JPS5942768A - Manufacture of sealed battery - Google Patents
Manufacture of sealed batteryInfo
- Publication number
- JPS5942768A JPS5942768A JP57151761A JP15176182A JPS5942768A JP S5942768 A JPS5942768 A JP S5942768A JP 57151761 A JP57151761 A JP 57151761A JP 15176182 A JP15176182 A JP 15176182A JP S5942768 A JPS5942768 A JP S5942768A
- Authority
- JP
- Japan
- Prior art keywords
- laser beam
- battery
- sealed
- battery container
- container
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000002093 peripheral effect Effects 0.000 claims abstract description 25
- 238000000034 method Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000010248 power generation Methods 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims 2
- 239000003792 electrolyte Substances 0.000 abstract description 6
- 239000000203 mixture Substances 0.000 abstract description 5
- 238000003466 welding Methods 0.000 abstract description 5
- 239000011521 glass Substances 0.000 abstract description 3
- 239000007788 liquid Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- RRMGGYGDQCMPKP-UHFFFAOYSA-N gold lithium Chemical compound [Li].[Au] RRMGGYGDQCMPKP-UHFFFAOYSA-N 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 210000001747 pupil Anatomy 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1687—Laser beams making use of light guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1635—Laser beams characterised by the way of heating the interface at least passing through one of the parts to be joined, i.e. laser transmission welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
- B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
- B29C65/14—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure using wave energy, i.e. electromagnetic radiation, or particle radiation
- B29C65/16—Laser beams
- B29C65/1629—Laser beams characterised by the way of heating the interface
- B29C65/1664—Laser beams characterised by the way of heating the interface making use of several radiators
- B29C65/1667—Laser beams characterised by the way of heating the interface making use of several radiators at the same time, i.e. simultaneous laser welding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
- B29C66/112—Single lapped joints
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
- B29C66/13—Single flanged joints; Fin-type joints; Single hem joints; Edge joints; Interpenetrating fingered joints; Other specific particular designs of joint cross-sections not provided for in groups B29C66/11 - B29C66/12
- B29C66/131—Single flanged joints, i.e. one of the parts to be joined being rigid and flanged in the joint area
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2422—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical
- B29C66/24221—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being circular, oval or elliptical being circular
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/01—General aspects dealing with the joint area or with the area to be joined
- B29C66/05—Particular design of joint configurations
- B29C66/20—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines
- B29C66/24—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight
- B29C66/242—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours
- B29C66/2424—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain
- B29C66/24243—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral
- B29C66/24244—Particular design of joint configurations particular design of the joint lines, e.g. of the weld lines said joint lines being closed or non-straight said joint lines being closed, i.e. forming closed contours being a closed polygonal chain forming a quadrilateral forming a rectangle
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C66/00—General aspects of processes or apparatus for joining preformed parts
- B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
- B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
- B29C66/53—Joining single elements to tubular articles, hollow articles or bars
- B29C66/534—Joining single elements to open ends of tubular or hollow articles or to the ends of bars
- B29C66/5346—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat
- B29C66/53461—Joining single elements to open ends of tubular or hollow articles or to the ends of bars said single elements being substantially flat joining substantially flat covers and/or substantially flat bottoms to open ends of container bodies
-
- 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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/147—Lids or covers
- H01M50/166—Lids or covers characterised by the methods of assembling casings with lids
- H01M50/169—Lids or covers characterised by the methods of assembling casings with lids by welding, brazing or soldering
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7146—Battery-cases
-
- 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
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Health & Medical Sciences (AREA)
- Electromagnetism (AREA)
- Toxicology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、例えばリチウム電池などの密閉形電池に係り
、特に′電池容器と’ｊｌｉ’、池薔の周辺接合部にレ
ーザビームを照射して牌接する密閉形′ｒに池の製法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sealed type battery such as a lithium battery, and particularly to a sealed type battery in which a battery container, a 'jli', and a peripheral joint part of a pond are connected by irradiating a laser beam with a battery. It concerns the method of making ponds.
第１図は、従来の密閉形１１ｆｆ、池の１Ｕ４１法を説
明するための図である。FIG. 1 is a diagram for explaining the conventional closed type 11FF and Ike's 1U41 method.
ステンレス製の電池容器１内には、二酸化マンガンを主
成分とする陽極合剤２．セパレータ３゜金（弓リチウム
からなる陰極４ならびに有機液体からなる電解液などの
発電要素が装填されている。Inside the stainless steel battery container 1 is an anode mixture 2 containing manganese dioxide as its main component. The separator 3 is loaded with power generation elements such as a cathode 4 made of gold (lithium) and an electrolyte made of an organic liquid.
電池容器１の開口部はステンレス製の電池蓋５で封口さ
れるが、この電池蓋５の中央部にはガラス層６を介して
集電体７が取付けられている。The opening of the battery container 1 is sealed with a battery lid 5 made of stainless steel, and a current collector 7 is attached to the center of the battery lid 5 with a glass layer 6 interposed therebetween.
′電池蓋５を電１池容器１の開口端にφｙセたのち、そ
れらの周辺層合部８の一点にレーザビーム９を集光し、
レーザビーム９側を周辺接合部８の形状に沿って移動さ
せるか、あるいは重油の力を回転して、同辺接合部８を
順次溶接することにより全周を耐重していた。'After placing the battery lid 5 φy on the open end of the battery container 1, a laser beam 9 is focused on a point in the peripheral layer joint 8,
By moving the laser beam 9 side along the shape of the peripheral joint 8 or by rotating the force of heavy oil, welding the joints 8 on the same side one after another made the entire periphery bearable.
ところがこの従来の対重方法では周辺接合部８を順次溶
接するから、先に溶けて電池容器１と電池蓋５が一体に
なった部分が冷支ると収縮するために歪が生じ、はなは
だしいときには今から１６接しようとする接合部８が互
に離れて溶→ザできない部分が生じて、密閉封口がなさ
れなくなる。このようなことが起こｈ ｔｉいようにす
るためには、外力により電池蓋５を電池容器ｌ１１１１
１に押し付けておくか、あるいは′ｌｆＣ池容器１と′
ｊ’、Ｔ、 ｆ（ＩＩτ）：１５の周辺接合部８を数個
所にわたって予めスポット溶済などで仮止めしておく必
要があり、そのために作業が煩雑になる。However, in this conventional double-loading method, the peripheral joints 8 are sequentially welded, so the part where the battery container 1 and the battery cover 5 are melted first shrinks when exposed to cold, causing distortion, and in extreme cases, The joint parts 8 that are about to come into contact with each other become separated from each other, and there are parts that cannot be melted and the seal cannot be sealed. In order to prevent this from happening, it is necessary to use external force to close the battery cover 5 to the battery container l1111.
1 or 'lfC pond container 1 and'
j', T, f(IIτ): It is necessary to temporarily fix the peripheral joints 8 of 15 at several locations by spot melting or the like, which makes the work complicated.
また、周辺接合部８を順次癖接する５ちに溶接エネルギ
ーにより電池容器１の内ｆ￥１翫が加熱され、特に有機
液体からなる揮発性の？ｌｆ、 ｌ昨液の場合に（・１
その一部が容易に蒸気となって１ｉｊｉ散し、電解液の
不足に基因する放′亀性能のイ１（下をきたす。さらに
、周辺ヂ合部８の溶接が進むにつれて電解液の蒸発景が
多（ｊｃり電池内圧が上昇する訳であるが、周辺接合部
８の最後の溶暗部分では桟気が逃げ場を失い、まだ高温
状態にあって固まっていない接合部８から前記蒸気が外
部へ噴出する。そのために接合部８に隙間が形成され、
気液密性が得られなくなり、放電性能の低下をきたすこ
とにｌ：ｃる。Further, when the peripheral joints 8 are sequentially brought into contact with each other, the welding energy heats the inside of the battery container 1, and in particular, the volatile liquid made of organic liquid is heated by the welding energy. In the case of lf, l liquid (・1
A part of it easily turns into vapor and dissipates, causing a drop in the electrolyte performance due to lack of electrolyte.Furthermore, as the welding of the peripheral joint 8 progresses, the evaporation rate of the electrolyte increases. This causes the internal pressure of the battery to rise, but in the last molten dark part of the peripheral joint 8, the crosspiece has no place to escape, and the steam escapes from the joint 8, which is still in a high temperature state and has not solidified. For this reason, a gap is formed in the joint 8,
It becomes impossible to obtain air-liquid tightness, resulting in a decrease in discharge performance.
本発明の目的はこのような従来技術の欠点を解消し、作
業性が曵く、気液密性の高い密閉形′ル池の製法を提供
するにある。The object of the present invention is to eliminate the drawbacks of the prior art and to provide a method for manufacturing a closed-type pond with high workability and high air-liquid tightness.
この目的を達成するため、本発明は、電池容器と電池蓋
の周辺接合部全体に同時にレーザビームが照射されるよ
うに前記周辺接合部の形状に相応してレーザビームを環
状に集光し、その集光レーザビームにより前記周辺接合
部全体を同時（で溶接したことを特徴とするものである
。To achieve this objective, the present invention focuses a laser beam into an annular shape according to the shape of the peripheral joint so that the entire peripheral joint of the battery container and the battery lid is irradiated with the laser beam at the same time, The method is characterized in that the entire peripheral joint is simultaneously welded by the focused laser beam.
次に本発明の実施０］を第２図ないし第４図とともに説
明する。２ｇ２図および第３図は、第１実施例を説明す
るための図である。Next, embodiment 0 of the present invention] will be explained with reference to FIGS. 2 to 4. 2g2 and 3 are diagrams for explaining the first embodiment.
従来と同様に、電池容器１には陽極合剤２．セパレータ
３ 、 ｌｉ：９１試４ならびに電１弄液などの発電要
素が内項されており、電池容器１の開口部はガラス層６
を介して鳴電体７を数句けた′眠雁益５で封口されてい
る、。As in the past, the battery container 1 contains an anode mixture 2. Power generation elements such as separator 3, Li:91 sample 4 and electrolyte solution are included, and the opening of battery container 1 is covered with glass layer 6.
It is sealed with ``Nemekari 5'' which is a few words of Meiden body 7 through .
電池容器１と電池棒５の周辺接合部８には、それの形状
（本実施例では円形）に相応してレーザビーム９を環状
（本実施例では円環状）に集光し、その集合したレーザ
ビーム９により前記周辺接合部８を同時に溶かして融着
するものである。なお、電池およびレーザビームは回転
する必要はない。A laser beam 9 is focused in a ring shape (an annular shape in this embodiment) on the peripheral joint 8 of the battery container 1 and the battery rod 5 according to its shape (circular in this embodiment), and the collected laser beam 9 is The peripheral joint portion 8 is simultaneously melted and fused by the laser beam 9. Note that the battery and laser beam do not need to rotate.
前述のようにレーザビーム９を円環状に集光するために
、第３図に示すようにレーザビーム９の光路中に中央部
が互に連結された円環状の凸レンズ１０が配置され、そ
のレンズ１（）姉よりレーザビーム９は周辺接合部８の
ところで丁度円環状に集光される。In order to condense the laser beam 9 into an annular shape as described above, an annular convex lens 10 whose central portions are connected to each other is arranged in the optical path of the laser beam 9 as shown in FIG. 1(), the laser beam 9 is focused exactly in an annular shape at the peripheral junction 8.
第４図は、本発明の第２実ＩＩｆｌｉ ・例を説１明す
るための図である。この実施例の場合、レーザビーム９
の光路中に円錐状の反射４ｉｉ’ｆｔ、 １１と、１」
Ｈ〜゛を状の凹面集光境１２とがそれぞれ所定の位置関
係をもって配置されている。平行に入射されたレーザビ
ーム９が反射鏡１１ならびに集光で瞳１２で反射される
ことにより円環状に集光され、′電池容器１と電池ｉｓ
、 ５０周辺接合部８に照射されて接合部８全木を同時
に溶接する。FIG. 4 is a diagram for explaining a second practical example of the present invention. In this example, the laser beam 9
Conical reflections in the optical path of 4ii'ft, 11 and 1''
The concave light condensing boundaries 12 in the shape of H~ are arranged with a predetermined positional relationship, respectively. The parallel incident laser beam 9 is reflected by the reflecting mirror 11 and the condensing pupil 12 to be condensed into an annular shape.
, 50 peripheral joints 8 are irradiated to weld the entire joint 8 simultaneously.
本発明で用いられるレーザ装置としては、ＹＡＧレーザ
などの固体レーザ、あるいは炭酸ガスレーザなどの気体
レーザが好嫡である。The laser device used in the present invention is preferably a solid laser such as a YAG laser or a gas laser such as a carbon dioxide laser.
なお、第３図および第４図では、電池容器１に内装され
ている陽極合剤２．セパレータ３ならびに陰極４などは
省略しであるう
前記実施例ではレーザビームを円環状に集光した例を示
したが、電池容器と電池蓋の周辺接合部の形状が四角形
の場合にはそれに応じた形状にレーザビームを集光する
必要がある。なお実施例では扁平形電池について示した
が、本発明は筒形電池など他の形状の電池にも適用可能
である。Note that in FIGS. 3 and 4, the anode mixture 2. The separator 3, cathode 4, etc. are omitted. In the above embodiment, the laser beam was focused in an annular shape, but if the shape of the peripheral joint between the battery container and the battery lid is square, it may be necessary to It is necessary to focus the laser beam into a certain shape. Although the embodiments have been described with respect to flat batteries, the present invention is also applicable to batteries of other shapes such as cylindrical batteries.
本発明はｍ５述のような構成になっており、電池容器と
電池蓋の周辺接合部をレーザビームで同時に溶接してし
まうから、従来のように歪発生によるトラブルならびに
電解液の揮散によるトラブルが解消され、電池容器と電
池蓋を予め仮止めしておくような必要もなく、また電池
あるいはレーザビームを回動する必要もない。従って作
柴性が良く、しかも気液密性の高い密閉形電池を製造す
ることができる。The present invention has the configuration as described in m5, and since the peripheral joints of the battery container and the battery lid are simultaneously welded with a laser beam, there are no problems caused by distortion or volatilization of the electrolyte as in the past. There is no need to temporarily fasten the battery container and the battery lid in advance, and there is no need to rotate the battery or the laser beam. Therefore, it is possible to manufacture a sealed battery that is easy to make and has high air-liquid tightness.
第１図は従来の密閉形電池の栗法を説明するための断面
図、第２図は本発明の実施例に係る密閉形電池の製法を
説明するための断ｍｉ図、第３図忘よび第４図は本発明
に係るレーザビームの集光手段を示す説明図である。
１・・・・・・電池容器、２・・・・・・陽極合剤、３
・・・・・・セパレータ、４・・・・・・陰極、５・・
・・・パ電池蓋、８・・・・・・周辺接合部、９・・・
・・・レーザビーム、ＩＯ・・・・・・レンズ、１１・
・・・・・反射鏡、１２・・・・・・集光鏡。FIG. 1 is a sectional view for explaining the conventional method for producing a sealed battery, FIG. 2 is a cutaway diagram for explaining the method for manufacturing a sealed battery according to an embodiment of the present invention, and FIG. FIG. 4 is an explanatory diagram showing a laser beam focusing means according to the present invention. 1...Battery container, 2...Anode mixture, 3
... Separator, 4 ... Cathode, 5 ...
... Battery cover, 8... Peripheral joint, 9...
... Laser beam, IO... Lens, 11.
...Reflecting mirror, 12... Concentrating mirror.
Claims (1)
池容器の開口↑ｔ１キを金属製電池蓋で封口し、市１池
容器とｉ電池蓋の周辺接合部にレーザビームを照Ｊ１．
ｉ シて該接合部を溶接する密閉形電池の製法にす・５
いて、Ｍｉｌ記′亀池容器と′電池蓋の周辺接合部全体
に同時にレーザビームが照射されるように前記周辺接合
部の形状にＡ［１応してレーザビームを環状１τ集光し
、その集光レーザビームにより前記周辺接合部全体を同
時に溶接したことを特徴とする密閉形電池の製法。A metal containing a power generation element! ! i:j, 'i, i'ε
The opening ↑t1 of the pond container is sealed with a metal battery cover, and a laser beam is shined on the peripheral joint of the Ichi1 pond container and the i battery cover.
i. A method for manufacturing a sealed battery in which the joints are welded.・5
In order to simultaneously irradiate the entire peripheral joint of the Kameike container and the battery lid with the laser beam, the shape of the peripheral joint is adjusted to A [1]. A method for manufacturing a sealed battery, characterized in that the entire peripheral joint portion is simultaneously welded by an optical laser beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57151761A JPS5942768A (en) | 1982-09-02 | 1982-09-02 | Manufacture of sealed battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57151761A JPS5942768A (en) | 1982-09-02 | 1982-09-02 | Manufacture of sealed battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5942768A true JPS5942768A (en) | 1984-03-09 |
Family
ID=15525714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57151761A Pending JPS5942768A (en) | 1982-09-02 | 1982-09-02 | Manufacture of sealed battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5942768A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04326783A (en) * | 1991-04-26 | 1992-11-16 | Rohm Co Ltd | Manufacture of stem for semiconductor laser device |
-
1982
- 1982-09-02 JP JP57151761A patent/JPS5942768A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04326783A (en) * | 1991-04-26 | 1992-11-16 | Rohm Co Ltd | Manufacture of stem for semiconductor laser device |
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