JPH11170069A - Battery - Google Patents
BatteryInfo
- Publication number
- JPH11170069A JPH11170069A JP10277029A JP27702998A JPH11170069A JP H11170069 A JPH11170069 A JP H11170069A JP 10277029 A JP10277029 A JP 10277029A JP 27702998 A JP27702998 A JP 27702998A JP H11170069 A JPH11170069 A JP H11170069A
- Authority
- JP
- Japan
- Prior art keywords
- aluminum
- plate
- case
- battery
- square
- 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.)
- Granted
Links
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 47
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000000463 material Substances 0.000 claims abstract description 37
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 24
- 239000010935 stainless steel Substances 0.000 claims abstract description 24
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000010248 power generation Methods 0.000 claims 1
- 238000003466 welding Methods 0.000 description 26
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 10
- 229910052759 nickel Inorganic materials 0.000 description 5
- 238000005476 soldering Methods 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 3
- 238000005304 joining Methods 0.000 description 3
- 229910001416 lithium ion Inorganic materials 0.000 description 3
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical group [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 2
- 238000005338 heat storage Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000005253 cladding Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 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
- Pressure Welding/Diffusion-Bonding (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、リチウムイオン二
次電池等の発電要素をアルミニウムケース内に収容して
構成した電池に関し、特に電極部となるアルミニウムケ
ースへの電気的接続を容易にした電池に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery having a power generating element such as a lithium ion secondary battery housed in an aluminum case, and more particularly to a battery which facilitates electrical connection to an aluminum case serving as an electrode portion. It is about.
【０００２】[0002]
【従来の技術】例えば、携帯用電子機器の電源として用
いられる二次電池は、高エネルギー密度であることが要
求されると同時に、軽量化や小型化のためにスペース使
用効率のよい形状が要求されている。これらの要求を満
たす電池として角形のアルミニウムケースを用いたリチ
ウムイオン二次電池が脚光をあびている。2. Description of the Related Art For example, a secondary battery used as a power source of a portable electronic device is required to have a high energy density, and at the same time, to have a shape that is efficient in space use for weight reduction and size reduction. Have been. A lithium-ion secondary battery using a square aluminum case as a battery that meets these requirements is in the spotlight.
【０００３】このリチウムイオン二次電池は、その構造
上からも長期にわたって安定した密閉性が要求されるた
め、有底角形ケースの開口端に封口板をレーザー溶接に
より接合して開口端を封口する。この封口板には負極端
子となるリベットが前記封口板と絶縁して取り付けら
れ、角形ケースを正極端子として電池の正負両電極端子
が構成されている。[0003] Since this lithium ion secondary battery is required to have a stable sealing property for a long period of time even from the viewpoint of its structure, a sealing plate is joined to the opening end of the bottomed square case by laser welding to seal the opening end. . A rivet serving as a negative electrode terminal is attached to the sealing plate in a manner insulated from the sealing plate, and the positive and negative electrode terminals of the battery are configured using the rectangular case as a positive terminal.
【０００４】正負両電極端子には、電池を使用する機器
に対して電気的接続を行うためにリード接続する必要が
あるが、角形ケースがアルミニウム材で形成されている
場合に、抵抗溶接や半田付けが困難であるため、リード
接続が容易な金属板を角形ケースに接合した構造が採用
されている。前記金属板として、アルミニウム板とニッ
ケル板とをクラッド接合したものを角形ケースの底面に
超音波溶接しておくことにより、ニッケル板にリードを
抵抗溶接あるいは半田付けすることが容易となる。たと
えば、特開平９−３２０５６５においては、そのような
リードを使用することが開示されている。しかしなが
ら、それだけでは不十分で、クラッド材中のアルミニウ
ム板の厚さがニッケル板に対し十分厚くない場合、リー
ド板とケースの接合状態が十分でないという問題があっ
た。It is necessary to connect leads to the positive and negative electrode terminals in order to make electrical connection to equipment using a battery. However, when the rectangular case is formed of an aluminum material, resistance welding or soldering is required. Since it is difficult to attach, a structure in which a metal plate that is easily connected to a lead is joined to a rectangular case is employed. The aluminum plate and the nickel plate clad and joined to each other by ultrasonic welding to the bottom surface of the rectangular case as the metal plate facilitate resistance welding or soldering of the lead to the nickel plate. For example, Japanese Patent Application Laid-Open No. 9-320565 discloses the use of such a lead. However, this is not enough, and when the thickness of the aluminum plate in the clad material is not sufficiently thicker than that of the nickel plate, there is a problem that the bonding state between the lead plate and the case is not sufficient.
【０００５】[0005]
【発明が解決しようとする課題】角形ケースにリード接
続するためには、前記クラッド材のニッケル板にリード
を抵抗溶接する手段が多く用いられるが、その溶接時の
熱が角形ケース内に熱的影響を与えないように速やかに
なされることが必要である。そのため、前記ニッケル板
より抵抗溶接の溶接性のよい材質あるいは熱的影響を及
ぼし難い材質が要求されている。In order to connect the lead to the rectangular case, means for resistance welding the lead to the nickel plate of the clad material are often used. It needs to be done promptly so as not to affect. Therefore, there is a demand for a material having better weldability in resistance welding or a material that is less likely to exert a thermal effect than the nickel plate.
【０００６】本発明の目的とするところは、アルミニウ
ム材からなる電池ケースへのリードの接続を容易に行う
ことができる電池を提供することにある。An object of the present invention is to provide a battery capable of easily connecting leads to a battery case made of an aluminum material.
【０００７】[0007]
【課題を解決するための手段】上記目的を達成するため
の本発明は、アルミニウム材を有底筒状に形成した電池
ケース内に発電要素を収容し、この電池ケースの開口端
を封口板により密閉封止した電池において、前記電池ケ
ースの底面に、ステンレス板とアルミニウム板とを接合
し、アルミニウム板の板厚が、ステンレス板の板厚の２
倍以上であるクラッド材を、アルミニウム板側を電池ケ
ース側にして超音波溶接により接合したことを特徴とす
る。In order to achieve the above object, according to the present invention, a power generating element is housed in a battery case having a bottomed cylindrical shape made of an aluminum material, and the open end of the battery case is sealed by a sealing plate. In a hermetically sealed battery, a stainless steel plate and an aluminum plate are joined to the bottom surface of the battery case, and the thickness of the aluminum plate is 2 times the thickness of the stainless steel plate.
The clad material having a size of twice or more is joined by ultrasonic welding with the aluminum plate side facing the battery case side.
【０００８】電池の正極端子となる電池ケースはアルミ
ニウム材で形成されているためリード接続が困難である
が、電池ケースの底面にクラッド材が接合されているの
で、このクラッド材を構成するステンレス板にリードを
抵抗溶接あるいは半田付けすることが容易となる。ステ
ンレス材は熱伝導性が小さいため、抵抗溶接等によるリ
ード接続時の熱が電池ケースに伝わり難く熱的影響を及
ぼすことが抑制される。また、ステンレス材はその電気
抵抗が大きいため抵抗溶接の溶接性に優れているため、
抵抗溶接によるリード接続を迅速に且つ確実に実施する
ことができる。[0008] Although the battery case serving as the positive electrode terminal of the battery is made of aluminum material, it is difficult to make a lead connection. However, since the clad material is bonded to the bottom surface of the battery case, the stainless steel plate forming the clad material is used. The lead can be easily resistance welded or soldered. Since the stainless steel material has low thermal conductivity, the heat at the time of lead connection by resistance welding or the like is not easily transmitted to the battery case, so that thermal influence is suppressed. In addition, stainless steel has high electrical resistance and therefore has excellent weldability in resistance welding.
Lead connection by resistance welding can be quickly and reliably performed.
【０００９】特に、上記構成におけるクラッド材を構成
するアルミニウム板の板厚が、ステンレス板の板厚の２
倍以上に形成されていることによって、ステンレス板の
厚さは必要最低限とし、アルミニウム材である電池ケー
スにクラッド材を超音波溶接により接合するために必要
なアルミニウム板の厚さを確保することができる。In particular, the thickness of the aluminum plate constituting the clad material in the above configuration is 2 times the thickness of the stainless steel plate.
The thickness of the stainless steel plate must be the minimum necessary by being formed more than twice, and the thickness of the aluminum plate necessary for joining the clad material to the aluminum battery case by ultrasonic welding should be secured. Can be.
【００１０】また、クラッド板をケース底面に超音波溶
接することによって、アルミニウム板に対するクラッド
材の接合を容易に行うことができる。[0010] Further, by ultrasonically welding the clad plate to the case bottom surface, the clad material can be easily joined to the aluminum plate.
【００１１】[0011]
【発明の実施の形態】以下、添付図面を参照して本発明
の一実施形態について説明し、本発明の理解に供する。DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the accompanying drawings to provide an understanding of the present invention.
【００１２】図１は、本実施形態に係る角形電池の構成
を示しており、角形電池は、アルミニウム材を有底角筒
形状に形成した角形ケース１内に発電要素を収容し、そ
の開口端に封口板２をレーザー溶接することにより、角
形ケース１内を密閉封止して構成されている。前記封口
板２にはニッケルメッキされた鉄製のリベット５が封口
板２と絶縁して取り付けられ、発電要素に接続されて電
池の負電極端子となり、角形ケース１が正電極端子とな
るように電池電極が形成されている。従って、この角形
電池を電源として使用する機器に対する電気的接続は、
角形ケース１とリベット５とにリード接続されることに
なる。リベット５は前記のようにニッケルメッキされた
鉄製であるので、抵抗溶接等によりリードを接合するこ
とは容易に行えるが、アルミニウム製である角形ケース
１に対する抵抗溶接や半田付けが困難であるため、角形
ケース１に対するリード接合を容易に行い得るようにす
るため、角形ケース１の底面にクラッド材４が超音波溶
接されている。FIG. 1 shows a configuration of a prismatic battery according to the present embodiment. The prismatic battery accommodates a power generating element in a prismatic case 1 in which an aluminum material is formed in a bottomed prismatic tubular shape, and has an open end thereof. The inside of the rectangular case 1 is hermetically sealed by laser-welding the sealing plate 2. A rivet 5 made of nickel-plated iron is attached to the sealing plate 2 so as to be insulated from the sealing plate 2, connected to a power generating element to serve as a negative electrode terminal of the battery, and the square case 1 serves as a positive electrode terminal. Electrodes are formed. Therefore, the electrical connection to equipment that uses this prismatic battery as a power supply is:
Lead connection is made to the rectangular case 1 and the rivet 5. Since the rivet 5 is made of nickel-plated iron as described above, it is easy to join the leads by resistance welding or the like, but it is difficult to perform resistance welding or soldering to the rectangular case 1 made of aluminum. A clad material 4 is ultrasonically welded to the bottom surface of the rectangular case 1 in order to easily perform lead joining to the rectangular case 1.
【００１３】前記クラッド材４は、図２に示すように、
アルミニウム板４ａとステンレス板４ｂとをクラッド接
合して構成されており、アルミニウム板４ａ側を角形ケ
ース１に向けて超音波溶接により角形ケース１の底面に
接合される。本実施形態におけるクラッド材４は、アル
ミニウム板４ａの厚さを０．２ｍｍ、ステンレス板４ｂ
の厚さを０．０５ｍｍに形成しているが、この厚さ比率
はアルミニウム板４ａがステンレス板４ｂの２倍以上に
なるように形成することが望ましい。ステンレス板４ｂ
は抵抗溶接や半田付けを容易に行い得るので角形ケース
１に対するリード接続が容易となり、また、ステンレス
材は熱伝導性が小さいのでリード溶接時の熱が角形ケー
ス１側に伝導し難く角形ケース１内に熱的影響を与える
ことを抑えることができる。また、アルミニウム板４ａ
をアルミニウム材で形成された角形ケース１に当接さ
せ、ステンレス板４ｂに超音波溶接ポイントを当てて超
音波加振し、アルミニウム板４ａと角形ケース１との間
を超音波溶接する。溶接はアルミニウムの同質材間の溶
接となり、溶接による接合が確実になされる。尚、図１
（ｃ）に示す複数の凹部９は、前記超音波溶接ポイント
の当接跡である。The clad material 4 is, as shown in FIG.
The aluminum plate 4a and the stainless steel plate 4b are formed by clad bonding. The aluminum plate 4a is bonded to the square case 1 by ultrasonic welding with the aluminum plate 4a side facing the square case 1. The clad material 4 in the present embodiment has an aluminum plate 4a having a thickness of 0.2 mm and a stainless steel plate 4b.
Is formed to have a thickness of 0.05 mm, but it is desirable that this thickness ratio is formed so that the aluminum plate 4a is at least twice as large as the stainless steel plate 4b. Stainless plate 4b
Can easily perform resistance welding and soldering, so that lead connection to the square case 1 is easy, and since stainless steel has low thermal conductivity, heat during lead welding is difficult to be conducted to the square case 1 side. It is possible to suppress a thermal influence inside. Also, the aluminum plate 4a
Is brought into contact with the rectangular case 1 formed of an aluminum material, an ultrasonic welding point is applied to the stainless steel plate 4b, and ultrasonic vibration is applied, so that the aluminum plate 4a and the rectangular case 1 are ultrasonically welded. Welding is performed between aluminum homogenous materials, and welding is reliably performed. FIG.
The plurality of recesses 9 shown in (c) are contact traces of the ultrasonic welding points.
【００１４】クラッド材は上述のように厚み０．２ｍｍ
のアルミニウム板と厚み０．０５ｍｍのステンレス板を
張り合わせたものを使用したが、超音波溶接でアルミケ
ースに接合する場合、このアルミニウム板とステンレス
板の厚みの比が接合強度に大きく影響することがわかっ
た。理由は明白ではないが以下のように考察する。The clad material has a thickness of 0.2 mm as described above.
The aluminum plate and the stainless steel plate with a thickness of 0.05mm were used for bonding, but when joining to the aluminum case by ultrasonic welding, the ratio of the thickness of this aluminum plate to the stainless plate can greatly affect the bonding strength. all right. Although the reason is not clear, it is considered as follows.
【００１５】超音波溶接は接点に振動を与え、その摩擦
熱により物質を接合する方法である。その際、接点周辺
の温度や伝熱・蓄熱といった環境が近いほど強固に接合
できると考えられる。従って、接点が同じ物質からなる
ことが最も望ましい。以上の観点で本願のクラッド材を
考えると、アルミニウムのように比較的熱伝導性の良い
金属とステンレスのように比較的熱伝導性の悪い金属を
張り合わせた材料であるから、他の金属製部品とアルミ
ニウム部分を溶接する場合、その条件にもよるが、ステ
ンレス部分が溶接部の伝熱・蓄熱といった環境に影響を
与えることが予想される。つまり、本願において溶接す
るケース側のアルミニウムとクラッド材側のアルミニウ
ムの状態が異なり、このことが接合強度に大きく影響し
ていると考えられる。以上のことから、アルミニウム板
の厚みがステンレス板の厚みよりも大きいほうが接合強
度があがると考えられる。図３にクラッド材のアルミニ
ウム部分とステンレス部分の厚み比を変えて、ケースと
の接合強度を測定した結果を示した。図より、アルミニ
ウム厚み／ステンレス厚みの比が２以上で急激に接合強
度が増加していることがわかる。Ultrasonic welding is a method of applying vibration to a contact point and joining materials by frictional heat. At this time, it is considered that the closer the environment such as the temperature around the contact point and the heat transfer / heat storage, the stronger the bonding. Therefore, it is most desirable that the contacts be made of the same material. Considering the clad material of the present application from the above viewpoints, it is a material in which a metal having relatively high thermal conductivity such as aluminum and a metal having relatively low thermal conductivity such as stainless steel are bonded together. When welding aluminum and aluminum, it is expected that the stainless steel will affect the environment such as heat transfer and heat storage of the weld, depending on the conditions. That is, in the present application, the state of the aluminum on the case side and the aluminum on the clad material side to be welded are different from each other, and this is considered to greatly affect the bonding strength. From the above, it is considered that the bonding strength increases when the thickness of the aluminum plate is larger than the thickness of the stainless steel plate. FIG. 3 shows the results of measuring the bonding strength between the clad material and the case while changing the thickness ratio between the aluminum part and the stainless steel part. From the figure, it can be seen that when the ratio of the thickness of aluminum to the thickness of stainless steel is 2 or more, the bonding strength sharply increases.
【００１６】従って、本願のクラッド材はアルミニウム
厚み＞ステンレス厚みとすることが好ましく、その比は
２以上がより好ましい。Therefore, the clad material of the present invention preferably has a thickness of aluminum> thickness of stainless steel, and the ratio is more preferably 2 or more.
【００１７】上記構成になる角形電池の正負両電極端子
にそれぞれリードを接続して電池パックを構成した例を
図４に示している。FIG. 4 shows an example in which leads are connected to the positive and negative electrode terminals of the rectangular battery having the above-described configuration to form a battery pack.
【００１８】図４に示すように、負電極端子となるリベ
ット５に負極リード６の一端を抵抗溶接し、正電極端子
となるクラッド材４に正極リード７の一端を抵抗溶接し
て正負両極を引き出し、負極リード６及び正極リード７
それぞれの他端に充電制御回路を構成する回路基板８を
接続することにより、充電制御回路を備えた電池パック
が構成される。As shown in FIG. 4, one end of a negative electrode lead 6 is resistance-welded to a rivet 5 serving as a negative electrode terminal, and one end of a positive electrode lead 7 is resistance-welded to a cladding material 4 serving as a positive electrode terminal, thereby connecting the positive and negative electrodes. Drawer, negative electrode lead 6 and positive electrode lead 7
By connecting a circuit board 8 constituting a charge control circuit to each other end, a battery pack having a charge control circuit is formed.
【００１９】[0019]
【発明の効果】以上の説明の通り本発明によれば、角形
ケースの底面にステンレス板とアルミニウム板とを接合
したクラッド材が接合されているので、正極電極端子と
なる角形ケースにリードを接続するとき、抵抗溶接や半
田付けが容易なステンレス板を利用することができ、リ
ード接続が容易な角形電池を提供することができる。As described above, according to the present invention, since the clad material in which the stainless steel plate and the aluminum plate are joined to the bottom surface of the rectangular case is joined, the lead is connected to the square case serving as the positive electrode terminal. In this case, a stainless steel plate that can be easily subjected to resistance welding or soldering can be used, and a prismatic battery with easy lead connection can be provided.
【図１】本発明の実施形態に係る角形電池の構成を示す
（ａ）は正面図、（ｂ）は平面図、（ｃ）は底面図、
（ｄ）は側面図。FIG. 1A is a front view, FIG. 1B is a plan view, FIG. 1C is a bottom view, and FIG.
(D) is a side view.
【図２】クラッド材の構成を示す断面図。FIG. 2 is a sectional view showing a configuration of a clad material.
【図３】クラッド材のアルミニウム部分とステンレス部
分の厚み比と、ケースとの接合強度の相関を示すグラ
フ。FIG. 3 is a graph showing a correlation between a thickness ratio between an aluminum part and a stainless steel part of a clad material and a bonding strength with a case.
【図４】角形電池にリード接続してパック電池を構成し
た例を示す斜視図。FIG. 4 is a perspective view showing an example in which a lead battery is connected to a prismatic battery to form a battery pack.
１ 角形ケース ２ 封口板 ４ クラッド材 ４ａ アルミニウム板 ４ｂ ステンレス板 DESCRIPTION OF SYMBOLS 1 Square case 2 Sealing plate 4 Clad material 4a Aluminum plate 4b Stainless plate
フロントページの続き (72)発明者 竹内 崇 大阪府門真市大字門真1006番地 松下電器 産業株式会社内 (72)発明者 妹尾 菊雄 大阪府門真市大字門真1006番地 松下電器 産業株式会社内Continued on the front page (72) Inventor Takashi Takeuchi 1006 Kadoma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Kikuo Senoo 1006 Odaka Kadoma Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd.
Claims (1)
ース内に発電要素を収容し、このケースの開口端を封口
板により密閉封止した電池において、 前記ケースの底面に、ステンレス板とアルミニウム板と
を接合し、アルミニウム板の板厚がステンレス板の板厚
の２倍以上であるクラッド材を、アルミニウム板側をケ
ース側にして超音波溶接により接合したことを特徴とす
る電池。1. A battery in which a power generation element is housed in a case in which an aluminum material is formed in a bottomed cylindrical shape, and an open end of the case is hermetically sealed by a sealing plate. A battery comprising: a plate; and a clad material having an aluminum plate having a thickness of at least twice the thickness of a stainless steel plate, and ultrasonic bonding with the aluminum plate side as a case side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27702998A JP4056147B2 (en) | 1997-09-30 | 1998-09-30 | battery |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9-266094 | 1997-09-30 | ||
| JP26609497 | 1997-09-30 | ||
| JP27702998A JP4056147B2 (en) | 1997-09-30 | 1998-09-30 | battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11170069A true JPH11170069A (en) | 1999-06-29 |
| JP4056147B2 JP4056147B2 (en) | 2008-03-05 |
Family
ID=26547303
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27702998A Expired - Fee Related JP4056147B2 (en) | 1997-09-30 | 1998-09-30 | battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4056147B2 (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004214175A (en) * | 2002-12-27 | 2004-07-29 | Samsung Sdi Co Ltd | Secondary battery and its manufacturing method |
| WO2005036675A1 (en) * | 2003-10-10 | 2005-04-21 | Fukuda Metal Foil & Powder Co., Ltd. | Packaging can for power supply unit, packaging cover for power supply unit, and power supply unit using packaging can or packaging cover |
| JP2006147574A (en) * | 2004-11-18 | 2006-06-08 | Samsung Sdi Co Ltd | Secondary battery and its forming method |
| US7611797B2 (en) | 2002-12-26 | 2009-11-03 | Samsung Sdi Co., Ltd. | Lithium secondary battery with safety device |
| KR100973739B1 (en) * | 2006-05-27 | 2010-08-04 | 히다치 막셀 가부시키가이샤 | Sealed battery |
| US7964303B2 (en) * | 2003-10-17 | 2011-06-21 | Sony Corporation | Structure of thin battery covered by outer packaging film, battery pack, and method for manufacturing battery pack |
| US8313856B2 (en) | 2003-10-17 | 2012-11-20 | Sony Corporation | Structure of thin battery covered by outer packaging film, battery pack, and method for manufacturing battery pack |
| JP2014154548A (en) * | 2013-02-04 | 2014-08-25 | Samsung Sdi Co Ltd | Secondary battery |
| US8962178B2 (en) | 2011-05-25 | 2015-02-24 | Samsung Sdi Co., Ltd. | Battery pack |
-
1998
- 1998-09-30 JP JP27702998A patent/JP4056147B2/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7611797B2 (en) | 2002-12-26 | 2009-11-03 | Samsung Sdi Co., Ltd. | Lithium secondary battery with safety device |
| JP2004214175A (en) * | 2002-12-27 | 2004-07-29 | Samsung Sdi Co Ltd | Secondary battery and its manufacturing method |
| US8334066B2 (en) | 2002-12-27 | 2012-12-18 | Samsung Sdi Co., Ltd. | Secondary battery and manufacturing method thereof |
| WO2005036675A1 (en) * | 2003-10-10 | 2005-04-21 | Fukuda Metal Foil & Powder Co., Ltd. | Packaging can for power supply unit, packaging cover for power supply unit, and power supply unit using packaging can or packaging cover |
| JPWO2005036675A1 (en) * | 2003-10-10 | 2007-10-04 | 福田金属箔粉工業株式会社 | Power supply device outer can, power device outer cover, and power supply device using the outer can or outer cover |
| US7964303B2 (en) * | 2003-10-17 | 2011-06-21 | Sony Corporation | Structure of thin battery covered by outer packaging film, battery pack, and method for manufacturing battery pack |
| US8313856B2 (en) | 2003-10-17 | 2012-11-20 | Sony Corporation | Structure of thin battery covered by outer packaging film, battery pack, and method for manufacturing battery pack |
| JP2006147574A (en) * | 2004-11-18 | 2006-06-08 | Samsung Sdi Co Ltd | Secondary battery and its forming method |
| US7968227B2 (en) | 2004-11-18 | 2011-06-28 | Samsung Sdi Co., Ltd. | Can-type rechargeable battery having connection structure for protection circuit |
| KR100973739B1 (en) * | 2006-05-27 | 2010-08-04 | 히다치 막셀 가부시키가이샤 | Sealed battery |
| US8962178B2 (en) | 2011-05-25 | 2015-02-24 | Samsung Sdi Co., Ltd. | Battery pack |
| JP2014154548A (en) * | 2013-02-04 | 2014-08-25 | Samsung Sdi Co Ltd | Secondary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4056147B2 (en) | 2008-03-05 |
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