JPH09265966A - Rectangular battery outer packaging can - Google Patents
Rectangular battery outer packaging canInfo
- Publication number
- JPH09265966A JPH09265966A JP8075967A JP7596796A JPH09265966A JP H09265966 A JPH09265966 A JP H09265966A JP 8075967 A JP8075967 A JP 8075967A JP 7596796 A JP7596796 A JP 7596796A JP H09265966 A JPH09265966 A JP H09265966A
- Authority
- JP
- Japan
- Prior art keywords
- opening end
- corner
- battery
- corners
- thickness
- 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
- 238000004806 packaging method and process Methods 0.000 title abstract 2
- 230000002093 peripheral effect Effects 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000007789 sealing Methods 0.000 abstract description 34
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 description 23
- 239000002184 metal Substances 0.000 description 23
- 238000004804 winding Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000002950 deficient Effects 0.000 description 2
- 239000011255 nonaqueous electrolyte Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910012851 LiCoO 2 Inorganic materials 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000005486 organic electrolyte Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
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
- H01M50/10—Primary casings; Jackets or wrappings
- H01M50/102—Primary casings; Jackets or wrappings characterised by their shape or physical structure
- H01M50/103—Primary casings; Jackets or wrappings characterised by their shape or physical structure prismatic or rectangular
-
- 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
- Sealing Battery Cases Or Jackets (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、底部と略方形筒状
の筒部とから成り、且つ、上記筒部は薄板状の筒本体部
と、この筒本体部より肉厚で上記筒部の四隅に設けられ
る円弧状の隅部とから構成される角形電池用外装缶に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention comprises a bottom portion and a substantially rectangular tubular tubular portion, wherein the tubular portion is a thin plate-shaped tubular main body, and the tubular portion is thicker than the tubular main body portion. The present invention relates to an outer can for a prismatic battery, which is composed of arc-shaped corners provided at four corners.
【０００２】[0002]
【従来の技術】近年、電子機器の小型化に伴って、その
電源として用いられる密閉形電池の小型化が要望される
ようになってきており、この要望を満たすべく、円筒形
やボタン形の密閉形電池に比べてスペース効率に優れる
角形密閉式電池の開発が盛んに行われている。2. Description of the Related Art In recent years, with the miniaturization of electronic equipment, there has been a demand for miniaturization of sealed batteries used as a power supply for the electronic equipment. The development of square sealed batteries that are more space efficient than sealed batteries is being actively pursued.
【０００３】ここで、上記角形密閉式電池は、開口部が
略方形を成す有底筒状の外装缶内に楕円柱状の巻取り電
極体を収納する構成である。そして、このような電池で
は、充放電の繰り返しによって電池内圧が上昇した場合
であっても、巻取り電極体の正極と負極との密着性等の
低下を防止して、電池性能の低下を防止する必要があ
る。Here, the prismatic sealed battery has a structure in which an elliptical columnar winding electrode body is housed in a bottomed cylindrical outer can whose opening is substantially rectangular. In such a battery, even when the internal pressure of the battery rises due to repeated charging / discharging, the adhesion of the positive electrode and the negative electrode of the winding electrode body is prevented from being deteriorated, and the deterioration of the battery performance is prevented. There is a need to.
【０００４】ところが、近年、電池の軽量化の観点よ
り、外装缶にはｓｔｅｅｌに比べ、比重が１／３と軽い
アルミニウム合金が使用されている。しかし、ｓｔｅｅ
ｌに比べアルミニウム合金は、機械的強度が劣り、外装
缶の肉厚を余り薄くすると、外装缶が変形して巻取り電
極体に適度な圧力が加わらず、正極と負極との密着性等
が低下するという課題を有していた。その一方、外装缶
の肉厚を厚くすると、電池の軽量化を図ることができな
い等の課題を有していた。However, in recent years, from the viewpoint of reducing the weight of batteries, aluminum alloys having a specific gravity as light as 1/3 that of steel are used for the outer can. However, seee
Aluminum alloy is inferior in mechanical strength to that of 1, and if the thickness of the outer can is too thin, the outer can is deformed and an appropriate pressure is not applied to the winding electrode body, resulting in poor adhesion between the positive electrode and the negative electrode. It had a problem of decreasing. On the other hand, if the thickness of the outer can is increased, there is a problem that the weight of the battery cannot be reduced.
【０００５】そこで、従来は、図６に示すように、デッ
ドスペースとなっている外装缶１４の隅部１１…の厚み
を薄板状の筒本体部１２…よりも肉厚構造とすることに
よって、軽量化を図りつつ外装缶１４の強度の向上を図
っていた。しかし、上記の構造では、外装缶１４内に巻
取り電極体を収納した後、外装缶１４の開口端部に金属
封口蓋を圧入し嵌合面をレーザ溶接する場合に、外装缶
１４の隅部１１…の厚みと筒本体部１２…との厚みが異
なることにより、肉厚の隅部１１…で、溶着不良による
レーザクラック、ピンホール等が生じるという課題を有
していた。Therefore, conventionally, as shown in FIG. 6, the thickness of the corners 11 of the outer can 14 which is a dead space is made thicker than that of the thin plate-like cylinder body 12 ... The strength of the outer can 14 was improved while reducing the weight. However, in the above structure, when the winding electrode body is housed in the outer can 14, the metal sealing lid is press-fitted into the opening end of the outer can 14 and the fitting surface is laser-welded. There is a problem that laser cracks, pinholes, etc. due to defective welding occur at the thick corners 11 due to the difference between the thickness of the portions 11 ... and the thickness of the cylinder body portion 12.
【０００６】そこで、図７及び図８に示すように、隅部
１１…の開口端部近傍における外面を切除して筒本体部
１２…の厚みと略同等になるようにし、その後嵌合面を
レーザ溶接するような方法が提案されている。尚、図８
における１３は金属封口蓋である。Therefore, as shown in FIGS. 7 and 8, the outer surfaces of the corners 11 ... In the vicinity of the open ends are cut off so as to have a thickness substantially equal to the thickness of the cylinder main body 12 ,. Methods such as laser welding have been proposed. FIG.
13 is a metal sealing lid.
【０００７】[0007]
【発明が解決しようとする課題】上記構造であれば、外
装缶１４の隅部１１…の厚みと筒本体部１２…との厚み
が略同等となるので、溶着不良が発生するのを抑制する
ことができる。しかしながら、上記構造では、隅部１１
…の切除工程が新たに必要となるため、電池の製造コス
トが高くなるという課題を有していた。With the above structure, since the thickness of the corners 11 of the outer can 14 and the thickness of the cylinder body 12 are substantially equal to each other, the occurrence of defective welding is suppressed. be able to. However, in the above structure, the corner 11
Since the excision step of ... Is newly required, there is a problem that the manufacturing cost of the battery increases.
【０００８】加えて、上記の構造では、外装缶１４の開
口部に金属封口蓋１３を挿入する際、図９に示すよう
に、金属封口蓋１３が落ち込んで、レーザ封口の際に封
口不良を生じる虞れがある。したがって、これを抑制す
るには外装缶１４に金属封口蓋１３を圧入するような構
成としなければならないが、これでは、外装缶１４と金
属封口蓋１３とを作製する際、共に高い加工精度が要求
される。加えて、金属封口蓋１３が設計値よりも大きく
なったりすると、外装缶１４に金属封口蓋１３を圧入す
ることができないため、電池作製時の歩留りが低下する
といった課題も有していた。In addition, in the above structure, when the metal sealing lid 13 is inserted into the opening of the outer can 14, the metal sealing lid 13 falls down as shown in FIG. May occur. Therefore, in order to suppress this, it is necessary to press-fit the metal sealing lid 13 into the outer can 14, but with this, when the outer can 14 and the metal sealing lid 13 are manufactured, high processing accuracy is required. Required. In addition, if the metal sealing lid 13 becomes larger than the designed value, the metal sealing lid 13 cannot be press-fitted into the outer can 14, so that there is a problem that the yield at the time of manufacturing the battery decreases.
【０００９】本発明は、上記従来の課題を考慮してなさ
れたものであって、製造コストの高騰や歩留りの低下を
招来することなく、レーザ封口の際に封口不良が発生す
るのを抑制することができる角形電池用外装缶の提供を
目的としている。The present invention has been made in consideration of the above-mentioned conventional problems, and suppresses the occurrence of a sealing failure during laser sealing without causing a rise in manufacturing cost and a decrease in yield. The purpose of the present invention is to provide an outer can for a prismatic battery.
【００１０】[0010]
【課題を解決するための手段】上記目的を達成するため
に、本発明の請求項１記載の発明は、底部と略方形筒状
の筒部とから成り、且つ、上記筒部は薄板状の筒本体部
と、この筒本体部より肉厚で上記筒部の四隅に設けられ
る円弧状の隅部とから構成される角形電池用外装缶おい
て、前記隅部の開口端内周面が切り欠かれて前記隅部の
開口端に段差部が設けられ、この段差部により開口端近
傍における前記筒本体部と前記隅部との厚みが略同一と
なるように構成されていることを特徴とする。In order to achieve the above object, the invention according to claim 1 of the present invention comprises a bottom portion and a tubular portion of a substantially rectangular tubular shape, and the tubular portion has a thin plate shape. In an outer can for a prismatic battery composed of a cylinder main body and arc-shaped corners which are thicker than the cylinder main body and provided at the four corners of the cylinder, the inner peripheral surface of the opening end of the corner is cut. A stepped portion is provided at the opening end of the corner portion so as to be omitted, and the stepped portion is configured so that the thickness of the cylinder main body portion and the corner portion in the vicinity of the opening end are substantially the same. To do.
【００１１】上記の如く隅部の開口端内周面を切り欠い
て隅部の開口端に段差部を設ける構成とすれば、しぼり
成形により角形電池用外装缶を作製する際、ポンチ形状
を変更するだけで、筒本体部と隅部との厚みが略同一と
なるように構成することができる。したがって、角形電
池用外装缶を作製する場合に、切削工程が不要となるの
で加工費用の上昇を招くことなく、レーザ封口の際に封
止不良が発生するのを抑制することができる。If the inner peripheral surface of the opening end of the corner is cut out and the step portion is provided at the opening end of the corner as described above, the punch shape is changed when the outer can for a rectangular battery is manufactured by squeezing. Only by doing so, the thickness of the cylinder main body and the corner can be made substantially the same. Therefore, when manufacturing the outer case for the prismatic battery, the cutting process is not required, so that it is possible to suppress the occurrence of sealing failure during laser sealing without increasing the processing cost.
【００１２】加えて、角形電池用外装缶の開口端部に金
属封口蓋を挿入する場合、金属封口蓋は段差部に支持さ
れるので、金属封口蓋が若干小さくても金属封口蓋が落
ち込むのを防止することができる。したがって、従来に
比べて外装缶と金属封口蓋とに要求される寸法精度が緩
和される。[0012] In addition, when the metal sealing lid is inserted into the opening end of the prismatic battery outer can, the metal sealing lid is supported by the stepped portion, so that the metal sealing lid will fall even if the metal sealing lid is slightly smaller. Can be prevented. Therefore, the dimensional accuracy required for the outer can and the metal lid is relaxed as compared with the conventional case.
【００１３】尚、本発明の角形電池用外装缶は主として
非水系電解液電池に用いられるが、これに限定するもの
ではなく、表面処理等の手段を施せばニッケル−水素蓄
電池等の電池にも用いることができる。The outer can for prismatic batteries of the present invention is mainly used for non-aqueous electrolyte batteries, but the invention is not limited to this and can be applied to batteries such as nickel-hydrogen storage batteries if surface treatment is performed. Can be used.
【００１４】[0014]
【発明の実施の形態】本発明の実施の形態を、図１〜図
４に基づいて、以下に説明する。図１及び図３に示すよ
うに、本発明の角形電池用外装缶１は、底部２とこの底
部２と一体形成された略方形筒状の筒部３とから構成さ
れている。上記筒部３は薄板状の筒本体部３ａ…と、こ
の筒本体部３ａ…より肉厚で上記筒部３の四隅に設けら
れる円弧状の隅部３ｂ…とから成る。この隅部３ｂ…の
開口端内周面は切り欠かれており、これにより、上記隅
部３ｂ…の開口端に段差部４…が形成される。また、隅
部３ｂ…の開口端内周面と外周面とは略同一の曲率とな
るように構成されており、これによって、上記筒本体部
３ａ…の厚みｔ1 と上記隅部３ｂ…の開口端の厚みｔ2
とが略同一となるように構成される。BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to FIGS. As shown in FIG. 1 and FIG. 3, an outer can 1 for prismatic batteries of the present invention comprises a bottom portion 2 and a substantially rectangular tubular portion 3 integrally formed with the bottom portion 2. The tubular portion 3 is composed of a thin plate-shaped tubular main body portion 3a, and arc-shaped corner portions 3b which are thicker than the tubular main body portion 3a and are provided at the four corners of the tubular portion 3. The inner peripheral surface of the opening end of each of the corners 3b ... Is notched, whereby step portions 4 ... Are formed at the opening end of each of the corners 3b. Further, the inner peripheral surface and the outer peripheral surface of the opening end of the corners 3b ... Are configured to have substantially the same curvature, whereby the thickness t 1 of the cylinder main body 3a ... And the corners 3b. Thickness of opening end t 2
And are substantially the same.
【００１５】また、図４に示すように、段差部４…の深
さｔ3 は、角形電池用外装缶１の開口端部に圧入される
金属封口蓋５の厚みｔ4 と略同等となるように形成され
ており、これによって上記金属封口蓋５の圧入時に角形
電池用外装缶１の開口端面６と金属封口蓋５の上面５ａ
とが面一となるような構成である。Further, as shown in FIG. 4, the depth t 3 of the step portions 4 ... Is substantially equal to the thickness t 4 of the metal sealing lid 5 which is press-fitted into the opening end of the prismatic battery outer can 1. Thus, when the metal sealing lid 5 is press-fitted, the opening end face 6 of the prismatic battery outer can 1 and the upper surface 5a of the metal sealing lid 5 are formed.
The configuration is such that and are flush with each other.
【００１６】更に、図２に示すように、隅部３ｂ…の内
周面３ｃは、上記金属封口蓋５の隅部５ａの形状に対応
して円弧状に形成されており、これによって金属封口蓋
５を角形電池用外装缶１に容易に圧入することが可能と
なる。そして、電池作製時には、金属封口蓋５を角形電
池用外装缶１に圧入した状態で、金属封口蓋５の外周面
と、隅部３ｂ…の内周面３ｃを含む角形電池用外装缶１
の内周面とが溶着される。Further, as shown in FIG. 2, the inner peripheral surfaces 3c of the corners 3b ... Are formed in an arc shape corresponding to the shape of the corners 5a of the metal sealing lid 5, whereby the metal sealing is performed. The lid 5 can be easily press-fitted into the outer can 1 for prismatic batteries. At the time of manufacturing the battery, with the metal sealing lid 5 being press-fitted into the prismatic battery outer can 1, the prismatic battery outer can 1 including the outer peripheral surface of the metal sealing lid 5 and the inner peripheral surfaces 3c of the corners 3b.
Is welded to the inner peripheral surface of.
【００１７】加えて、金属封口蓋５は段差部４…に支持
されるので、金属封口蓋５が若干小さい場合であって
も、金属封口蓋５が落ち込むようなことはない。In addition, since the metal sealing lid 5 is supported by the step portions 4, ... Even if the metal sealing lid 5 is slightly small, the metal sealing lid 5 does not fall.
【００１８】ここで、上記構造の角形電池用外装缶１を
しぼり成形により作製する場合には、図５に示すよう
に、ポンチ８の隅部８ａ…（角形電池用外装缶１の隅部
３ｂ…に対応する）の形状を、出っ張り形状とすれば良
い。このように、ポンチ８の形状を若干変更するだけで
良いので、本発明の角形電池用外装缶１を容易に作製す
ることが可能である。Here, when the outer can 1 for prismatic battery having the above-mentioned structure is produced by squeezing, as shown in FIG. 5, the corners 8a of the punch 8 (the corners 3b of the outer can 1 for prismatic battery 1 are formed. (Corresponding to ...) may be a protruding shape. As described above, since the shape of the punch 8 needs to be slightly changed, the outer can 1 for prismatic battery of the present invention can be easily manufactured.
【００１９】[0019]
【実施例】上記本発明の外装缶を用いた電池と、従来の
外装缶（図６に示す外装缶）を用いた電池とを作製した
後、各電池のレーザ封止不良率を調べたので、その結果
を下記表１に示す。尚、電池としては、ＬｉＣｏＯ2 か
ら成る正極と、黒鉛から成る負極と、有機電解液とから
成る非水系電解液二次電池を用いた。またレーザ封止不
良の判別は、電池作製後に顕微鏡で外観を観察し、クラ
ック、ピンホール等が発生しているものを封止不良とし
た。EXAMPLE A battery using the above-described outer can of the present invention and a battery using a conventional outer can (the outer can shown in FIG. 6) were manufactured, and the laser sealing defect rate of each battery was examined. The results are shown in Table 1 below. As the battery, a non-aqueous electrolyte secondary battery including a positive electrode made of LiCoO 2 , a negative electrode made of graphite, and an organic electrolyte was used. In addition, in order to discriminate the laser sealing failure, the appearance was observed with a microscope after the battery was manufactured, and those having cracks, pinholes, etc. were regarded as the sealing failure.
【００２０】[0020]
【表１】 [Table 1]
【００２１】上記表１から明らかなように、本発明の外
装缶を用いた電池は、従来の外装缶を用いた電池に比べ
て、レーザ封止不良率が格段に低減していることが認め
られる。As is apparent from Table 1 above, it is recognized that the battery using the outer can of the present invention has a markedly lower laser sealing defect rate than the battery using the conventional outer can. To be
【００２２】[0022]
【発明の効果】以上説明したように本発明によれば、製
造コストの高騰や歩留りの低下を招来することなく、レ
ーザ封口の際に封止不良が発生するのを抑制することが
できるという優れた効果を奏する。As described above, according to the present invention, it is possible to suppress the occurrence of sealing failure during laser sealing without causing a rise in manufacturing cost and a reduction in yield. Produce the effect.
【図１】本発明の角形電池用外装缶の斜視図である。FIG. 1 is a perspective view of an outer can for a prismatic battery of the present invention.
【図２】図１のＡ−Ａ線矢視部分断面斜視図である。FIG. 2 is a partial cross-sectional perspective view taken along the line AA of FIG.
【図３】本発明の角形電池用外装缶の平面図である。FIG. 3 is a plan view of an outer can for a prismatic battery of the present invention.
【図４】図３のＢ−Ｂ線矢視断面図である。4 is a sectional view taken along the line BB of FIG.
【図５】本発明の角形電池用外装缶を作製するためのポ
ンチの斜視図である。FIG. 5 is a perspective view of a punch for producing the outer can for prismatic batteries of the present invention.
【図６】従来の角形電池用外装缶の平面図である。FIG. 6 is a plan view of a conventional outer can for a prismatic battery.
【図７】従来の角形電池用外装缶の平面図である。FIG. 7 is a plan view of a conventional outer can for a prismatic battery.
【図８】図７のＣ−Ｃ線矢視断面図である。8 is a sectional view taken along line CC of FIG. 7;
【図９】従来の角形電池用外装缶を用いた場合の不具合
を示す断面図である。FIG. 9 is a cross-sectional view showing a defect when a conventional outer case for a prismatic battery is used.
１：角形電池用外装缶 ２：底部 ３：筒部 ３ａ：筒本体部 ３ｂ：隅部 ４：段差部 1: Outer can for prismatic battery 2: Bottom part 3: Cylindrical part 3a: Cylinder body part 3b: Corner part 4: Step part
Claims (1)
つ、上記筒部は薄板状の筒本体部と、この筒本体部より
肉厚で上記筒部の四隅に設けられる円弧状の隅部とから
構成される角形電池用外装缶おいて、 前記隅部の開口端内周面が切り欠かれて前記隅部の開口
端に段差部が設けられ、この段差部により開口端近傍に
おける前記筒本体部と前記隅部との厚みが略同一となる
ように構成されていることを特徴とする角形電池用外装
缶。1. A bottom portion and a substantially rectangular tubular tubular portion, wherein the tubular portion is a thin plate-shaped tubular body portion, and an arcuate shape that is thicker than the tubular body portion and is provided at four corners of the tubular portion. In an outer can for a prismatic battery composed of a corner portion and a corner portion, a step portion is provided at an opening end of the corner portion by cutting out an inner peripheral surface of an opening end of the corner portion, and the step portion near the opening end. 2. The outer casing for a prismatic battery, wherein the cylindrical main body portion and the corner portion are configured such that the thicknesses thereof are substantially the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8075967A JPH09265966A (en) | 1996-03-29 | 1996-03-29 | Rectangular battery outer packaging can |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8075967A JPH09265966A (en) | 1996-03-29 | 1996-03-29 | Rectangular battery outer packaging can |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09265966A true JPH09265966A (en) | 1997-10-07 |
Family
ID=13591516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8075967A Pending JPH09265966A (en) | 1996-03-29 | 1996-03-29 | Rectangular battery outer packaging can |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09265966A (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001056094A1 (en) * | 2000-01-31 | 2001-08-02 | The Gillette Company | Method for sealing battery container |
| JP2005310579A (en) * | 2004-04-22 | 2005-11-04 | Matsushita Electric Ind Co Ltd | Square secondary battery |
| KR100624952B1 (en) * | 2005-04-25 | 2006-09-19 | 삼성에스디아이 주식회사 | Can for lithium secondary battery and lithium secondary battery using the same |
| JP2013093119A (en) * | 2011-10-24 | 2013-05-16 | Toyota Motor Corp | Battery case |
| CN103311461A (en) * | 2012-03-12 | 2013-09-18 | 株式会社杰士汤浅国际 | Electric storage device |
| EP2650943A1 (en) * | 2012-04-12 | 2013-10-16 | Samsung SDI Co., Ltd. | Rechargeable battery |
| WO2020137645A1 (en) | 2018-12-26 | 2020-07-02 | 東洋製罐株式会社 | Method for producing rectangular can |
| KR102571865B1 (en) * | 2023-02-02 | 2023-08-29 | (주)알루텍 | stepped portion forming devices and methods for battery can |
-
1996
- 1996-03-29 JP JP8075967A patent/JPH09265966A/en active Pending
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001056094A1 (en) * | 2000-01-31 | 2001-08-02 | The Gillette Company | Method for sealing battery container |
| JP2003521098A (en) * | 2000-01-31 | 2003-07-08 | ザ ジレット カンパニー | How to Seal a Battery Container |
| JP2005310579A (en) * | 2004-04-22 | 2005-11-04 | Matsushita Electric Ind Co Ltd | Square secondary battery |
| KR100624952B1 (en) * | 2005-04-25 | 2006-09-19 | 삼성에스디아이 주식회사 | Can for lithium secondary battery and lithium secondary battery using the same |
| JP2013093119A (en) * | 2011-10-24 | 2013-05-16 | Toyota Motor Corp | Battery case |
| CN103311461A (en) * | 2012-03-12 | 2013-09-18 | 株式会社杰士汤浅国际 | Electric storage device |
| EP2650943A1 (en) * | 2012-04-12 | 2013-10-16 | Samsung SDI Co., Ltd. | Rechargeable battery |
| US20130273415A1 (en) * | 2012-04-12 | 2013-10-17 | Robert Bosch Gmbh | Rechargeable battery |
| JP2013222705A (en) * | 2012-04-12 | 2013-10-28 | Samsung Sdi Co Ltd | Secondary battery |
| CN103378317A (en) * | 2012-04-12 | 2013-10-30 | 三星Sdi株式会社 | Rechargeable battery |
| WO2020137645A1 (en) | 2018-12-26 | 2020-07-02 | 東洋製罐株式会社 | Method for producing rectangular can |
| KR102571865B1 (en) * | 2023-02-02 | 2023-08-29 | (주)알루텍 | stepped portion forming devices and methods for battery can |
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