving tool 46. FIG. The electrode material 50 on the upstream side in the transport direction from the positions where the presser 41 and the receiver 46 are disposed is in a state where the joint portion 31 is not formed.

押さえ具４１は、電極材料５０の搬送に伴って回転軸４３を中心に回転する。これにより、押さえ具４１の側面４１ｃが第１セパレータ材料５１の表面に長手方向に沿って当接する。また、受け具４６の支持面４６ａは、電極材料５０の両面のうちで押さえ具４１が当接する面とは反対側の第２セパレータ材料５２の面に当接する。   The presser 41 rotates around the rotation shaft 43 as the electrode material 50 is conveyed. Thereby, the side surface 41c of the pressing tool 41 contacts the surface of the first separator material 51 along the longitudinal direction. Further, the support surface 46 a of the receiving tool 46 comes into contact with the surface of the second separator material 52 on the opposite side of the surface of the electrode material 50 with which the pressing tool 41 comes into contact.

図４に示すように、押さえ具４１の電極材料５０への当接に伴って押さえ具４１の２組の熱源４４が電極材料５０の表面に当接することにより、第１セパレータ材料５１及び第２セパレータ材料５２における端縁５１ａ，５２ａ及び端縁５１ｂ，５２ｂに沿って接合部３１がそれぞれ形成される。こうした端縁５１ａ，５２ａ及び端縁５１ｂ，５２ｂに沿って位置する接合部３１は、押さえ具４１の回転に伴って電極材料５０における熱源４４の当接箇所が移動することにより、電極材料５０の長手方向に沿って順次形成されていく。   As shown in FIG. 4, the two heat sources 44 of the presser 41 come into contact with the surface of the electrode material 50 as the presser 41 comes into contact with the electrode material 50. The joint portions 31 are formed along the end edges 51a and 52a and the end edges 51b and 52b in the separator material 52, respectively. The joint portion 31 positioned along the end edges 51a and 52a and the end edges 51b and 52b moves the contact portion of the heat source 44 in the electrode material 50 with the rotation of the presser 41, thereby It is formed sequentially along the longitudinal direction.

図３（ｂ）に示すように、電極材料５０の表面に押さえ具４１のカム山４１ａが当接し始めると、カム山４１ａによって電極材料５０が押し下げられて、電極材料５０にテンションが掛かる。そして、ばね４５が縮むことにより、受け具４６が電極材料５０に当接したまま押さえ具４１から離間する方向に変位する。   As shown in FIG. 3B, when the cam crest 41 a of the presser 41 starts to come into contact with the surface of the electrode material 50, the electrode material 50 is pushed down by the cam crest 41 a and tension is applied to the electrode material 50. When the spring 45 contracts, the receiving tool 46 is displaced in a direction away from the pressing tool 41 while being in contact with the electrode material 50.

図３（ｃ）に示すように、さらに押さえ具４１が回転すると、押さえ具４１における電極材料５０への当接部分がカム山４１ａの頂点部分に差しかかる。このとき、さらにばね４５が縮んで受け具４６が押さえ具４１から離間する方向に変位した後、受け具４６が当て板４７に当接することにより、受け具４６が当て板４７によって支持された状態となる。また、受け具４６がばね４５の復帰を受けて、受け具４６と押さえ具４１とで電極材料５０が挟持される。そして、押さえ具４１の刃具４２が電極材料５０を介して受け具４６の凹部４８に受け止められることにより、刃具４２と凹部４８とが係合する。電極材料５０は、押さえ具４１のカム山４１ａによって受け具４６の凹部４８に押し込められるため、凹部４８の内面との間で摩擦が生じる。こうして電極材料５０が凹部４８によって拘束された状態で、電極材料５０が短手方向に沿って切断される。このとき、電極材料５０はテンションが掛けられた状態で切断されるため、切断時に電極材料５０がよれてしわが生じることが抑制される。   As shown in FIG. 3C, when the presser 41 further rotates, the contact portion of the presser 41 with the electrode material 50 reaches the apex portion of the cam crest 41a. At this time, after the spring 45 is further contracted and the receptacle 46 is displaced in a direction away from the presser 41, the receptacle 46 comes into contact with the abutment plate 47, so that the receptacle 46 is supported by the abutment plate 47. It becomes. Further, the receiving member 46 receives the return of the spring 45, and the electrode material 50 is held between the receiving member 46 and the pressing member 41. Then, the cutting tool 42 of the pressing tool 41 is received by the recess 48 of the receiving tool 46 through the electrode material 50, whereby the cutting tool 42 and the recess 48 are engaged. Since the electrode material 50 is pushed into the recess 48 of the receiver 46 by the cam crest 41 a of the presser 41, friction occurs between the electrode material 50 and the inner surface of the recess 48. In this way, the electrode material 50 is cut along the short direction in a state where the electrode material 50 is constrained by the recess 48. At this time, since the electrode material 50 is cut in a state where tension is applied, the electrode material 50 is prevented from being wrinkled due to the cutting at the time of cutting.

図４に示すように、押さえ具４１及び受け具４６によって、電極材料５０は、二点鎖線で示す切断線Ｃに沿って切断される。切断線Ｃは、電極材料５０の長手方向において、２枚の正極電極２１の間に位置している。   As shown in FIG. 4, the electrode material 50 is cut along a cutting line C indicated by a two-dot chain line by the pressing tool 41 and the receiving tool 46. The cutting line C is located between the two positive electrodes 21 in the longitudinal direction of the electrode material 50.

また、刃具４２と凹部４８とが係合するときには、受け具４６の熱源４９が加熱される。このため、受け具４６の熱源４９が電極材料５０の表面に当接することにより、第１セパレータ材料５１及び第２セパレータ材料５２における短手方向に沿って接合部３１が形成される。この短手方向に沿う接合部３１は、電極材料５０の長手方向において、２枚の正極電極２１の間に位置している。また、上記短手方向に沿う接合部３１のうち、第１セパレータ材料５１及び第２セパレータ材料５２の長手方向における中間位置に切断線Ｃが位置している。そして、電極材料５０が切断線Ｃに沿って切断されることにより、切断後の電極材料５０である電極収納セパレータ２５では、上記短手方向に沿う接合部３１のうち、切断線Ｃよりも電極材料５０の搬送方向の下流側に位置する部分の接合部３１が正極電極２１の端縁２１ｃに沿って位置するものとなる。また、切断後の電極材料５０である電極収納セパレータ２５では、上記短手方向に沿う接合部３１のうち、切断線Ｃよりも電極材料５０の搬送方向の上流側に位置する部分の接合部３１が正極電極２１の端縁２１ｄに沿って位置するものとなる。したがって、第１セパレータ２５ａ及び第２セパレータ２５ｂにおいて、正極電極２１の各端縁２１ａ，２１ｂ，２１ｃ，２１ｄからはみ出すはみ出し部３０ａ，３０ｂ，３０ｃ，３０ｄに接合部３１を有する電極収納セパレータ２５を製造することができる。   Further, when the cutting tool 42 and the recess 48 are engaged, the heat source 49 of the receiving tool 46 is heated. For this reason, when the heat source 49 of the receiver 46 abuts on the surface of the electrode material 50, the joint portion 31 is formed along the short direction of the first separator material 51 and the second separator material 52. The joint portion 31 along the short direction is located between the two positive electrodes 21 in the longitudinal direction of the electrode material 50. Moreover, the cutting line C is located in the intermediate position in the longitudinal direction of the 1st separator material 51 and the 2nd separator material 52 among the junction parts 31 along the said transversal direction. Then, by cutting the electrode material 50 along the cutting line C, in the electrode storage separator 25 that is the electrode material 50 after cutting, the electrode 31 is more electrode than the cutting line C in the joint portion 31 along the short direction. A portion of the joint portion 31 located on the downstream side in the conveyance direction of the material 50 is located along the edge 21 c of the positive electrode 21. Moreover, in the electrode storage separator 25 which is the electrode material 50 after cutting, the joint portion 31 of the portion located on the upstream side in the transport direction of the electrode material 50 from the cutting line C in the joint portion 31 along the short direction. Is located along the edge 21 d of the positive electrode 21. Therefore, in the first separator 25a and the second separator 25b, the electrode storage separator 25 having the joint portions 31 at the protruding portions 30a, 30b, 30c, and 30d protruding from the respective edges 21a, 21b, 21c, and 21d of the positive electrode 21 is manufactured. can do.

図３（ｄ）に示すように、電極材料５０の切断が完了すると、切り離された電極材料５０（電極収納セパレータ２５）が回収される。そして、受け具４６の熱源４９の加熱が停止される。また、電極材料５０のうち、切り離された電極材料５０よりも上流部分が搬送される。この搬送に伴って、押さえ具４１の側面４１ｃが電極材料５０の表面に当接するため、押さえ具４１の回転に伴って第１セパレータ材料５１及び第２セパレータ材料５２の端縁５１ａ，５２ａ及び端縁５１ｂ，５２ｂにそれぞれ沿って接合部３１が引き続き形成される。   As shown in FIG. 3D, when the cutting of the electrode material 50 is completed, the separated electrode material 50 (electrode storage separator 25) is collected. Then, the heating of the heat source 49 of the receiver 46 is stopped. Further, the upstream portion of the electrode material 50 from the separated electrode material 50 is conveyed. Along with this conveyance, the side surface 41 c of the pressing member 41 comes into contact with the surface of the electrode material 50, so that the edges 51 a, 52 a and the end of the first separator material 51 and the second separator material 52 are rotated with the rotation of the pressing member 41. Joints 31 are subsequently formed along the edges 51b and 52b, respectively.

そして、図３（ｅ）に示すように、押さえ具４１の回転によって、押さえ具４１における電極材料５０への当接部分がカム山４１ａからずれるに伴って、電極材料５０に付与されたテンションが弱まる。このため、ばね４５が伸びて、受け具４６が押さえ具４１に対し接近する方向に変位する。こうした押さえ具４１及び受け具４６の動作が繰り返されることにより、電極材料５０の溶着及び電極材料５０の切断が連続的に行われる。   And as shown in FIG.3 (e), the tension | tensile_strength provided to the electrode material 50 was accompanied by the contact part to the electrode material 50 in the pressing tool 41 having shifted | deviated from the cam peak 41a by rotation of the pressing tool 41. Weaken. For this reason, the spring 45 is extended, and the receiving tool 46 is displaced in a direction approaching the pressing tool 41. By repeating the operations of the presser 41 and the receiver 46, the welding of the electrode material 50 and the cutting of the electrode material 50 are continuously performed.

したがって、本実施形態によれば、以下に示す効果を得ることができる。
（１）押さえ具４１の刃具４２と受け具４６の凹部４８とが係合する際に、押さえ具４１のカム山４１ａによって電極材料５０が凹部４８に向けて押し込まれる。したがって、切断時に電極材料５０に適切なテンションを掛けることができる。 Therefore, according to the present embodiment, the following effects can be obtained.
(1) When the cutting tool 42 of the pressing tool 41 and the recess 48 of the receiving tool 46 are engaged, the electrode material 50 is pushed toward the recess 48 by the cam crest 41 a of the pressing tool 41. Therefore, an appropriate tension can be applied to the electrode material 50 at the time of cutting.

（２）電極材料５０の切断と第１セパレータ材料５１及び第２セパレータ材料５２の溶着とを、押さえ具４１及び受け具４６によって行うことができる。したがって、製造装置４０の設備を減らすことができ、製造ラインを短くすることができる。   (2) The cutting of the electrode material 50 and the welding of the first separator material 51 and the second separator material 52 can be performed by the pressing tool 41 and the receiving tool 46. Therefore, the equipment of the manufacturing apparatus 40 can be reduced and the manufacturing line can be shortened.

（３）電極材料５０の切断に際しては、電極材料５０への押さえ具４１のカム山４１ａの当接と併せて、ばね４５が縮まることにより受け具４６が押さえ具４１から離間する方向に変位する。このため、電極材料５０の切断時に押さえ具４１の刃具４２に作用する摩擦を低下させることができるため、刃具４２の耐摩耗性を向上させることができる。   (3) When cutting the electrode material 50, the spring 45 is contracted together with the contact of the cam crest 41 a of the presser 41 with the electrode material 50, so that the receiving tool 46 is displaced in a direction away from the presser 41. . For this reason, since the friction which acts on the cutting tool 42 of the pressing tool 41 at the time of the cutting | disconnection of the electrode material 50 can be reduced, the abrasion resistance of the cutting tool 42 can be improved.

なお、上記実施形態は以下のように変更してもよい。
○ 図７に示すように、幅方向において、すなわち電極材料５０の搬送方向において、分割された受け具１４６を採用しても良い。この形態の受け具１４６では、分割された受け具１４６のそれぞれの支持面１４６ａに切り欠き１４８ａを有しており、この切り欠き１４８ａが両側から合わさることにより凹部１４８が形成されている。また、受け具１４６は、分割された受け具１４６のそれぞれが個別にばね１４５を有しているため、分割された受け具１４６のそれぞれが独立して変動可能である。こうした形態によれば、上記実施形態で得ることができる効果（１）〜（３）に加えて、以下の効果を得ることができる。 In addition, you may change the said embodiment as follows.
As shown in FIG. 7, a divided receiver 146 may be employed in the width direction, that is, in the conveying direction of the electrode material 50. In this form of the receiver 146, each support surface 146a of the divided receiver 146 has a notch 148a, and the recess 148 is formed by joining the notch 148a from both sides. Moreover, since each of the divided receivers 146 has the spring 145 individually, each of the divided receivers 146 can be varied independently. According to such a form, in addition to the effects (1) to (3) that can be obtained in the above embodiment, the following effects can be obtained.

（４）受け具１４６に押さえ具４１のカム山４１ａが当接する際に、分割された受け具１４６がそれぞれ独立して押し下げられる。そして、電極材料５０は、分割された受け具１４６のそれぞれと当接しながら押し下げられるため、分割された受け具１４６のそれぞれに沿ってテンションが掛けられる。したがって、切断時に電極材料５０により適切なテンションを掛けることができる。   (4) When the cam crest 41a of the presser 41 comes into contact with the receiver 146, the divided receivers 146 are pressed down independently. Since the electrode material 50 is pushed down while being in contact with each of the divided receivers 146, a tension is applied along each of the divided receivers 146. Therefore, an appropriate tension can be applied by the electrode material 50 at the time of cutting.

○ 図８に示す受け具２４６のように、支持面２４６ａを押さえ具４１のカム山４１ａの頂点部分の軌跡に沿う湾曲面としても良い。この形態の受け具２４６は、湾曲面としての支持面２４６ａに凹部２４８を有する。そして、押さえ具４１と受け具２４６の支持面２４６ａとで電極材料５０を挟む。こうした形態によれば、上記実施形態で得ることができる効果（１）〜（３）に加えて、以下の効果を得ることができる。   As shown in FIG. 8, the support surface 246 a may be a curved surface that follows the locus of the apex portion of the cam crest 41 a of the presser 41. The receiver 246 of this form has a recess 248 on a support surface 246a as a curved surface. Then, the electrode material 50 is sandwiched between the presser 41 and the support surface 246 a of the receiver 246. According to such a form, in addition to the effects (1) to (3) that can be obtained in the above embodiment, the following effects can be obtained.

（５）押さえ具４１のカム山４１ａが電極材料５０に当接する際に、電極材料５０が湾曲面としての支持面２４６ａに沿って押し込まれていく。このため、電極材料５０の切断時に押さえ具４１の刃具４２に作用する摩擦を低下させることができるため、刃具４２の耐摩耗性を向上させることができる。   (5) When the cam crest 41a of the presser 41 comes into contact with the electrode material 50, the electrode material 50 is pushed in along the support surface 246a as a curved surface. For this reason, since the friction which acts on the cutting tool 42 of the pressing tool 41 at the time of the cutting | disconnection of the electrode material 50 can be reduced, the abrasion resistance of the cutting tool 42 can be improved.

○ 受け具４６，１４６，２４６の凹部４８，１４８，２４８の形状は断面矩形状に限らない。例えば、断面Ｖ字状であっても良いし、断面Ｕ字状であっても良い。
○ 受け具４６，１４６，２４６の全体の形状は、ローラ形状等、立方体状に限らない。要するに、受け具４６，１４６，２４６は、押さえ具４１の刃具４２を受け止め可能な凹部４８，１４８，２４８を支持面４６ａ，１４６ａ，２４６ａに有するものであれば良い。 The shape of the recesses 48, 148, 248 of the receivers 46, 146, 246 is not limited to a rectangular cross section. For example, it may have a V-shaped cross section or a U-shaped cross section.
The overall shape of the receivers 46, 146, 246 is not limited to a cube shape such as a roller shape. In short, the receiving tools 46, 146, and 246 may be any as long as the supporting surfaces 46a, 146a, and 246a have recesses 48, 148, and 248 that can receive the cutting tool 42 of the pressing tool 41.

○ 当て板４７を省略しても良い。
○ 受け具４６，１４６，２４６の熱源４９は、電極材料５０の長手方向に沿って接合部３１を形成可能であっても良い。すなわち、熱源４９を、受け具４６，１４６，２４６における幅方向に延設させて支持面４６ａ，１４６ａ，２４６ａに位置させても良い。また、受け具４６，１４６，２４６の熱源４９は、電極材料５０の短手方向と長手方向とに沿って接合部３１を形成可能であっても良い。 ○ The contact plate 47 may be omitted.
The heat source 49 of the receivers 46, 146 and 246 may be capable of forming the joint portion 31 along the longitudinal direction of the electrode material 50. That is, the heat source 49 may be extended in the width direction of the receivers 46, 146, 246 and positioned on the support surfaces 46a, 146a, 246a. Further, the heat source 49 of the receivers 46, 146, 246 may be capable of forming the joint portion 31 along the short side direction and the long side direction of the electrode material 50.

○ 押さえ具４１の熱源４４は、電極材料５０の短手方向に沿って接合部３１を形成可能であっても良い。すなわち、熱源４４を、押さえ具４１における厚み方向に延設させてカム山４１ａに位置させても良い。また、押さえ具４１の熱源４４は、電極材料５０の長手方向と短手方向とに沿って接合部３１を形成可能であっても良い。   The heat source 44 of the presser 41 may be capable of forming the joint portion 31 along the short direction of the electrode material 50. That is, the heat source 44 may be extended in the thickness direction of the presser 41 and positioned on the cam crest 41a. Further, the heat source 44 of the pressing tool 41 may be capable of forming the joint portion 31 along the longitudinal direction and the short direction of the electrode material 50.

○ 押さえ具４１及び受け具４６，１４６，２４６の熱源４４，４９は、電極材料５０の長手方向に沿う２組の接合部３１のうちの一方の接合部３１を形成可能であっても良い。こうした形態では、例えば押さえ具４１及び受け具４６，１４６，２４６とは別の設備によって、電極材料５０の長手方向に沿う残りの接合部３１を形成する。   The heat sources 44 and 49 of the presser 41 and the receivers 46, 146, and 246 may be capable of forming one of the two joints 31 along the longitudinal direction of the electrode material 50. In such a form, for example, the remaining joint 31 along the longitudinal direction of the electrode material 50 is formed by equipment different from the presser 41 and the receivers 46, 146, and 246.

○ 押さえ具４１の熱源４４と受け具４６，１４６，２４６の熱源４９とのいずれか一方を省略しても良い。この形態では、例えば押さえ具４１及び受け具４６，１４６，２４６とは別の設備によって、電極材料５０における熱源４４，４９が形成しない部分の接合部３１を形成する。   One of the heat source 44 of the presser 41 and the heat source 49 of the receivers 46, 146 and 246 may be omitted. In this embodiment, for example, the joint portion 31 of the electrode material 50 where the heat sources 44 and 49 are not formed is formed by equipment different from the pressing tool 41 and the receiving tools 46, 146 and 246.

○ 押さえ具４１の熱源４４と受け具４６，１４６，２４６の熱源４９との両方を省略しても良い。この形態では、例えば押さえ具４１及び受け具４６，１４６，２４６とは別の設備によって、電極材料５０における接合部３１を形成する。   Both the heat source 44 of the presser 41 and the heat source 49 of the receivers 46, 146 and 246 may be omitted. In this embodiment, for example, the joint portion 31 in the electrode material 50 is formed by equipment different from the presser 41 and the receivers 46, 146, 246.

○ 刃具４２と凹部４８との係合によって、電極材料５０が長手方向に沿って切断されても良い。
○ 電極収納セパレータ２５は、１枚のセパレータを二つ折りにして構成しても良い。この場合では、製造装置４０の押さえ具４１における熱源４４を１組にする等により、電極材料５０の溶着箇所を少なくできる。 The electrode material 50 may be cut along the longitudinal direction by the engagement between the cutting tool 42 and the recess 48.
The electrode storage separator 25 may be configured by folding one separator in half. In this case, the number of welding locations of the electrode material 50 can be reduced by, for example, making one set of heat sources 44 in the presser 41 of the manufacturing apparatus 40.

○ 電極収納セパレータ２５に収納する電極を負極電極２６に変更しても良い。
○ 製造装置４０を正極電極２１や負極電極２６を製造する製造装置としても良い。この形態の製造装置４０では、電極材料５０として、長尺帯状の正極金属箔２２や長尺帯状の負極金属箔２７を搬送させる。そして、押さえ具４１及び受け具４６のいずれも熱源４４，４９を有さず、これら押さえ具４１及び受け具４６によって電極材料５０の切断は行われるものの、電極材料５０の溶着は行われない。 The electrode stored in the electrode storage separator 25 may be changed to the negative electrode 26.
The manufacturing apparatus 40 may be a manufacturing apparatus that manufactures the positive electrode 21 and the negative electrode 26. In the manufacturing apparatus 40 of this embodiment, as the electrode material 50, the long strip-like positive electrode metal foil 22 and the long strip-like negative electrode metal foil 27 are conveyed. Neither the presser 41 nor the receiver 46 has the heat sources 44 and 49, and the electrode material 50 is cut by the presser 41 and the receiver 46, but the electrode material 50 is not welded.

○ 正極金属箔２２として、アルミニウム以外の金属からなる箔を採用してもよい。
○ 負極金属箔２７として、銅以外の金属からなる箔を採用してもよい。
○ 正極電極２１の片面のみが正極活物質層２３を有していてもよい。 As the positive electrode metal foil 22, a foil made of a metal other than aluminum may be adopted.
As the negative electrode metal foil 27, a foil made of a metal other than copper may be adopted.
○ Only one side of the positive electrode 21 may have the positive electrode active material layer 23.

○ 負極電極２６の片面のみが負極活物質層２８を有していてもよい。
○ 二次電池１０は、リチウムイオン二次電池であったが、これに限らず、他の二次電池であってもよい。要するに、正極活物質層と負極活物質層との間をイオンが移動するとともに電荷の授受を行うものであればよい。 ○ Only one side of the negative electrode 26 may have the negative electrode active material layer 28.
The secondary battery 10 is a lithium ion secondary battery, but is not limited thereto, and may be another secondary battery. In short, any ion may be used as long as ions move between the positive electrode active material layer and the negative electrode active material layer and transfer charge.

○ ケース１１の形状を変更してもよい。例えば、ケース１１は円筒型でもよい。
○ 本発明を、電気二重層キャパシタ等の蓄電装置に具体化してもよい。
次に、上記実施形態及び別例から把握できる技術的思想について追記する。 ○ The shape of the case 11 may be changed. For example, the case 11 may be cylindrical.
The present invention may be embodied in a power storage device such as an electric double layer capacitor.
Next, a technical idea that can be grasped from the above embodiment and another example will be additionally described.

（イ）前記電極は蓄電装置に備えられた電極組立体を構成し、前記蓄電装置は二次電池である。   (A) The electrode constitutes an electrode assembly provided in a power storage device, and the power storage device is a secondary battery.

１０…二次電池、１１…ケース、１２…電極組立体、２１…正極電極、２５…電極収納セパレータ、２６…負極電極、３１…接合部、４０…製造装置、４１…押さえ具、４１ａ…カム山、４２…刃具、４４，４９…熱源、４５，１４５…ばね、４６，１４６，２４６…受け具、４６ａ，１４６ａ，２４６ａ…支持面、４８，１４８，２４８…凹部。   DESCRIPTION OF SYMBOLS 10 ... Secondary battery, 11 ... Case, 12 ... Electrode assembly, 21 ... Positive electrode, 25 ... Electrode storage separator, 26 ... Negative electrode, 31 ... Joint part, 40 ... Manufacturing apparatus, 41 ... Presser, 41a ... Cam Mountain, 42 ... Blade tool, 44,49 ... Heat source, 45,145 ... Spring, 46,146,246 ... Receiver, 46a, 146a, 246a ... Support surface, 48,148,248 ... Recess.

Claims (3)

回転可能なカム形状であって、カム山に刃具を有する押さえ具と、
前記押さえ具に対し接近する方向に付勢されるとともに、前記刃具を受け止め可能な凹部を有する受け具とを備え、
前記押さえ具と前記受け具とが帯状の電極材料を挟んで位置し、
前記刃具と前記凹部との係合により前記帯状の電極材料が切断される電極の製造装置であって、
前記受け具は、前記帯状の電極材料の搬送方向に分割されており、分割されたそれぞれが独立して変動可能である電極の製造装置。 A rotatable cam shape having a cutting tool on the cam crest;
A biasing tool that is biased in a direction approaching the pressing tool and has a recess capable of receiving the cutting tool;
The pressing tool and the receiving tool are positioned with a band-shaped electrode material interposed therebetween,
An electrode manufacturing apparatus in which the band-shaped electrode material is cut by engagement of the blade and the recess ,
The said receiving tool is divided | segmented in the conveyance direction of the said strip | belt-shaped electrode material, The manufacturing apparatus of the electrode which can be fluctuate | varied independently each divided | segmented. 前記帯状の電極材料は、電極の両面が帯状のセパレータ材料で挟まれたものであり、
前記押さえ具と前記受け具とのうちの少なくとも一方に前記セパレータ材料同士を溶着する熱源を備える請求項１に記載の電極の製造装置。 The band-shaped electrode material is one in which both sides of the electrode are sandwiched between band-shaped separator materials,
The electrode manufacturing apparatus according to claim 1, further comprising a heat source that welds the separator materials to at least one of the presser and the receiver. 前記受け具は、湾曲面に前記凹部を有し、
前記押さえ具と前記受け具の前記湾曲面とで前記帯状の電極材料を挟む請求項１又は請求項２に記載の電極の製造装置。 The receptacle has the concave portion on a curved surface,
The electrode manufacturing apparatus according to claim 1, wherein the band-shaped electrode material is sandwiched between the pressing member and the curved surface of the receiving member.
JP2014054587A 2014-03-18 2014-03-18 Electrode manufacturing equipment Active JP6225773B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2014054587A JP6225773B2 (en) 2014-03-18 2014-03-18 Electrode manufacturing equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2014054587A JP6225773B2 (en) 2014-03-18 2014-03-18 Electrode manufacturing equipment

Publications (2)

Publication Number Publication Date
JP2015176847A JP2015176847A (en) 2015-10-05
JP6225773B2 true JP6225773B2 (en) 2017-11-08

Family

ID=54255838

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2014054587A Active JP6225773B2 (en) 2014-03-18 2014-03-18 Electrode manufacturing equipment

Country Status (1)

Country Link
JP (1) JP6225773B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110355259B (en) * 2019-08-07 2024-06-07 深圳市光大激光科技股份有限公司 High-speed pole piece cutting device and cutting method thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60165046A (en) * 1984-02-07 1985-08-28 Matsushita Electric Ind Co Ltd Cutting device for separator
JPS62202462A (en) * 1986-02-28 1987-09-07 Shin Kobe Electric Mach Co Ltd Manufacture of lead-acid battery
JP2002075334A (en) * 2000-08-24 2002-03-15 Furukawa Battery Co Ltd:The Method for cutting belt-shaped plate

Also Published As

Publication number Publication date
JP2015176847A (en) 2015-10-05

Similar Documents

Publication Publication Date Title
JP6679829B2 (en) Electric storage device separator accommodating electrode body, electric storage device electrode assembly, and electric storage device manufacturing apparatus
JP5716701B2 (en) Manufacturing method and manufacturing apparatus of laminated electrode body
KR101775241B1 (en) Electrode body and electrode body manufacturing method
JP4402134B2 (en) Multilayer secondary battery and manufacturing method thereof
KR20200023854A (en) Electrode assembly manufacturing equipment
CN102893439A (en) Battery
JP2015026562A (en) Band-like electrode manufacturing method and band-like electrode cutting device
JP2013222602A (en) Method for manufacturing laminated type cell and laminated electrode body
JP6225773B2 (en) Electrode manufacturing equipment
JP6274461B2 (en) Electrochemical cell and method for producing electrochemical cell
JP2017076478A (en) Folding type secondary battery
JP6364854B2 (en) Separator joining device for electrical devices
JP5765295B2 (en) Power storage device and method for manufacturing electrode assembly
JP2017157346A (en) Manufacturing apparatus of separator material, manufacturing method of separator material, and manufacturing method of electrode housing separator
KR101748466B1 (en) Cutting apparatus for secondary battery
JP2017098022A (en) Separator welding device
JP6520210B2 (en) APPARATUS FOR MANUFACTURING SEPARATOR ELECTRODE, AND METHOD FOR MANUFACTURING SEPARATOR ELECTRODE
JP6413277B2 (en) Electric device separator bonding method, electric device separator bonding apparatus, and electric device
JP2021028896A (en) Manufacturing method of power storage device
JP6565443B2 (en) Separator electrode manufacturing apparatus and separator electrode manufacturing method
JP6582426B2 (en) Method for manufacturing electrode separator assembly
JP6809139B2 (en) Electrode manufacturing equipment
JP2019186172A (en) Electrode manufacturing method and electrode manufacturing facility
JP6528457B2 (en) APPARATUS FOR MANUFACTURING SEPARATOR ELECTRODE, AND METHOD FOR MANUFACTURING SEPARATOR ELECTRODE
JP2018014222A (en) Electrode manufacturing method

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20160610

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20170321

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20170328

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20170515

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20170912

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20170925

R151 Written notification of patent or utility model registration

Ref document number: 6225773

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R151