JP2000173576A - Battery - Google Patents
BatteryInfo
- Publication number
- JP2000173576A JP2000173576A JP10344976A JP34497698A JP2000173576A JP 2000173576 A JP2000173576 A JP 2000173576A JP 10344976 A JP10344976 A JP 10344976A JP 34497698 A JP34497698 A JP 34497698A JP 2000173576 A JP2000173576 A JP 2000173576A
- Authority
- JP
- Japan
- Prior art keywords
- lead
- battery
- bent
- radius
- bent portion
- 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
Classifications
-
- 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)
- Connection Of Batteries Or Terminals (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、電池、特に携帯用
無線電話等の小型電子機器に用いられる電池に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a battery, particularly to a battery used for a small electronic device such as a portable radio telephone.
【０００２】[0002]
【従来の技術】携帯用無線電話、携帯用パソコン、携帯
用ビデオカメラ等の小型電子機器が普及している。これ
らの電子機器に内蔵されるリチウムイオン電池などの電
池は、小さくてエネルギー密度が高いほど、また軽いほ
ど好ましい。そのため、従来より、フィルム同士を溶着
してなる電池容器と、この中に収納される電極と、電極
と接続されるとともに、フィルムの溶着されている内面
間を通って電池容器外に露出する平板型のリードとを備
えた電池が使用されている。2. Description of the Related Art Small electronic devices such as portable radio telephones, portable personal computers, and portable video cameras have become widespread. Batteries such as lithium ion batteries incorporated in these electronic devices are preferably smaller and have higher energy density and lighter weight. Therefore, conventionally, a battery container in which films are welded to each other, an electrode housed therein, and a flat plate connected to the electrode and exposed to the outside of the battery container through the space between the welded inner surfaces of the film. Batteries with mold leads are used.
【０００３】電池は、外箱に収納され電池パックとなっ
てから、電子機器内に組み込まれる。このとき、リード
は外箱内に設けられた保護回路等の外部回路に接続され
る。ここで、電子機器をさらに小型化するためには、外
箱の大きさも電池の大きさと同様に小さい方が好まし
い。小さい外箱を使用するためには、外箱内に無駄なス
ペースが生じないように、リードを屈曲させる必要があ
る。[0003] Batteries are housed in an outer box to form a battery pack, and then incorporated into electronic equipment. At this time, the lead is connected to an external circuit such as a protection circuit provided in the outer box. Here, in order to further reduce the size of the electronic device, it is preferable that the size of the outer box is as small as the size of the battery. In order to use a small outer box, it is necessary to bend the lead so that no wasted space is created in the outer box.
【０００４】[0004]
【発明が解決しようとする課題】しかし、リードを曲げ
ようとすると、リードは薄いため破断してしまう。ま
た、曲げることができたとしても、その後に衝撃が加え
られると簡単に破断してしまう。However, when the lead is bent, the lead is broken because the lead is thin. Even if it can be bent, it is easily broken when an impact is applied thereafter.
【０００５】それ故、本発明の目的は、リードが破断す
ることがなく、電子機器のさらなる小型化を可能とする
電池を提供することを目的としている。[0005] Therefore, an object of the present invention is to provide a battery that does not break a lead and that can further reduce the size of an electronic device.
【０００６】[0006]
【課題を解決するための手段】上記目的を達成するた
め、本発明の電池は、フィルム同士を溶着してなる電池
容器と、この中に収納される電極と、前記フィルムの溶
着されている内面間を通って前記電極と外部回路とを接
続するリードとを備え、そのリードが屈曲されている電
池において、リードの屈曲部分の曲率半径が０．５〜４
ｍｍであることを特徴としている。In order to achieve the above object, a battery of the present invention comprises a battery container formed by welding films, an electrode housed therein, and an inner surface of the film to which the film is welded. A lead for connecting the electrode and an external circuit through the space, wherein a bent portion of the lead has a radius of curvature of 0.5 to 4 in a battery in which the lead is bent.
mm.
【０００７】本発明の電池では、リードの屈曲部分の曲
率半径が０．５ｍｍ以上であるため、リードの破断を防
ぐことができる。さらに、曲率半径が４ｍｍ以下である
ので、無駄なスペースができず、従来の電池よりも小型
化され、その結果、電子機器のさらなる小型化が可能と
なる。なお、リードの材質としては、アルミニウム、ニ
ッケル若しくは銅が好ましい。また、リードの屈曲部分
を絶縁性の樹脂で被覆すると、曲げ荷重に対する抵抗力
が増すので、リードの破断を防ぐ効果が一層高まる。リ
ードの屈曲部分に被覆される樹脂としては、例えば、電
池容器と別体のチューブや、電池容器を形成するフィル
ムの延長部分がある。In the battery of the present invention, since the radius of curvature of the bent portion of the lead is 0.5 mm or more, breakage of the lead can be prevented. Furthermore, since the radius of curvature is 4 mm or less, no wasted space is created, and the battery is more compact than a conventional battery. As a result, the electronic device can be further downsized. In addition, as a material of the lead, aluminum, nickel, or copper is preferable. In addition, when the bent portion of the lead is covered with an insulating resin, the resistance to the bending load increases, and the effect of preventing the lead from breaking is further enhanced. Examples of the resin coated on the bent portion of the lead include a tube separate from the battery container and an extension of a film forming the battery container.
【０００８】[0008]
【発明の実施の形態】本発明の実施形態を図面とともに
説明する。図１は、第一実施形態の電池を示す正面図で
あり、図２は、第一実施形態の電池の一部を示す断面図
である。本実施形態の電池１は、電池容器２と、発電要
素３と、リード４とを備えており、また、電池１は外箱
Ｋ内に収納されている。Embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a front view showing the battery of the first embodiment, and FIG. 2 is a cross-sectional view showing a part of the battery of the first embodiment. The battery 1 of the present embodiment includes a battery container 2, a power generation element 3, and a lead 4, and the battery 1 is housed in an outer box K.
【０００９】電池容器２は、外側から順に、表面保護層
２ａ、金属からなるバリア層２ｂ、絶縁性樹脂からなる
溶着層２ｃを積み重ねたラミネートフィルムからなり、
フィルム周縁を熱溶着することによって作製される。ま
た、この中に収納された発電要素３は、集電体に活物質
を塗布してなる正極板、電解液が保持されたセパレー
タ、及び集電体にホスト物質を塗布してなる負極板を順
に積層して渦状に巻いたものである。The battery container 2 is composed of a laminated film in which a surface protective layer 2a, a barrier layer 2b made of metal, and a welding layer 2c made of insulating resin are stacked in order from the outside.
It is produced by heat welding the periphery of the film. The power generating element 3 housed therein is composed of a positive electrode plate formed by applying an active material to a current collector, a separator holding an electrolytic solution, and a negative electrode plate formed by applying a host material to the current collector. They are laminated in order and spirally wound.
【００１０】リード４は、平板型をしており、電池容器
２内の正負極板に接続されるとともに、溶着部２ｄにお
いてラミネートフィルム間より電池容器２外に露出して
いる。また、リード４のラミネートフィルムの端面と交
差する位置は、絶縁性樹脂からなるチューブ５によって
覆われている。これにより電池容器２内の気密性が維持
されるとともに、リード４と電池容器２のバリア層２ｂ
とが接触して短絡するのを防ぐことができる。The lead 4 has a flat plate shape, is connected to the positive and negative plates in the battery case 2, and is exposed outside the battery case 2 between the laminated films at the welded portion 2d. Further, the position where the lead 4 intersects with the end face of the laminate film is covered with a tube 5 made of an insulating resin. Thereby, the airtightness in the battery case 2 is maintained, and the leads 4 and the barrier layer 2 b of the battery case 2 are maintained.
Can be prevented from contacting and short-circuiting.
【００１１】リード４は、電池容器２外で屈曲しなが
ら、外箱Ｋ内に設けられた保護回路Ｐと接続している。
リード４は、曲率半径Ｒが０．５〜４ｍｍの範囲になる
ように治具を用いて折り曲げられている。よって、リー
ド４は破断することがなく、それでいて電池１の全体の
大きさを小さくすることができる。そのため、従来より
も小さい外箱Ｋに電池１を収納することができ、その結
果、電子機器がさらに小型化され得る。なお、リード４
は、幅２〜７ｍｍ、厚さ０．０５〜２．０ｍｍであるこ
とが好ましく、使用に適した材質としてアルミニウム、
ニッケル、銅が挙げられる。The lead 4 is connected to a protection circuit P provided in the outer box K while bending outside the battery container 2.
The lead 4 is bent using a jig such that the radius of curvature R is in the range of 0.5 to 4 mm. Therefore, the lead 4 does not break, and the overall size of the battery 1 can be reduced. Therefore, the battery 1 can be stored in the outer case K smaller than before, and as a result, the electronic device can be further downsized. Note that lead 4
Is preferably 2 to 7 mm in width and 0.05 to 2.0 mm in thickness, and aluminum,
Nickel and copper are mentioned.
【００１２】リード３以外については、従来より使用さ
れてきた材質を使用すれば良い。また、この電池１の製
造方法は、最後にリード３を屈曲させることを除くと、
従来の製造方法と同様である。リード３を屈曲させる際
には、半径０．５〜４ｍｍの治具を屈曲させたい箇所に
当てた状態で、１８０度折り曲げると良い。For the parts other than the lead 3, a material conventionally used may be used. In addition, the method of manufacturing the battery 1 except that the lead 3 is finally bent is as follows.
It is the same as the conventional manufacturing method. When bending the lead 3, it is preferable to bend the lead 3 by 180 degrees with a jig having a radius of 0.5 to 4 mm applied to a portion to be bent.
【００１３】第二実施形態の電池を図３に正面図として
示す。本実施形態の電池１１は、リード１４が屈曲部分
までチューブ６で被覆されている以外は、第一実施形態
の電池１と同じである。チューブ６はリード１４の屈曲
部分を被覆している。そのため、リード１４の曲げ荷重
に対する抵抗力が増し、リード１４がより破断しにくく
なる。また、第一実施形態と同様に、チューブ６によっ
て気密性を維持することができ、さらにリード１４と電
池容器１２のバリア層との短絡を防止することもでき
る。The battery of the second embodiment is shown in FIG. 3 as a front view. The battery 11 of the present embodiment is the same as the battery 1 of the first embodiment except that the lead 14 is covered with the tube 6 up to the bent portion. The tube 6 covers the bent portion of the lead 14. Therefore, the resistance of the lead 14 to the bending load increases, and the lead 14 is less likely to break. Further, similarly to the first embodiment, the airtightness can be maintained by the tube 6, and a short circuit between the lead 14 and the barrier layer of the battery container 12 can be prevented.
【００１４】チューブ６の材質については、本実施形態
では電池容器１２の溶着層とリード１４との間に介在さ
せているので、電池容器１２の溶着層と同じであること
が好ましい。なお、チューブ６をリード１４の屈曲部分
にだけ設けても破断を防止することはできるが、この場
合には溶着層と同じ材質にする必要はない。また、リー
ド１４を屈曲させる際には、第一実施形態と同様に、治
具を用いてリード１４の曲率半径が０．５〜４ｍｍにな
るように曲げると良い。但し、チューブ６の厚さを考慮
しながら、適当な治具を選択しなければならない。例え
ば、チューブ６の厚さが１００μｍである場合には、半
径が０．５〜３ｍｍの治具を選択すると良い。The material of the tube 6 is preferably the same as that of the battery container 12 because the tube 6 is interposed between the lead 14 and the welded layer of the battery container 12 in this embodiment. It is to be noted that, even if the tube 6 is provided only at the bent portion of the lead 14, breakage can be prevented, but in this case, it is not necessary to use the same material as the welding layer. When the lead 14 is bent, similarly to the first embodiment, the lead 14 may be bent so that the radius of curvature of the lead 14 is 0.5 to 4 mm. However, an appropriate jig must be selected in consideration of the thickness of the tube 6. For example, when the thickness of the tube 6 is 100 μm, it is preferable to select a jig having a radius of 0.5 to 3 mm.
【００１５】第三実施形態の電池を図４に正面図として
示す。本実施形態の電池２１では、電池容器２２の溶着
部２２ｄが第一実施形態の電池１のそれよりも長く、リ
ード２４の屈曲部分まで延びている。これ以外について
は第一実施形態の電池１と同じである。したがって、リ
ード２４の屈曲部分は電池容器２２のラミネートフィル
ムと密着し、これによりリード２４の曲げ荷重に対する
抵抗力が増加し、リード２４が一層破断しにくくなる。
また、リード２４を屈曲させる際には、第二実施形態の
場合と同様に、ラミネートフィルムの厚さを考慮しなけ
ればならない。このとき、リード２４の破断だけでな
く、ラミネートフィルムが切れたりしわになったりしな
いように注意する必要がある。FIG. 4 shows a front view of the battery of the third embodiment. In the battery 21 of the present embodiment, the welded portion 22d of the battery container 22 is longer than that of the battery 1 of the first embodiment, and extends to the bent portion of the lead 24. Except for this, it is the same as the battery 1 of the first embodiment. Therefore, the bent portion of the lead 24 comes into close contact with the laminate film of the battery container 22, thereby increasing the resistance to the bending load of the lead 24 and making the lead 24 more difficult to break.
Also, when bending the lead 24, the thickness of the laminate film must be taken into consideration, as in the case of the second embodiment. At this time, care must be taken not only to break the leads 24 but also to prevent the laminate film from breaking or wrinkling.
【００１６】[0016]
【実施例】−実施例１− 図１、２に示す第一実施形態の電池１について、まずリ
ード４を屈曲させる前の状態のものを作製した後、治具
を用いて屈曲させる作業を何回繰り返すとリード４が破
断するかを調べた。治具は、半径が０．２、０．３、
０．４、０．５及び１．０ｍｍのものを用意し、それぞ
れについて５個の電池を用いて試験した。リード４の大
きさについては、幅が３ｍｍで厚さが０．１ｍｍとし、
材質については正極用としてアルミニウムを、負極用と
してニッケルを使用した。結果を表１に示す。なお、リ
ード４以外の条件については次の通りである。EXAMPLES-Example 1 With regard to the battery 1 of the first embodiment shown in FIGS. 1 and 2, first, after preparing a battery before bending the lead 4, what is the operation of bending using a jig? It was examined whether the lead 4 would break if repeated. The jig has a radius of 0.2, 0.3,
0.4, 0.5 and 1.0 mm were prepared, and each was tested using five batteries. Regarding the size of the lead 4, the width is 3 mm and the thickness is 0.1 mm,
Aluminum was used for the positive electrode and nickel was used for the negative electrode. Table 1 shows the results. Note that conditions other than the lead 4 are as follows.
【００１７】電池容器２の表面保護層２ａ、バリア層２
ｂ及び溶着層２ｃの厚さはそれぞれ１２、９、１００μ
ｍであり、材質はＰＥＴ、アルミニウム、酸変性ポリエ
チレンとした。また、正極板の集電体としてアルミニウ
ム箔を、活物質としてリチウムコバルト複合酸化物を使
用し、負極板の集電体として銅箔を、ホスト物質として
黒鉛を使用した。セパレータにはポリエチレン微多孔膜
を用い、電解液としては、ＬｉＰＦ6を１ｍｏｌ／ｌ含
むエチレンカーボネート：メチルエチルカーボネート＝
４：６（体積比）の混合液を用いた。さらに、チューブ
５として厚さ１００μｍの酸変性ポリエチレンを用い
た。The surface protective layer 2a and the barrier layer 2 of the battery case 2
b and the thickness of the welding layer 2c are 12, 9, 100 μm, respectively.
m, and the materials were PET, aluminum, and acid-modified polyethylene. Further, an aluminum foil was used as a current collector of the positive electrode plate, a lithium-cobalt composite oxide was used as an active material, a copper foil was used as a current collector of the negative electrode plate, and graphite was used as a host material. As a separator, a polyethylene microporous membrane was used, and as an electrolyte, ethylene carbonate containing 1 mol / l of LiPF 6 : methyl ethyl carbonate =
A mixed solution of 4: 6 (volume ratio) was used. Further, as the tube 5, an acid-modified polyethylene having a thickness of 100 μm was used.
【００１８】[0018]
【表１】 [Table 1]
【００１９】表１の結果を見れば分かるように、曲率半
径が０．４ｍｍ以下の場合と０．５ｍｍ以上の場合とで
は、顕著な差が認められ、リード４を０．５ｍｍ以上の
曲率半径で屈曲させると破断しにくくなることが明らか
となった。As can be seen from the results in Table 1, there is a remarkable difference between the case where the radius of curvature is 0.4 mm or less and the case where the radius of curvature is 0.5 mm or more. It became clear that it was difficult to break when bent.
【００２０】−実施例２− 図１、２に示す第一実施形態の電池１について、以下の
試験を行った。まず、リード４の曲率半径が０．５ｍｍ
の電池（発明例１）及び１．０ｍｍの電池（発明例２）
を２０個ずつ用意した。続いて、それぞれを外箱Ｋ内に
収納し、リード４を保護回路Ｐに接続した。このとき、
両面テープで電池１を外箱Ｋの内壁に固定した。そし
て、振動（振幅４ｍｍ、振動数１０００ｃｐｍ）を縦方
向、横方向及び垂直方向に一時間ずつ与えた後、リード
４の破断状況を調べた。また、比較例として、曲率半径
が０．２ｍｍ（比較例１）、０．３ｍｍ（比較例２）、
０．４ｍｍ（比較例３）である以外は、発明例１、２と
同じである電池も各２０個用意し、同様に試験した。結
果を表２に示す。なお、リード４その他についての条件
は、実施例１と同じである。Example 2 The following test was performed on the battery 1 of the first embodiment shown in FIGS. First, the radius of curvature of the lead 4 is 0.5 mm
Battery (Invention Example 1) and 1.0 mm battery (Invention Example 2)
Were prepared 20 by 20. Subsequently, each was housed in the outer box K, and the lead 4 was connected to the protection circuit P. At this time,
Battery 1 was fixed to the inner wall of outer box K with double-sided tape. Then, vibration (amplitude: 4 mm, frequency: 1000 cpm) was applied in the vertical direction, the horizontal direction, and the vertical direction for one hour, and then the state of breakage of the lead 4 was examined. Further, as comparative examples, the radii of curvature are 0.2 mm (Comparative Example 1), 0.3 mm (Comparative Example 2),
Except for 0.4 mm (Comparative Example 3), 20 batteries each of which were the same as those of Inventive Examples 1 and 2 were prepared and tested similarly. Table 2 shows the results. The conditions for the lead 4 and others are the same as in the first embodiment.
【００２１】[0021]
【表２】 [Table 2]
【００２２】表２に見られるように、比較例ではいずれ
もリードが破断したのに対し、発明例ではリードが破断
した電池は全く認められなかった。これより、本発明の
電池では、衝撃を加えられてもリードが破断しないこと
が確認された。As can be seen from Table 2, the leads broke in all of the comparative examples, whereas no batteries in which the leads broke were found in the inventive examples. From this, it was confirmed that in the battery of the present invention, the lead did not break even when an impact was applied.
【００２３】−実施例３− 図３に示す第二実施形態の電池１１について、まずリー
ド１４を屈曲させる前の状態のものを作製した後、治具
を用いて屈曲させる作業を何回繰り返すとリード４が破
断するかを調べた。治具は半径が０．２ｍｍのものを使
用し、５個の電池１１を用いて試験した。チューブ６に
ついては、材質を酸変性ポリエチレンとし、厚さを１０
０μｍとした。他の条件は実施例１において示したのと
同じである。また、比較例として、リード１４がチュー
ブ６で被覆されていない以外は、図３の電池１１と同じ
である電池についても同様に試験した。Example 3 Regarding the battery 11 of the second embodiment shown in FIG. 3, first, a lead 14 is prepared before bending, and then the operation of bending using a jig is repeated several times. It was examined whether the lead 4 was broken. The jig used had a radius of 0.2 mm, and was tested using five batteries 11. Tube 6 is made of acid-denatured polyethylene and has a thickness of 10
It was 0 μm. Other conditions are the same as those described in the first embodiment. Also, as a comparative example, a battery that was the same as the battery 11 of FIG. 3 except that the lead 14 was not covered with the tube 6 was similarly tested.
【００２４】その結果、比較例では、正極用リード及び
負極用リードのいずれもが一回目で破断した。それに対
して、チューブ６を被覆させたものでは５０回以上屈曲
させても破断しなかった。これにより、リード１４にチ
ューブ６を被覆させると、リード１４が破断しにくくな
ることが確認された。As a result, in the comparative example, both the positive electrode lead and the negative electrode lead were broken at the first time. In contrast, the tube 6 covered with the tube 6 did not break even if it was bent 50 times or more. Thus, it was confirmed that when the tube 6 was coated on the lead 14, the lead 14 was hardly broken.
【００２５】−実施例４− 図４に示す第三実施形態の電池２１について、次の試験
を行った。まず、リード２４を屈曲させる前の状態のも
のを２個作製した。続いて、そのうちの一つを半径０．
２ｍｍの治具で屈曲させ、もう一つを半径０．６ｍｍの
治具で屈曲させた。そして、各電池のリード２４の屈曲
部分を顕微鏡で観察した。Example 4 The following test was performed on the battery 21 of the third embodiment shown in FIG. First, two leads 24 were prepared before the lead 24 was bent. Subsequently, one of them is assigned a radius of 0.
It was bent with a 2 mm jig, and the other was bent with a 0.6 mm radius jig. Then, the bent portion of the lead 24 of each battery was observed with a microscope.
【００２６】その結果、いずれの電池でもリード２４の
破断は認められなかった。しかし、半径０．２ｍｍの治
具で屈曲させた電池では、屈曲部分の外側のラミネート
フィルムが切れて、また、内側のラミネートフィルムが
しわになっていた。以上より、この実施形態の電池２１
においてリード２４を屈曲させる際には、半径０．５以
上の治具を用いるのが好ましいと言える。As a result, no breakage of the lead 24 was observed in any of the batteries. However, in the battery bent with a jig having a radius of 0.2 mm, the laminated film outside the bent portion was cut, and the laminated film inside was wrinkled. As described above, the battery 21 of this embodiment
In bending the lead 24, it can be said that it is preferable to use a jig having a radius of 0.5 or more.
【００２７】[0027]
【発明の効果】本発明の電池では、リードが破断するこ
とがなく、電子機器のさらなる小型化が可能となる。According to the battery of the present invention, the lead is not broken, and the size of the electronic device can be further reduced.
【図１】第一実施形態の電池を示す正面図である。FIG. 1 is a front view showing a battery according to a first embodiment.
【図２】第一実施形態の電池の一部を示す断面図であ
る。FIG. 2 is a cross-sectional view showing a part of the battery according to the first embodiment.
【図３】第二実施形態の電池を示す正面図である。FIG. 3 is a front view showing a battery according to a second embodiment.
【図４】第三実施形態の電池を示す正面図である。FIG. 4 is a front view showing a battery according to a third embodiment.
１、１１、２１ 電池 ２、１２、２２ 電池容器 ２ａ 表面保護層、２ｂ バリア層、２ｃ 溶着層、２
ｄ、２２ｄ 溶着部 ３ 発電要素 ４、１４、２４ リード ５、６ チューブ Ｋ 外箱 Ｐ 保護回路 Ｒ 曲率半径1, 11, 21 Battery 2, 12, 22 Battery case 2a Surface protective layer, 2b Barrier layer, 2c Welding layer, 2
d, 22d welding part 3 power generation element 4, 14, 24 lead 5, 6 tube K outer box P protection circuit R radius of curvature
Claims (5)
と外部回路とを接続するリードとを備え、そのリードが
屈曲されている電池において、 リードの屈曲部分の曲率半径が０．５〜４ｍｍであるこ
とを特徴とする電池。1. A battery container formed by welding films, an electrode housed in the battery container, and a lead connecting between the electrode and an external circuit through an inner surface of the film where the film is welded. A battery wherein the lead is bent, wherein the radius of curvature of the bent portion of the lead is 0.5 to 4 mm.
しくは銅からなる請求項１に記載の電池。2. The battery according to claim 1, wherein said leads are made of aluminum, nickel or copper.
被覆されている請求項１又は２に記載の電池。3. The battery according to claim 1, wherein the bent portion of the lead is covered with an insulating resin.
前記電池容器と別体のチューブである請求項３に記載の
電池。4. A resin covering a bent portion of the lead,
The battery according to claim 3, wherein the battery is a tube separate from the battery container.
前記電池容器を形成するフイルムの延長部分である請求
項３に記載の電池。5. The resin covering a bent portion of the lead,
The battery according to claim 3, which is an extension of a film forming the battery container.
Priority Applications (8)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34497698A JP4701464B2 (en) | 1998-12-04 | 1998-12-04 | battery |
| EP99954368A EP1049180A4 (en) | 1998-11-06 | 1999-11-04 | Non-aqueous electrolytic secondary cell |
| CN99802036A CN1288594A (en) | 1998-11-06 | 1999-11-04 | Non-aqueous electrolytic secondary cell |
| US09/582,868 US6797429B1 (en) | 1998-11-06 | 1999-11-04 | Non-aqueous electrolytic secondary cell |
| PCT/JP1999/006135 WO2000028607A1 (en) | 1998-11-06 | 1999-11-04 | Non-aqueous electrolytic secondary cell |
| CNB2004100978326A CN1330019C (en) | 1998-11-06 | 1999-11-04 | Nonaqueous secondary electrolytic battery |
| US10/712,530 US7267904B2 (en) | 1998-11-06 | 2003-11-14 | Nonaqueous secondary electrolytic battery |
| US11/553,231 US7348099B2 (en) | 1998-11-06 | 2006-10-26 | Nonaqueous secondary electrolytic battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP34497698A JP4701464B2 (en) | 1998-12-04 | 1998-12-04 | battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2000173576A true JP2000173576A (en) | 2000-06-23 |
| JP4701464B2 JP4701464B2 (en) | 2011-06-15 |
Family
ID=18373441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP34497698A Expired - Lifetime JP4701464B2 (en) | 1998-11-06 | 1998-12-04 | battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP4701464B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007335290A (en) * | 2006-06-16 | 2007-12-27 | Nec Tokin Corp | Laminated battery, and its manufacturing method |
| US8518575B2 (en) | 2003-05-22 | 2013-08-27 | Samsung Sdi Co., Ltd. | Pouch-type lithium secondary battery and fabrication method thereof |
| US8778531B2 (en) | 2004-06-22 | 2014-07-15 | Samsung Sdi Co., Ltd. | Pouch-type lithium polymer battery and method for manufacturing the same |
| US8999566B2 (en) | 2003-05-22 | 2015-04-07 | Samsung Sdi Co., Ltd. | Pouch-type lithium secondary battery and fabrication method thereof |
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| JPH0349726A (en) * | 1989-07-17 | 1991-03-04 | Sanyo Electric Co Ltd | Display device of tableware washing machine |
| JPH08321297A (en) * | 1995-05-26 | 1996-12-03 | Japan Storage Battery Co Ltd | Protection circuit for non-aqueous electrolyte battery |
| JPH10214606A (en) * | 1996-11-28 | 1998-08-11 | Sanyo Electric Co Ltd | Thin type battery of laminated armor body |
| JPH10241736A (en) * | 1997-02-26 | 1998-09-11 | Rohm Co Ltd | Battery structure |
| JPH10302751A (en) * | 1997-04-30 | 1998-11-13 | Fuji Film Selltec Kk | Battery electrode and battery using the same |
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1998
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0349726A (en) * | 1989-07-17 | 1991-03-04 | Sanyo Electric Co Ltd | Display device of tableware washing machine |
| JPH08321297A (en) * | 1995-05-26 | 1996-12-03 | Japan Storage Battery Co Ltd | Protection circuit for non-aqueous electrolyte battery |
| JPH10214606A (en) * | 1996-11-28 | 1998-08-11 | Sanyo Electric Co Ltd | Thin type battery of laminated armor body |
| JPH10241736A (en) * | 1997-02-26 | 1998-09-11 | Rohm Co Ltd | Battery structure |
| JPH10302751A (en) * | 1997-04-30 | 1998-11-13 | Fuji Film Selltec Kk | Battery electrode and battery using the same |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8518575B2 (en) | 2003-05-22 | 2013-08-27 | Samsung Sdi Co., Ltd. | Pouch-type lithium secondary battery and fabrication method thereof |
| US8999566B2 (en) | 2003-05-22 | 2015-04-07 | Samsung Sdi Co., Ltd. | Pouch-type lithium secondary battery and fabrication method thereof |
| US8778531B2 (en) | 2004-06-22 | 2014-07-15 | Samsung Sdi Co., Ltd. | Pouch-type lithium polymer battery and method for manufacturing the same |
| JP2007335290A (en) * | 2006-06-16 | 2007-12-27 | Nec Tokin Corp | Laminated battery, and its manufacturing method |
| US8481199B2 (en) | 2006-06-16 | 2013-07-09 | Nec Energy Devices, Ltd. | Sealed battery with a film casing |
Also Published As
| Publication number | Publication date |
|---|---|
| JP4701464B2 (en) | 2011-06-15 |
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