JPH0449743B2 - - Google Patents
Info
- Publication number
- JPH0449743B2 JPH0449743B2 JP58108590A JP10859083A JPH0449743B2 JP H0449743 B2 JPH0449743 B2 JP H0449743B2 JP 58108590 A JP58108590 A JP 58108590A JP 10859083 A JP10859083 A JP 10859083A JP H0449743 B2 JPH0449743 B2 JP H0449743B2
- Authority
- JP
- Japan
- Prior art keywords
- separator
- electrode
- multilayer separator
- multilayer
- separators
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/40—Separators; Membranes; Diaphragms; Spacing elements inside cells
- H01M50/463—Separators, membranes or diaphragms characterised by their shape
- H01M50/469—Separators, membranes or diaphragms characterised by their shape tubular or cylindrical
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Cell Separators (AREA)
Description
【発明の詳細な説明】
(イ) 産業状の利用分野
本発明は、正、負極をセパレータを介して同心
円状に配置した構造を有する電池の構成方法に係
り、特に棒状電極へのセパレータの取付方法に関
するものである。[Detailed description of the invention] (a) Industrial field of application The present invention relates to a method for configuring a battery having a structure in which positive and negative electrodes are arranged concentrically with a separator interposed therebetween, and in particular, the method for installing a separator to a rod-shaped electrode. It is about the method.
(ロ) 従来の技術
円心円状の電極体を備えた電池構造において、
電池内の中心部に位置する棒状電極とセパレータ
との密着性及び作業性の観点から特公昭54−
41690号公報に見られるように電池内の中心部に
位置する電極の周囲にセパレータを数重に巻付
け、そしてセパレータの下端余剰部を捻るか或る
いは捻つた後溶着して封縅する方法が提案されて
いる。この方法における一つの問題点は、一枚の
セパレータを電極の周囲に数重に巻付けるためセ
パレータの巻ズレが生じやすいことである。(b) Prior art In a battery structure equipped with a circular electrode body,
From the viewpoint of adhesion between the rod-shaped electrode located at the center of the battery and the separator and workability,
As seen in Publication No. 41690, a separator is wrapped several times around an electrode located at the center of the battery, and the excess portion at the lower end of the separator is twisted or twisted and then welded and sealed. is proposed. One problem with this method is that a single sheet of separator is wound around the electrode several times, which tends to cause winding misalignment of the separator.
そこで少なくとも２枚のセパレータを積層した
多重層セパレータの使用が考えられる。多重層セ
パレータの使用は一枚使いのセパレータに比して
電極周囲への巻回数が半減するためセパレータの
巻ズレが抑制される利点があるものの、多重層セ
パレータを用いる場合は別途新たな問題がある。 Therefore, it is conceivable to use a multilayer separator in which at least two separators are laminated. Using a multilayer separator has the advantage of suppressing the winding misalignment of the separator because the number of windings around the electrode is halved compared to a single separator. However, when using a multilayer separator, a new problem arises. be.
即ち、個々のセパレータを単に積層して多重層
セパレータを構成した場合、組立作業時に個々の
セパレータが位置ズレし作業が煩雑になることで
ある。一方個々のセパレータを積層し、その積層
部の端部を溶着して一体化した場合には位置ズレ
は阻止されるものの、電極の周囲に巻付けると内
側セパレータと外側セパレータとの径が異なるた
め内側セパレータに皺が生じ、少なくとも２枚の
セパレータ間に空〓が生成されて正負極間距離が
増大し、電池性能の低下を来たすという問題があ
る。 That is, if a multilayer separator is constructed by simply laminating individual separators, the individual separators will be misaligned during assembly, making the assembly process complicated. On the other hand, if individual separators are laminated and the ends of the laminated parts are welded together, the positional shift is prevented, but when wrapped around the electrode, the diameters of the inner separator and outer separator are different. There is a problem in that wrinkles occur in the inner separator, creating a void between at least two separators, increasing the distance between the positive and negative electrodes, and causing a decrease in battery performance.
(ハ) 発明が解決しようとする課題
本発明は、特に多重層セパレータを棒状電極に
取付ける際の問題点を改善しようとするものであ
る。(c) Problems to be Solved by the Invention The present invention is particularly intended to improve the problems encountered when attaching a multilayer separator to a rod-shaped electrode.
(ニ) 課題を解決するための手段
本発明の棒状電極へのセパレータの取付方法
は、少なくとも２枚のセパレータを積層してその
積層部分を連続的或るいは不連続的に一列上で溶
着して溶着部を形成し多重層セパレータとする第
１工程と、
該多重層セパレータより小幅の棒状電極の周囲
を、前記電極の長手方向の中心軸に対して前記溶
着部が平行位置になるように、前記電極長手方向
に対して垂直方向に前記多重層セパレータで捲回
して、その両端の突き合わせ部を重ね合わせ、前
記電極を前記多重層セパレータで包囲する第２工
程と、
前記電極の外周面において、前記電極の長手方
向に前記多重層セパレータの前記重ね合わせ部を
溶着固定する第３工程と、
前記多重層セパレータの下端余剰部を封縅する
第４工程とからなることを特徴とするものであ
る。(d) Means for Solving the Problems The method of attaching a separator to a rod-shaped electrode of the present invention involves laminating at least two separators and welding the laminated portions in a continuous or discontinuous manner in a line. a first step of forming a welded part to form a multilayer separator; and a first step of forming a welded part to form a multilayer separator; a second step of wrapping the multilayer separator in a direction perpendicular to the longitudinal direction of the electrode, overlapping the abutting portions of both ends thereof, and surrounding the electrode with the multilayer separator; , a third step of welding and fixing the overlapping portions of the multilayer separator in the longitudinal direction of the electrodes, and a fourth step of sealing the lower end surplus portion of the multilayer separator. be.
(ホ) 作 用
複数枚のセパレータを積層し、その積層部分を
連続的或るいは不連続的に一列上で溶着すると、
多重層セパレータの巻回方向において両端部に位
置するセパレータは夫々隔離される。このため、
該多重層セパレータを電極の周囲に巻付ける際
に、内側のセパレータの径が外側のセパレータの
径より小さくなつても、内側のセパレータに皺が
生じることがない。そして、これによつて、多重
層セパレータを構成する複数のセパレータ間に空
〓が生成されることがなくなり、電池性能の低下
を防止できる。(E) Effect When multiple separators are laminated and the laminated parts are welded continuously or discontinuously in a row,
Separators located at both ends of the multilayer separator in the winding direction are separated from each other. For this reason,
When the multilayer separator is wound around the electrode, even if the diameter of the inner separator becomes smaller than the diameter of the outer separator, wrinkles do not occur in the inner separator. This eliminates the generation of spaces between the plurality of separators constituting the multilayer separator, thereby preventing deterioration in battery performance.
(ヘ) 実施例
以下に、本発明の一実施例を図面に基づき説明
する。(f) Example An example of the present invention will be described below based on the drawings.
先ず、第１図に示す如く所定寸法に裁断したポ
リプロピレン不織布よりなる一対のセパレータ
１，１を積層し、その積層部の中心線上を不連続
的（本発明では上下端略中央部のみ）に超音波溶
着或るいは熱溶着により溶着固定２して多重層セ
パレータ１０を形成する。尚、本実施例では一対
のセパレータ１，１として同一部材を用いたが、
一方のセパレータとしてポリプロピレン製の微孔
性フイルムを用いても良い。又、溶着部は積層部
の中心線上を連続的に形成してもよい。 First, as shown in FIG. 1, a pair of separators 1, 1 made of polypropylene nonwoven fabric cut to a predetermined size are laminated, and the center line of the laminated portion is discontinuously (in the present invention, only the upper and lower ends approximately in the center) superimposed. The multilayer separator 10 is formed by welding and fixing 2 by sonic welding or thermal welding. Note that in this example, the same member was used as the pair of separators 1, 1, but
A microporous polypropylene film may be used as one of the separators. Further, the welded portion may be formed continuously on the center line of the laminated portion.
次いで、第２図に示す如く半円形溝３を有した
巻付台４の上面に多重層セパレータ１０を載置
し、且該セパレータ１０の上方より棒状のリチウ
ム電極１１を押圧する。この時、多重層セパレー
タ１０の一対の溶着部２，２を結ぶ中心線が電極
１１に対して平行位置となるように、前記電極１
１を巻付台４の上面に載置する。 Next, as shown in FIG. 2, a multilayer separator 10 is placed on the upper surface of a winding table 4 having a semicircular groove 3, and a rod-shaped lithium electrode 11 is pressed from above the separator 10. At this time, the electrode 1 is placed so that the center line connecting the pair of welded parts 2, 2 of the multilayer separator 10 is parallel to the electrode 11.
1 is placed on the upper surface of the winding table 4.
その後、第３図に示す如く棒状リチウム電極１
１の周囲を多重層セパレータ１０で包囲し、電極
１１の外周面において多重層セパレータ１０の両
端の突き合わせ部を重ね合わせた後、該重ね合わ
せ部を超音波溶着或るいは熱溶着によつて溶着固
定５し、第４図に示す如くリチウム負極１１の周
囲に多重層セパレータ１０を一体的に取付ける。 After that, as shown in FIG. 3, the rod-shaped lithium electrode 1
1 is surrounded by a multilayer separator 10, and after overlapping the abutting portions of both ends of the multilayer separator 10 on the outer peripheral surface of the electrode 11, the overlapping portions are welded by ultrasonic welding or thermal welding. 5, and a multilayer separator 10 is integrally attached around the lithium negative electrode 11 as shown in FIG.
その後、多重層セパレータ１０の下端余剰部１
０′を周知の方法、例えば捻るか或るいは集束し
たのち溶着するなどして封縅する。 After that, the lower end surplus portion 1 of the multilayer separator 10
0' is sealed by a known method, such as by twisting or converging and then welding.
第５図、本発明法によつて成形されたセパレー
タ１０を組込んだ筒型の有機電解質電池の縦断面
図であり、第５図において１２は正極端子兼用の
電池容器であつて、その内側面には筒状の二酸化
マンガン正極１３が配置されている。１４は前記
電池容器１２の開口部を閉塞する金属蓋であつ
て、その中心透孔には絶縁材１５を介して負極端
子ピン１６が固定されており、且負極端子ピン１
６の下面にリチウム負極１１より導出した器リー
ド板１１′の一端が固定されている。 FIG. 5 is a longitudinal cross-sectional view of a cylindrical organic electrolyte battery incorporating a separator 10 molded by the method of the present invention. In FIG. 5, 12 is a battery container which also serves as a positive terminal; A cylindrical manganese dioxide positive electrode 13 is arranged on the side surface. Reference numeral 14 denotes a metal lid that closes the opening of the battery container 12, and a negative electrode terminal pin 16 is fixed to its central through hole via an insulating material 15.
One end of a lead plate 11' led out from the lithium negative electrode 11 is fixed to the lower surface of the lithium negative electrode 6.
(ト) 発明の効果
本発明法によれば、少なくとも２枚のセパレー
タを積層してその積層部分を連続的或るいは不連
続的に一列上で溶着して溶着部を形成し多重層セ
パレータとする第１工程と、該多重層セパレータ
より小幅の棒状電極の周囲を、前記電極の長手方
向の中心軸に対して前記溶着部が平行位置になる
ように、前記電極長手方向に対して垂直方向に前
記多重層セパレータで捲回して、その両端の突き
合わせ部を重ね合わせ、前記電極を前記セパレー
タで包囲する第２工程と、前記電極の外周面にお
いて、前記電極の長手方向に前記多重層セパレー
タの前記重ね合わせ部を溶着固定する第３工程
と、前記多重層セパレータの下端余剰部を封縅す
る第４工程とを有するものであるから、多重層セ
パレータを電極の周囲に巻付ける際に、内側のセ
パレータに皺が生じることがなく、多重層セパレ
ータを構成する少なくとも２枚のセパレータ間に
空〓が生成されることが防止できる。(G) Effects of the Invention According to the method of the present invention, at least two separators are laminated and the laminated portions are welded continuously or discontinuously in a line to form a welded part, thereby forming a multilayer separator. a first step in which the circumference of the rod-shaped electrode, which is narrower than the multilayer separator, is perpendicular to the longitudinal direction of the electrode so that the welded part is parallel to the central axis in the longitudinal direction of the electrode; a second step of wrapping the electrode with the multilayer separator, overlapping the abutting portions of both ends thereof, and surrounding the electrode with the separator; Since the method includes a third step of welding and fixing the overlapping portions, and a fourth step of sealing the excess lower end portion of the multilayer separator, when wrapping the multilayer separator around the electrode, the inside This prevents wrinkles from forming on the separators, and prevents the formation of voids between at least two separators constituting the multilayer separator.
又、本実施例のように、多重層セパレータの重
ね合わせ部の上下端略中央部のみを溶着し、この
溶着部が電極と対向しない部分に位置させれば、
この溶着部におけるイオンの透過性の低下が電池
性能に悪影響を及ぼすことがないので有益であ
る。 Furthermore, as in this embodiment, if only the approximately central portions of the upper and lower ends of the overlapping portions of the multilayer separators are welded, and this welded portion is located in a portion that does not face the electrodes,
This reduction in ion permeability in the welded portion is beneficial because it does not adversely affect battery performance.
図面はいずれも本発明に係り、第１図乃至第４
図は本発明法を説明するための図、第５図は本発
明法によつて得たセパレータを組込んだ有機電解
質電池の縦断面図である。
１，１……セパレータ、２……溶着部、１０…
…多重層セパレータ、１０′……余剰部、１１…
…リチウム負極、１２……電池容器、１３……正
極、１４……金属蓋、１５……絶縁材、１６……
負極端子ピン。
All of the drawings relate to the present invention, and include Figures 1 to 4.
The figure is a diagram for explaining the method of the present invention, and FIG. 5 is a longitudinal sectional view of an organic electrolyte battery incorporating a separator obtained by the method of the present invention. 1, 1... separator, 2... welded part, 10...
...Multilayer separator, 10'... Surplus part, 11...
...Lithium negative electrode, 12...Battery container, 13...Positive electrode, 14...Metal lid, 15...Insulating material, 16...
Negative terminal pin.
Claims (1)
積層部分を連続的或るいは不連続的に一列上で溶
着して溶着部を形成し多重層セパレータとする第
１工程と、 該多重層セパレータより小幅の棒状電極の周囲
を、前記電極の長手方向の中心軸に対して前記溶
着部が平行位置になるように、前記電極長手方向
に対して垂直方向に前記多重層セパレータで捲回
して、その両端の突き合わせ部を重ね合わせ、前
記電極を前記多重層セパレータで包囲する第２工
程と、 前記電極の外周面において、前記電極の長手方
向に前記多重層セパレータの前記重ね合わせ部を
溶着固定する第３工程と、 前記多重層セパレータの下端余剰部を封緘する
第４工程とよりなる棒状電極へのセパレータ取付
方法。[Claims] 1. A first step of laminating at least two separators and welding the laminated portions continuously or discontinuously in a line to form a welded part to form a multilayer separator; The multilayer separator is placed around the rod-shaped electrode, which is narrower than the multilayer separator, in a direction perpendicular to the longitudinal direction of the electrode so that the welded part is parallel to the central axis in the longitudinal direction of the electrode. a second step of winding the electrode, overlapping the abutting portions of both ends thereof, and surrounding the electrode with the multilayer separator; A method for attaching a separator to a rod-shaped electrode, comprising: a third step of welding and fixing the multilayer separator; and a fourth step of sealing an excess portion of the lower end of the multilayer separator.
Priority Applications (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58108590A JPS6051A (en) | 1983-06-16 | 1983-06-16 | Formation process for separator |
| US06/588,543 US4565002A (en) | 1983-03-16 | 1984-03-12 | Method of forming a separator for a cylindrical battery |
| CA000449534A CA1224243A (en) | 1983-03-16 | 1984-03-14 | Method of forming a separator for a cylindrical battery |
| DE19843409584 DE3409584A1 (en) | 1983-03-16 | 1984-03-15 | METHOD FOR DESIGNING A CYLINDRICAL BATTERY SEPARATOR |
| CH1308/84A CH663859A5 (en) | 1983-03-16 | 1984-03-15 | METHOD FOR PRODUCING A SEPARATOR OF A CYLINDRICAL BATTERY. |
| GB08406992A GB2139408A (en) | 1983-03-16 | 1984-03-16 | A method of forming a separator for a cylindrical battery |
| FR8404135A FR2542925B1 (en) | 1983-03-16 | 1984-03-16 | METHOD FOR FORMING A SEPARATOR FOR A CYLINDRICAL STACK |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58108590A JPS6051A (en) | 1983-06-16 | 1983-06-16 | Formation process for separator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6051A JPS6051A (en) | 1985-01-05 |
| JPH0449743B2 true JPH0449743B2 (en) | 1992-08-12 |
Family
ID=14488660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58108590A Granted JPS6051A (en) | 1983-03-16 | 1983-06-16 | Formation process for separator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6051A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4841936A (en) * | 1985-06-27 | 1989-06-27 | Toyota Jidosha Kabushiki Kaisha | Fuel injection control device of an internal combustion engine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5441690A (en) * | 1977-09-09 | 1979-04-03 | Toshiba Corp | Elastic surface wave unit |
| JPS5542619U (en) * | 1978-09-13 | 1980-03-19 | ||
| JPS5642958A (en) * | 1979-09-17 | 1981-04-21 | Japan Vilene Co Ltd | Preparation of blind tubular separator for battery |
-
1983
- 1983-06-16 JP JP58108590A patent/JPS6051A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6051A (en) | 1985-01-05 |
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