JPH11354110A - Sealed battery electrode plate and its manufacture - Google Patents

Sealed battery electrode plate and its manufacture

Info

Publication number
JPH11354110A
JPH11354110A JP10162486A JP16248698A JPH11354110A JP H11354110 A JPH11354110 A JP H11354110A JP 10162486 A JP10162486 A JP 10162486A JP 16248698 A JP16248698 A JP 16248698A JP H11354110 A JPH11354110 A JP H11354110A
Authority
JP
Japan
Prior art keywords
active material
electrode plate
current collector
sealed battery
coated
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
Application number
JP10162486A
Other languages
Japanese (ja)
Inventor
Masato Kadoguchi
正人 門口
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.)
Mitsubishi Cable Industries Ltd
Original Assignee
Mitsubishi Cable Industries Ltd
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 Mitsubishi Cable Industries Ltd filed Critical Mitsubishi Cable Industries Ltd
Priority to JP10162486A priority Critical patent/JPH11354110A/en
Publication of JPH11354110A publication Critical patent/JPH11354110A/en
Pending legal-status Critical Current

Links

Classifications

    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Landscapes

  • Connection Of Batteries Or Terminals (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PROBLEM TO BE SOLVED: To provide an electrode plate having excellent quality and a manufacturing method that can produce the electrode plate and improve productivity. SOLUTION: This electrode plate is manufactured by performing at least a process to form an applied part 2a to which an active material 4 is applied and a non-applied part 3a to which the active material 4 is not applied by intermittently applying the active material 4 to one plate surface 1a of a collector 1, a process to apply the active material 4 to the entire other surface 1b of the collector 1, and a process to form, on the other surface 1b, an applied part 2b to which the active material 4 is applied and a non-applied part 3b to which the active material 4 is not applied by peeling the active material 4 from regions 5 on the other surface 1b of the collector 1 corresponding to the non-applied part 3a.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は、密閉型電池の発電
要素を構成する電極板およびその製造方法に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrode plate constituting a power generating element of a sealed battery and a method of manufacturing the same.

【0002】[0002]

【従来の技術】密閉型電池は、電池缶内に、発電、充放
電を行なうための発電要素を封入して構成されたもので
ある。例えば、リチウムイオン電池やニッカド電池等に
おいては、正極用の電極板と負極用の電極板との間にセ
パレーターを挟み、これを渦巻き状に巻いて形成した発
電要素が用いられている。この発電要素を構成する電極
板は、金属製の板材(集電体)の両面に、活物質が塗工
された塗工部と活物質が塗工されていない未塗工部とが
形成されてなるものである。電極板の製造方法は、未塗
工部の形成方法の違いにより大きく二つに分けられる。
未塗工部は、間欠塗工法により形成される場合と、剥離
により形成される場合とがある。
2. Description of the Related Art A sealed battery is one in which a power generating element for performing power generation and charge / discharge is sealed in a battery can. For example, in a lithium-ion battery, a nickel-cadmium battery, or the like, a power generation element formed by sandwiching a separator between an electrode plate for a positive electrode and an electrode plate for a negative electrode and spirally winding the separator is used. The electrode plate constituting this power generating element has a coated portion coated with an active material and an uncoated portion not coated with an active material formed on both sides of a metal plate (current collector). It is. The method of manufacturing the electrode plate is roughly divided into two depending on the difference in the method of forming the uncoated portion.
The uncoated portion may be formed by an intermittent coating method or may be formed by peeling.

【0003】図3は、従来の密閉型電池の電極板の製造
方法の一例を示す図であり、未塗工部は間欠塗工法によ
り形成されている。なお、図3(a)〜(c)について
は断面図で示しており、図3(d)については平面図で
示している。図3(a)は活物質を集電体に塗工する塗
工工程を示す図である。活物質は集電体1の両面に間欠
塗工法により塗工されており、集電体1には、活物質が
塗布された塗工部2と活物質が塗工されていない未塗工
部3とが形成されている。図3(b)は圧延工程を示す
図である。集電体1の両面に設けられた塗工部2は圧延
ロール8で圧延されて所望の厚みに形成される。図3
(c)は切断工程を示す図である。集電体1は未塗工部
3(図中の点線)で切断され、切断された各部材が電極
板として完成される。図3(d)は完成された電極板1
0を示す図である。未塗工部3には、電池の端子に接続
するための電極タブ6が溶接されている。
FIG. 3 is a diagram showing an example of a conventional method for manufacturing an electrode plate of a sealed battery, and an uncoated portion is formed by an intermittent coating method. 3A to 3C are shown in cross-sectional views, and FIG. 3D is shown in a plan view. FIG. 3A is a diagram illustrating a coating step of coating the active material on the current collector. The active material is applied to both surfaces of the current collector 1 by an intermittent coating method. The current collector 1 has a coated portion 2 coated with the active material and an uncoated portion not coated with the active material. 3 are formed. FIG. 3B is a diagram illustrating a rolling process. The coating portions 2 provided on both surfaces of the current collector 1 are rolled by rolling rolls 8 to form a desired thickness. FIG.
(C) is a figure which shows a cutting process. The current collector 1 is cut at the uncoated portion 3 (dotted line in the figure), and each cut member is completed as an electrode plate. FIG. 3D shows the completed electrode plate 1.
FIG. An electrode tab 6 for connection to a terminal of the battery is welded to the uncoated portion 3.

【0004】図4は、図3に示す製造方法における間欠
塗工法を示す図である。図4(a)は集電体1に塗工部
2を形成しているところを示しており、図4(b)は板
状の集電体1に未塗工部を形成しているところを示して
いる。図4(a)に示すように、集電体1はロールA、
C、Dにより矢印の方向に送り出されている。ロールB
はペースト状の活物質4を送り出している。集電体1が
ロールAとBとの間を通ると、ロールBにより集電体の
一方の面に活物質4が塗工され塗工部2が形成される。
なお、7は塗工厚さを調整するためのコマロールであ
る。図4(b)に示すように、ロールAは移動可能に構
成されている。ロールAは所定の長さの塗工部2を形成
すると、集電体1に活物質4が塗工されないように移動
し、未塗工部を形成する。
FIG. 4 is a view showing an intermittent coating method in the manufacturing method shown in FIG. FIG. 4A shows a state where a coated part 2 is formed on the current collector 1, and FIG. 4B shows a state where an uncoated part is formed on the plate-shaped current collector 1. Is shown. As shown in FIG. 4A, the current collector 1 includes a roll A,
C and D are sent in the direction of the arrow. Roll B
Sends out the paste-like active material 4. When the current collector 1 passes between the rolls A and B, the active material 4 is applied to one surface of the current collector by the roll B, and a coating portion 2 is formed.
Reference numeral 7 denotes a coma roll for adjusting the coating thickness. As shown in FIG. 4B, the roll A is configured to be movable. When the roll A forms the coated portion 2 having a predetermined length, the roll A moves so that the active material 4 is not coated on the current collector 1, and forms an uncoated portion.

【0005】ところで、上記の間欠塗工法を用いた製造
方法においては、未塗工部3を形成するためにロールを
移動させる必要がある。そのため、活物質の塗工時間を
短縮するのが困難であり、生産性の向上が図れないとい
う問題がある。更に、圧延工程において、塗工部2と未
塗工部3とで集電体1の伸びが異なるため、集電体全体
にうねり(歪み)が発生することがある。このうねり
(歪み)は、作製された電極板をセパレーターと共に渦
巻き状に巻く際に、正極板と負極板とにズレを生じさ
せ、正極板と負極板との短絡を発生させてしまう場合が
ある。
Incidentally, in the manufacturing method using the above-mentioned intermittent coating method, it is necessary to move a roll in order to form the uncoated portion 3. Therefore, it is difficult to reduce the time for applying the active material, and there is a problem that productivity cannot be improved. Further, in the rolling step, the elongation of the current collector 1 differs between the coated portion 2 and the uncoated portion 3, and thus undulation (strain) may occur in the entire current collector. This undulation (distortion) may cause a gap between the positive electrode plate and the negative electrode plate when the produced electrode plate is spirally wound together with the separator, and may cause a short circuit between the positive electrode plate and the negative electrode plate. .

【0006】図5は、従来の密閉型電池の電極板の製造
方法の他の例を示す図であり、未塗工部は剥離により形
成されている。図5(a)〜(c)については断面図で
示しており、図5(d)については平面図で示してい
る。図5(a)は活物質を集電体に塗工する塗工工程を
示す図である。ペースト状の活物質4が集電体1の両面
全体に塗工されている。図5(b)は圧延工程を示す図
である。塗工された活物質4は圧延ロール8で圧延され
て所望の厚みとされる。図5(c)は剥離工程及び切断
工程を示す図である。所定の領域5の活物質が剥離され
て、集電体1に塗工部2と未塗工部3とが形成されてい
る。剥離方法としては、マスキングテープを用いた方法
や、超音波振動を利用した方法(特開昭63-40253号公
報、特開平2-186557号公報、特開平8-255611号公報)が
知られている。集電体1は未塗工部3(図中の太点線)
において切断され、切断された各部材が電極板として完
成される。図5(d)は完成された電極板10を示す図
である。図3(d)と同様に未塗工部3には、電池の端
子に接続するための電極タブ6が溶接されている。
FIG. 5 is a view showing another example of a conventional method for manufacturing an electrode plate of a sealed battery, in which an uncoated portion is formed by peeling. 5A to 5C are shown in cross-sectional views, and FIG. 5D is shown in a plan view. FIG. 5A is a diagram illustrating a coating step of coating the active material on the current collector. The paste-like active material 4 is applied to the entire surfaces of the current collector 1. FIG. 5B is a diagram illustrating a rolling process. The coated active material 4 is rolled by a rolling roll 8 to have a desired thickness. FIG. 5C is a diagram showing a peeling step and a cutting step. The active material in the predetermined region 5 is peeled off, and the coated portion 2 and the uncoated portion 3 are formed on the current collector 1. As a peeling method, a method using a masking tape and a method using ultrasonic vibration (JP-A-63-40253, JP-A-2-186557, JP-A-8-255611) are known. I have. Current collector 1 is uncoated part 3 (thick dotted line in the figure)
And each cut member is completed as an electrode plate. FIG. 5D shows the completed electrode plate 10. As in FIG. 3D, an electrode tab 6 for connection to a battery terminal is welded to the uncoated portion 3.

【0007】[0007]

【発明が解決しようとする課題】このように、剥離によ
り未塗工部を形成する製造方法においては、ロールを移
動させる必要がないため、活物質の塗工時間を短縮でき
る。更に、未塗工部を形成する前に圧延するため、集電
体にうねりが発生するのを抑制できる。
As described above, in the manufacturing method of forming an uncoated portion by peeling, it is not necessary to move the roll, so that the coating time of the active material can be reduced. Furthermore, since rolling is performed before forming an uncoated portion, it is possible to suppress occurrence of undulation in the current collector.

【0008】しかしながら、活物質の剥離に要する時間
の短縮が難しいため、結局のところ前述の製造方法と同
様に生産性の向上が図れないという問題がある。また、
圧延前の状態では活物質の集電体への接着性が低く、圧
延工程の後に剥離工程を行う必要があるため、未塗工部
の表面に細かい凹凸が形成されてしまう。そのため、未
塗工部に取り付けられた電極タブの電気特性や溶接性
が、前述した方法に比べて劣ってしまうという問題があ
る。更に、この凹凸の除去は極めて困難である。また、
活物質が完全に剥離されたかどうかを確認する必要があ
り、その分コストが高くなるという問題もある。
However, since it is difficult to reduce the time required for removing the active material, there is a problem that the productivity cannot be improved as in the above-described manufacturing method. Also,
Before rolling, the active material has low adhesion to the current collector, and a peeling step needs to be performed after the rolling step, so that fine irregularities are formed on the surface of the uncoated portion. Therefore, there is a problem that the electrical properties and weldability of the electrode tab attached to the uncoated portion are inferior to those described above. Further, it is extremely difficult to remove the unevenness. Also,
It is necessary to check whether the active material has been completely peeled off, and there is also a problem that the cost increases accordingly.

【0009】本発明の課題は、上記課題を解決し、優れ
た品質を有する電極板、およびその電極板を生産でき、
且つ、生産性の向上を図り得る電極板の製造方法を提供
することにある。
An object of the present invention is to solve the above-mentioned problems, to produce an electrode plate having excellent quality, and to produce the electrode plate.
Another object of the present invention is to provide a method for manufacturing an electrode plate that can improve productivity.

【0010】[0010]

【課題を解決するための手段】本発明の密閉型電池の電
極板の製造方法は次の特徴を有するものである。 (1) 密閉型電池の電極板の製造方法であって、 集電体の一方の面に、間欠的に活物質を塗工して、活
物質が塗工された塗工部と活物質が塗工されていない未
塗工部とを形成する工程と、 集電体の他方の面の全面に活物質を塗工する工程と、 集電体の他方の面における前記未塗工部に対応する領
域の活物質を剥離して、集電体の他方の面に、活物質が
塗工された塗工部と活物質が塗工されていない未塗工部
とを形成する工程とを少なくとも有することを特徴とす
る密閉型電池の電極板の製造方法。
The method for manufacturing an electrode plate of a sealed battery according to the present invention has the following features. (1) A method for manufacturing an electrode plate of a sealed battery, wherein an active material is applied intermittently to one surface of a current collector, and a coating part coated with the active material is coated with the active material. A step of forming an uncoated uncoated portion; a step of applying an active material to the entire surface of the other surface of the current collector; and a process corresponding to the uncoated portion of the other surface of the current collector. Peeling off the active material in the region to be formed, at least a step of forming a coated portion coated with the active material and an uncoated portion not coated with the active material on the other surface of the current collector. A method for producing an electrode plate for a sealed battery, comprising the steps of:

【0011】(2) 上記の工程において、一方の面
の未塗工部に対応する他方の面の領域を少なくとも覆う
ように粘着テープを貼付し、一方の面の未塗工部と前記
領域とを加熱および/または加圧し、前記粘着テープを
除去して活物質を剥離する上記(1)記載の密閉型電池
の電極板の製造方法。
(2) In the above step, an adhesive tape is applied so as to cover at least a region on the other surface corresponding to the uncoated portion on one surface, and the uncoated portion on one surface and the region The method for producing an electrode plate for a sealed battery according to the above (1), wherein the pressure-sensitive adhesive is heated and / or pressurized to remove the adhesive tape and peel off the active material.

【0012】(3) 上記の工程と上記の工程とが
終了した後、集電体の一方の面に形成された塗工部と、
他方の面の全面に塗工された活物質とを圧延する工程を
有している上記(1)記載の密閉型電池の電極板の製造
方法。
(3) After the above steps and the above steps are completed, a coating part formed on one surface of the current collector;
The method for producing an electrode plate for a sealed battery according to the above (1), comprising a step of rolling the active material coated on the entire surface of the other surface.

【0013】(4) 上記〜の工程において、複数
の塗工部と複数の未塗工部とが交互に連続して形成され
ており、上記〜の工程が終了した後、集電体を未塗
工部で切断する工程を有する上記(1)記載の密閉型電
池の電極板の製造方法。
(4) In the above steps (1) to (4), a plurality of coated parts and a plurality of uncoated parts are formed alternately and continuously. The method for producing an electrode plate for a sealed battery according to the above (1), comprising a step of cutting at a coating section.

【0014】(5) 上記間欠的に活物質を塗工して形
成された未塗工部に、密閉型電池の端子と接続するため
の電極タブを溶接して取り付ける工程を有している上記
(1)記載の密閉型電池の電極板の製造方法。
(5) The step of welding and attaching an electrode tab for connecting to a terminal of a sealed battery to the uncoated portion formed by intermittently applying an active material. (1) The method for producing an electrode plate of a sealed battery according to (1).

【0015】また、本発明の密閉型電池の電極板は次の
特徴を有するものである。(6) 上記(1)〜(5)
のいずれかに記載の製造方法によって製造されたことを
特徴とする密閉型電池の電極板。
The electrode plate of the sealed battery according to the present invention has the following features. (6) The above (1) to (5)
An electrode plate for a sealed battery manufactured by the manufacturing method according to any one of the above.

【0016】[0016]

【作用】上記したように本発明の電極板の製造方法にお
いては、板材の一方の面の未塗工部は間欠的に活物質を
塗工して形成されており、他方の面の未塗工部は活物質
を剥離することにより形成されている。従って、間欠塗
工のみの製造方法に比べて塗工時間を短縮できる。ま
た、上記の剥離される活物質は圧延されても、圧延の際
この活物質の反対側の面の対応する領域は未塗工部とな
っているため、図5に示した場合に比べて集電体との密
着性が低いものとなっている。そのため、この活物質は
容易に剥離でき、本発明においては剥離に要する時間を
短縮できる。さらに、剥離は片面のみで行うため、剥離
面の品質確認に要する時間も短縮できる。
As described above, in the method of manufacturing an electrode plate according to the present invention, the uncoated portion on one surface of the plate is formed by intermittently coating the active material, and the uncoated portion on the other surface is formed. The engineered part is formed by peeling the active material. Therefore, the coating time can be reduced as compared with the manufacturing method using only the intermittent coating. Further, even if the above-mentioned separated active material is rolled, the corresponding area on the surface on the opposite side of the active material during rolling is an uncoated portion, and therefore, compared to the case shown in FIG. Adhesion with the current collector is low. Therefore, the active material can be easily separated, and in the present invention, the time required for the separation can be reduced. Furthermore, since the peeling is performed only on one side, the time required for checking the quality of the peeled surface can be reduced.

【0017】[0017]

【発明の実施の形態、実施例】以下、本発明を図を用い
て詳細に説明する。図1は、本発明の密閉型電池の電極
板およびその製造方法の一例を示す図である。図1
(a)〜(d)については断面図で示しており、図1
(e)については平面図で示している。図1の例に示す
ように、本発明の密閉型電池の電極板10は、(1)集
電体1の一方の面1aに、間欠的に活物質を塗工して、
活物質が塗工された塗工部2aと活物質が塗工されてい
ない未塗工部3aとを形成する工程と、(2)集電体1
の他方の面1bの全面に活物質4を塗工する工程と、
(3)集電体1の他方の面1bにおいて、未塗工部3a
に対応する領域5の活物質を剥離して、活物質が塗工さ
れた塗工部2bと活物質が塗工されていない未塗工部3
bとを形成する工程とを少なくとも経て製造されてい
る。
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a diagram illustrating an example of an electrode plate of a sealed battery according to the present invention and a method for manufacturing the electrode plate. FIG.
FIGS. 1A to 1D are cross-sectional views, and FIG.
(E) is shown in a plan view. As shown in the example of FIG. 1, the electrode plate 10 of the sealed battery according to the present invention includes: (1) an active material intermittently applied to one surface 1 a of the current collector 1;
A step of forming a coated part 2a coated with the active material and an uncoated part 3a not coated with the active material; (2) the current collector 1
Coating the active material 4 over the entire surface of the other surface 1b of
(3) On the other surface 1b of the current collector 1, the uncoated portion 3a
The active material in the region 5 corresponding to the active material is peeled off, and the coated portion 2b on which the active material is coated and the uncoated portion 3 on which the active material is not coated.
b) and at least a step of forming b.

【0018】図1(a)は、集電体1の一方の面1a
に、間欠的に活物質を塗工し、複数の塗工部2aと複数
の未塗工部3aとを交互に連続して形成する工程を示し
ている。図1(b)は、集電体1の他方の面1bの全面
に、活物質4を塗工する工程を示している。図1(c)
は、集電体1を圧延する工程を示している。塗工部2a
と塗工された活物質4とは圧延ロール8によって所望の
厚みに形成されている。図1(d)は、集電体1の他方
の面1bにおいて、未塗工部3aに対応する領域5の活
物質4を剥離し、塗工部2bと未塗工部3bとを形成す
る工程を示している。なお、領域5の活物質4は圧延さ
れているが、その反対側の面は未塗工部3aであるた
め、集電体との密着性は小さく、容易に剥離できる状態
にある。集電体1は、未塗工部3a及び3b(図中の太
点線)において切断され、切断された各部材が電極板と
して完成される。図1(e)は、未塗工部に電池の端子
と接続するための電極タブ6を取り付ける工程と、完成
された本発明の電極板10とを示している。電極タブ6
は一方の面1aに形成した未塗工部3aに溶接されてい
る。
FIG. 1A shows one surface 1 a of the current collector 1.
2 shows a process in which the active material is intermittently applied to form a plurality of coated portions 2a and a plurality of uncoated portions 3a alternately and continuously. FIG. 1B shows a step of applying the active material 4 to the entire surface of the other surface 1 b of the current collector 1. FIG. 1 (c)
Shows a step of rolling the current collector 1. Coating part 2a
The coated active material 4 is formed to a desired thickness by a rolling roll 8. FIG. 1D shows that, on the other surface 1 b of the current collector 1, the active material 4 in a region 5 corresponding to the uncoated portion 3 a is peeled to form a coated portion 2 b and an uncoated portion 3 b. The steps are shown. Although the active material 4 in the region 5 is rolled, the surface on the opposite side is the uncoated portion 3a, so that the adhesiveness with the current collector is small and the active material 4 can be easily peeled off. The current collector 1 is cut at the uncoated portions 3a and 3b (thick dotted lines in the drawing), and each cut member is completed as an electrode plate. FIG. 1 (e) shows a step of attaching an electrode tab 6 for connecting a battery terminal to an uncoated portion, and a completed electrode plate 10 of the present invention. Electrode tab 6
Is welded to the uncoated portion 3a formed on one surface 1a.

【0019】このように本発明の製造方法では、集電体
1の一方の面1aにおいて未塗工部3aは間欠的に活物
質を塗工することで形成され、他方の面1bにおいて未
塗工部3bは剥離によって形成される。従って、本発明
の製造方法により密閉型電池の電極板を製造すれば、従
来に比べて生産性の向上を図ることができる。
As described above, in the manufacturing method of the present invention, the uncoated portion 3a on one surface 1a of the current collector 1 is formed by intermittently applying the active material, and the uncoated portion 3a is formed on the other surface 1b. The processing portion 3b is formed by peeling. Therefore, when the electrode plate of the sealed battery is manufactured by the manufacturing method of the present invention, the productivity can be improved as compared with the related art.

【0020】また、圧延の前に塗工部と未塗工部とが形
成されているのは片面だけであるので、圧延の際に集電
体に生じるうねり(歪み)は従来に比べて小さく、完成
された電極板を渦巻き状に巻いた場合に従来のような問
題が生じることもない。更に、図1(e)に示すように
電極タブ6は、間欠的に活物質を塗工することで形成さ
れた未塗工部3aに取り付けられるため、活物質の剥離
のみによって未塗工部を形成する従来の方法と異なり、
未塗工部における剥離状態の確認を行う必要がない。ま
た、剥離によって形成された未塗工部3bに凹凸が形成
されていても、電極タブの電気特性や溶接性に悪影響が
生じることもない。
Further, since the coated portion and the uncoated portion are formed only on one side before rolling, the undulation (distortion) generated on the current collector during rolling is smaller than in the conventional case. In addition, when the completed electrode plate is spirally wound, the conventional problem does not occur. Further, as shown in FIG. 1 (e), the electrode tab 6 is attached to the uncoated portion 3a formed by intermittently applying the active material. Unlike traditional methods of forming
There is no need to check the peeling state in the uncoated part. Further, even if the uncoated portion 3b formed by peeling has irregularities, there is no adverse effect on the electrical properties and weldability of the electrode tab.

【0021】本発明において活物質を間欠的に塗工する
方法としては、前述した従来より用いられている間欠塗
工法を利用することができるが、これに限定されるもの
ではなく、集電体の面上に部分的に活物質を塗工できる
方法であれば良い。
As a method of intermittently applying the active material in the present invention, the above-described conventional intermittent coating method can be used. However, the present invention is not limited thereto. Any method can be used as long as the active material can be partially applied on the surface of the substrate.

【0022】図2は本発明の密閉型電池の電極板の製造
方法の他の例を示す図である。図2では、集電体の片面
の全面に塗工された活物質を剥離して塗工部と未塗工部
とを形成する工程のみを示している。図2の例に示すよ
うに、未塗工部3aに対応する他方の面1bの領域5を
少なくとも覆うように粘着テープ21を貼付し、未塗工
部3aと領域5とを加熱・加圧し、粘着テープ21を除
去することにより、領域5における活物質4が剥離さ
れ、他方の面1bの塗工部2bと未塗工部3bとが形成
されている。
FIG. 2 is a view showing another example of a method for manufacturing an electrode plate of a sealed battery according to the present invention. FIG. 2 shows only a step of forming a coated portion and an uncoated portion by peeling off the active material coated on one entire surface of the current collector. As shown in the example of FIG. 2, an adhesive tape 21 is applied so as to cover at least the area 5 of the other surface 1b corresponding to the uncoated part 3a, and the uncoated part 3a and the area 5 are heated and pressed. By removing the adhesive tape 21, the active material 4 in the region 5 is peeled off, and the coated portion 2b and the uncoated portion 3b on the other surface 1b are formed.

【0023】図2(a)は、粘着テープ21を貼付する
工程を示している。粘着テープ21は活物質4の上から
集電体の他方の面1bを覆っている。図2(b)は、未
塗工部3aと領域5とを加熱・加圧する工程を示してい
る。加熱・加圧は、サーマルヘッド22により行われて
いる。図2(c)は、粘着テープ21を除去する工程を
示している。領域5における活物質は粘着テープ21と
共に剥離され、領域5に未塗工部3bが形成されてい
る。
FIG. 2A shows a step of attaching the adhesive tape 21. The adhesive tape 21 covers the other surface 1 b of the current collector from above the active material 4. FIG. 2B shows a step of heating and pressurizing the uncoated portion 3 a and the region 5. Heating and pressurization are performed by a thermal head 22. FIG. 2C shows a step of removing the adhesive tape 21. The active material in the region 5 is peeled off together with the adhesive tape 21, and the uncoated portion 3 b is formed in the region 5.

【0024】このように、間欠的に活物質を塗工して形
成された未塗工部3aと、それに対応する領域5とを加
熱・加圧し、粘着テープによって活物質を剥離すれば、
従来のマスキングテープを利用した剥離方法や超音波を
利用した剥離方法に比べて剥離時間を短縮することがで
き、生産性の向上を果たすことができる。
As described above, if the uncoated portion 3a formed by applying the active material intermittently and the region 5 corresponding to the uncoated portion 3a are heated and pressed, and the active material is peeled off with an adhesive tape,
Compared to the conventional peeling method using a masking tape or the peeling method using an ultrasonic wave, the peeling time can be shortened, and the productivity can be improved.

【0025】本発明の電極板は、正極または負極のいず
れにも使用できる。本発明の電極板は渦巻き状に巻いて
使用しても良いし、複数枚を積層して使用しても良い。
本発明の電極板を使用できる密閉型電池としては、リチ
ウムイオン電池、ニッカド電池、ニッケル水素電池等が
挙げられる。
The electrode plate of the present invention can be used for either a positive electrode or a negative electrode. The electrode plate of the present invention may be used by being wound in a spiral shape, or may be used by laminating a plurality of sheets.
Examples of the sealed battery that can use the electrode plate of the present invention include a lithium ion battery, a nickel cadmium battery, and a nickel hydride battery.

【0026】電極板を構成する集電体としては、アルミ
ニウム箔や銅箔などの従来より使用されているものを利
用でき、特に限定されるものではない。活物質は特に限
定されるものではなく、上記の密閉型電池の種類に応じ
て選択すれば良い。
As the current collector constituting the electrode plate, a conventionally used material such as an aluminum foil or a copper foil can be used, and it is not particularly limited. The active material is not particularly limited, and may be selected according to the type of the above sealed battery.

【0027】[0027]

【発明の効果】以上の説明のように本発明の製造方法を
用いれば、従来に比べ生産性を向上させることができ
る。また、製造された電極板は従来の電極板に比べて優
れた品質を有している。
As described above, by using the manufacturing method of the present invention, the productivity can be improved as compared with the conventional method. Further, the manufactured electrode plate has superior quality as compared with the conventional electrode plate.

【図面の簡単な説明】[Brief description of the drawings]

【図1】本発明の密閉型電池の電極板およびその製造方
法の一例を示す図である。
FIG. 1 is a view showing an example of an electrode plate of a sealed battery according to the present invention and a method for producing the same.

【図2】本発明の密閉型電池の電極板の製造方法の他の
例を示す図である。
FIG. 2 is a view showing another example of a method for manufacturing an electrode plate of a sealed battery according to the present invention.

【図3】従来の密閉型電池の電極板の製造方法の一例を
示す図である。
FIG. 3 is a view showing an example of a conventional method for manufacturing an electrode plate of a sealed battery.

【図4】図3に示す製造方法における間欠塗工法を示す
図である。
FIG. 4 is a diagram showing an intermittent coating method in the manufacturing method shown in FIG.

【図5】従来の密閉型電池の電極板の製造方法の他の例
を示す図である。
FIG. 5 is a view illustrating another example of a method for manufacturing an electrode plate of a conventional sealed battery.

【符号の説明】[Explanation of symbols]

1 集電体 1a 集電体の一方の面 1b 集電体の他方の面 2a、2b 塗工部 3a、3b 未塗工部 4 活物質 5 領域 DESCRIPTION OF SYMBOLS 1 Current collector 1a One surface of current collector 1b The other surface of current collector 2a, 2b Coated part 3a, 3b Uncoated part 4 Active material 5 Area

Claims (6)

【特許請求の範囲】[Claims] 【請求項1】 密閉型電池の電極板の製造方法であっ
て、 集電体の一方の面に、間欠的に活物質を塗工して、活
物質が塗工された塗工部と活物質が塗工されていない未
塗工部とを形成する工程と、 集電体の他方の面の全面に活物質を塗工する工程と、 集電体の他方の面における前記未塗工部に対応する領
域の活物質を剥離して、集電体の他方の面に、活物質が
塗工された塗工部と活物質が塗工されていない未塗工部
とを形成する工程とを少なくとも有することを特徴とす
る密閉型電池の電極板の製造方法。
1. A method for manufacturing an electrode plate of a sealed battery, comprising: intermittently applying an active material to one surface of a current collector; A step of forming an uncoated portion on which the substance is not applied; a step of applying an active material to the entire surface of the other surface of the current collector; and the uncoated portion on the other surface of the current collector. Exfoliating the active material in the region corresponding to the step of forming a coated portion coated with the active material and an uncoated portion not coated with the active material on the other surface of the current collector; A method for producing an electrode plate for a sealed battery, comprising at least:
【請求項2】 上記の工程において、一方の面の未塗
工部に対応する他方の面の領域を少なくとも覆うように
粘着テープを貼付し、一方の面の未塗工部と前記領域と
を加熱および/または加圧し、前記粘着テープを除去し
て活物質を剥離する請求項1記載の密閉型電池の電極板
の製造方法。
2. In the above step, an adhesive tape is applied so as to cover at least a region on the other surface corresponding to the uncoated portion on one surface, and the uncoated portion on one surface and the region are adhered to each other. The method for manufacturing an electrode plate for a sealed battery according to claim 1, wherein the adhesive material is removed by heating and / or pressing to remove the active material.
【請求項3】 上記の工程と上記の工程とが終了し
た後、集電体の一方の面に形成された塗工部と、他方の
面の全面に塗工された活物質とを圧延する工程を有して
いる請求項1記載の密閉型電池の電極板の製造方法。
3. After the above steps and the above steps are completed, the coated part formed on one surface of the current collector and the active material coated on the whole surface of the other surface are rolled. The method for producing an electrode plate for a sealed battery according to claim 1, further comprising a step.
【請求項4】 上記〜の工程において、複数の塗工
部と複数の未塗工部とが交互に連続して形成されてお
り、 上記〜の工程が終了した後、集電体を未塗工部で切
断する工程を有する請求項1記載の密閉型電池の電極板
の製造方法。
4. In the above-mentioned steps, a plurality of coated parts and a plurality of uncoated parts are formed alternately and continuously, and after the above-mentioned steps are completed, the current collector is uncoated. The method for producing an electrode plate for a sealed battery according to claim 1, further comprising a step of cutting at an engineered portion.
【請求項5】 上記間欠的に活物質を塗工して形成され
た未塗工部に、密閉型電池の端子と接続するための電極
タブを溶接して取り付ける工程を有している請求項1記
載の密閉型電池の電極板の製造方法。
5. A step of welding an electrode tab for connecting to a terminal of a sealed battery to an uncoated portion formed by intermittently applying an active material. 2. The method for producing an electrode plate for a sealed battery according to claim 1.
【請求項6】 上記請求項1〜5のいずれかに記載の製
造方法によって製造されたことを特徴とする密閉型電池
の電極板。
6. An electrode plate for a sealed battery, which is manufactured by the manufacturing method according to claim 1.
JP10162486A 1998-06-10 1998-06-10 Sealed battery electrode plate and its manufacture Pending JPH11354110A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10162486A JPH11354110A (en) 1998-06-10 1998-06-10 Sealed battery electrode plate and its manufacture

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10162486A JPH11354110A (en) 1998-06-10 1998-06-10 Sealed battery electrode plate and its manufacture

Publications (1)

Publication Number Publication Date
JPH11354110A true JPH11354110A (en) 1999-12-24

Family

ID=15755538

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10162486A Pending JPH11354110A (en) 1998-06-10 1998-06-10 Sealed battery electrode plate and its manufacture

Country Status (1)

Country Link
JP (1) JPH11354110A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585846B1 (en) 2000-11-22 2003-07-01 3M Innovative Properties Company Rotary converting apparatus and method for laminated products and packaging
US6830846B2 (en) 2001-11-29 2004-12-14 3M Innovative Properties Company Discontinuous cathode sheet halfcell web
US7767348B2 (en) 2005-08-25 2010-08-03 Panasonic Corporation Non-aqueous electrolyte secondary battery and battery pack using the same
JP2010238680A (en) * 2009-03-13 2010-10-21 Jm Energy Corp Electrode for electric storage device, method of manufacturing the same, and lithium ion capacitor
JP2014203567A (en) * 2013-04-02 2014-10-27 トヨタ自動車株式会社 Method of recovering positive electrode active material particle
KR20160081369A (en) * 2014-12-31 2016-07-08 현대자동차주식회사 Method for preparing bi-polar all solid battery
JP2019046765A (en) * 2017-09-07 2019-03-22 三洋化成工業株式会社 Method and device for manufacturing electrode for lithium ion battery

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6585846B1 (en) 2000-11-22 2003-07-01 3M Innovative Properties Company Rotary converting apparatus and method for laminated products and packaging
US6830846B2 (en) 2001-11-29 2004-12-14 3M Innovative Properties Company Discontinuous cathode sheet halfcell web
US7767348B2 (en) 2005-08-25 2010-08-03 Panasonic Corporation Non-aqueous electrolyte secondary battery and battery pack using the same
JP2010238680A (en) * 2009-03-13 2010-10-21 Jm Energy Corp Electrode for electric storage device, method of manufacturing the same, and lithium ion capacitor
JP2014203567A (en) * 2013-04-02 2014-10-27 トヨタ自動車株式会社 Method of recovering positive electrode active material particle
KR20160081369A (en) * 2014-12-31 2016-07-08 현대자동차주식회사 Method for preparing bi-polar all solid battery
JP2019046765A (en) * 2017-09-07 2019-03-22 三洋化成工業株式会社 Method and device for manufacturing electrode for lithium ion battery

Similar Documents

Publication Publication Date Title
JP3681928B2 (en) Method for joining battery electrode bodies
EP3800718A1 (en) Secondary battery, device, and manufacturing method for secondary battery
JP4402134B2 (en) Multilayer secondary battery and manufacturing method thereof
JP2004071301A (en) Manufacturing method of case for storage element
WO2013031889A1 (en) Method for manufacturing cell electrode
CN107671414A (en) Lithium ion cell polar ear ultrasonic welding method and tab welding guard method
JPH10214616A (en) Manufacture of stacked battery electrode
JP2016181345A (en) Method for manufacturing secondary battery
JP2003297430A (en) Method of manufacturing secondary battery and device for manufacturing secondary battery electrode
JP4797219B2 (en) Battery lead wire connection device
JP2005190787A (en) Electrode plate for nonaqueous electrolyte secondary battery and its manufacturing method
JPH11354110A (en) Sealed battery electrode plate and its manufacture
JP2005183181A (en) Electrode plate for nonaqueous electrolyte secondary battery and manufacturing method of the same
US20230330885A1 (en) Electrode Assembly Manufacturing Apparatus Including Ultrasonic Cutter and Method Using the Same
JP2003123830A (en) Flat cell and its manufacturing method
JP2001357840A (en) Working method and working device of electrode sheet for battery
JP5550091B2 (en) Method for producing electrode for nonaqueous electrolyte secondary battery and nonaqueous electrolyte secondary battery using the same
JP2020102320A (en) Manufacturing method of secondary battery
JP3528855B2 (en) Negative electrode current collector and method of manufacturing the same
JPH09330706A (en) Manufacture of battery pole plate and battery
JP7205723B2 (en) Ultrasonic bonding method
JP2019135699A (en) Manufacturing method for battery
JPH11265707A (en) Electrode for battery and manufacture of electrode
JP4118359B2 (en) Battery electrode and manufacturing method thereof
JP3277946B2 (en) Current collector with metallic lithium and method for producing the same

Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term