JPH10241744A - Nonaqueous electrolyte secondary battery - Google Patents
Nonaqueous electrolyte secondary batteryInfo
- Publication number
- JPH10241744A JPH10241744A JP9058307A JP5830797A JPH10241744A JP H10241744 A JPH10241744 A JP H10241744A JP 9058307 A JP9058307 A JP 9058307A JP 5830797 A JP5830797 A JP 5830797A JP H10241744 A JPH10241744 A JP H10241744A
- Authority
- JP
- Japan
- Prior art keywords
- electrode body
- fixing means
- battery
- secondary battery
- electrolyte secondary
- 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
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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、非水電解質二次電
池に属する。TECHNICAL FIELD The present invention relates to a non-aqueous electrolyte secondary battery.
【０００２】[0002]
【従来の技術】近年、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電子機器が開発され、各種
電子機器が携帯可能な程度に小型化されている。それに
伴って、内蔵される電池としても、高エネルギー密度を
有し、且つ軽量なものが採用されている。そのような要
求を満たす典型的な電池は、特にリチウム金属やリチウ
ム合金等の活物質、又はリチウムイオンをホスト物質
（ここでホスト物質とは、リチウムイオンを吸蔵及び放
出できる物質をいう。）である炭素に吸蔵させたリチウ
ムインターカレーション化合物を負極材料とし、ＬｉＣ
ｌＯ4、ＬｉＰＦ6等のリチウム塩を溶解した非プロトン
性の有機溶媒を電解液とする非水電解質二次電池であ
る。2. Description of the Related Art In recent years, electronic devices such as a portable radio telephone, a portable personal computer, and a portable video camera have been developed, and various electronic devices have been reduced in size to be portable. Along with this, a battery having a high energy density and a light weight is also adopted as a built-in battery. A typical battery that satisfies such a requirement is an active material such as lithium metal or lithium alloy, or a host material containing lithium ions (here, a host material refers to a material that can occlude and release lithium ions). Lithium intercalation compound occluded in a certain carbon is used as a negative electrode material, and LiC
This is a non-aqueous electrolyte secondary battery using an aprotic organic solvent in which a lithium salt such as 10 4 or LiPF 6 is dissolved as an electrolyte.
【０００３】この非水電解質二次電池は、上記の負極材
料をその支持体である負極集電体に保持してなる負極
板、リチウムコバルト複合酸化物のようにリチウムイオ
ンと可逆的に電気化学反応をする正極活物質をその支持
体である正極集電体に保持してなる正極板、電解液を保
持するとともに負極板と正極板との間に介在して両極の
短絡を防止するセパレータからなっている。This non-aqueous electrolyte secondary battery has a negative electrode plate in which the above-mentioned negative electrode material is held on a negative electrode current collector as a support, and a reversible electrochemical reaction with lithium ions such as a lithium-cobalt composite oxide. The positive electrode plate, which holds the positive electrode active material that reacts on the positive electrode current collector that is the support, from the separator that holds the electrolytic solution and intervenes between the negative electrode plate and the positive electrode plate to prevent a short circuit between the two electrodes Has become.
【０００４】非円筒形状の電池の場合、上記正極板及び
負極板は、いずれも薄いシートないし箔状に成形された
ものをセパレーターを介して渦巻き状にかつ断面非円形
状に巻回し、その電極体の最外周をテープで巻き止めす
る。（図４参照）そして、完成した電極体は、ステンレ
ス、ニッケルメッキを施した鉄、又はアルミ製等の金属
からなる電池容器に収納され、電解液を注液後、蓋板で
密封固着して電池が組み立てられる。In the case of a non-cylindrical battery, each of the positive electrode plate and the negative electrode plate is formed into a thin sheet or foil and wound spirally and non-circularly in section through a separator. The outermost circumference of the body is wrapped with tape. (See FIG. 4) The completed electrode body is housed in a battery container made of a metal such as stainless steel, nickel-plated iron, or aluminum. After the electrolyte is injected, the electrode is sealed and fixed with a lid plate. The battery is assembled.
【０００５】[0005]
【発明が解決しようとする課題】ところが、前述のとお
り、電池容器にはステンレス、ニッケルメッキを施した
鉄製のものがあり、気密性が高く、かつ機械的強度に優
れてはいるものの電池の軽量化や電池容器の材料、デザ
イン化には大きな制約となる。However, as described above, some battery containers are made of stainless steel or nickel-plated iron, and have high airtightness and excellent mechanical strength, but have a light weight. There are significant restrictions on the design and design of materials and battery containers.
【０００６】その問題を解決するものとして電極体をア
ルミニウムラミネートシートで構成した電池容器に収納
する方法が提案されている。In order to solve the problem, there has been proposed a method in which an electrode body is housed in a battery container formed of an aluminum laminate sheet.
【０００７】しかしながら、従来の非円形状の渦巻き電
極体の構成のままでアルミニウムラミネートシート製の
電池容器に収納し、容器を密閉した場合、電極体の巻き
止めがゆるみ、電極間距離が不均一になり、電池性能の
低下を招くという問題が生じた。However, if the conventional non-circular spiral electrode body is housed in a battery container made of an aluminum laminate sheet and the container is hermetically sealed, the winding of the electrode body is loosened and the distance between the electrodes is uneven. , Resulting in a problem of lowering the battery performance.
【０００８】そこで、本発明は電池性能の低下を招くこ
となく、かつ製造工程における煩雑さを招くことのな
い、断面非円形状の渦巻き電極体と、金属ラミネートシ
ート（又はフィルム）を構成要素とする電池容器とを用
いた非水電解質二次電池を提供する。Therefore, the present invention comprises a spirally wound electrode body having a non-circular cross section and a metal laminate sheet (or film), which do not cause deterioration in battery performance and do not cause complications in the manufacturing process. And a non-aqueous electrolyte secondary battery using the battery container.
【０００９】[0009]
【課題を解決するための手段】そこで、第１の発明にか
かかる非水電解質二次電池は、断面非円形状に巻回され
た電極体が金属ラミネートシートより構成される電池容
器に収納されており、電極体の巻き止めをする固定手段
が、巻き軸と平行な電極体側面と、電極体上面又は／及
び下面とに配されており、前記固定手段が孔を有するこ
とを特徴とする。Therefore, a non-aqueous electrolyte secondary battery according to the first invention is housed in a battery container in which an electrode body wound in a non-circular cross section is formed of a metal laminate sheet. Fixing means for stopping the winding of the electrode body are arranged on the side of the electrode body parallel to the winding axis and on the upper surface and / or lower surface of the electrode body, and the fixing means has a hole. .
【００１０】第１の発明にかかる第２の発明は、前記固
定手段は貫通孔が形成された樹脂テープであり、前記樹
脂テープが、電極体の側面では巻き軸と平行に、かつ電
極体上面と下面とでは巻き軸と垂直になるよう電極体に
巻回されたことを特徴とする。According to a second aspect of the present invention, the fixing means is a resin tape having a through-hole formed therein, and the resin tape is parallel to a winding axis on a side surface of the electrode body and on an upper surface of the electrode body. And the lower surface is wound around the electrode body so as to be perpendicular to the winding axis.
【００１１】金属ラミネートシートの金属とは、特には
アルミニウム、又はその合金などが例示され、他のもの
としてはチタン箔などがあげられる。また、金属ラミネ
ートシートの樹脂層や金属箔層はそれぞれ１層に限定さ
れるものでもなく、２層以上であってもかまわない。The metal of the metal laminate sheet is, in particular, aluminum or an alloy thereof, and other examples include titanium foil. Further, the resin layer and the metal foil layer of the metal laminate sheet are not limited to one layer each, and may be two or more layers.
【００１２】[0012]
【発明の実施の形態】本発明の一実施の形態を図面とと
もに説明する。図１は本発明になる非水電解質二次電池
の説明図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an explanatory diagram of a non-aqueous electrolyte secondary battery according to the present invention.
【００１３】本実施の形態における非水電解質二次電池
１は、正極板、負極板及びセパレータからなる電極体１
２が非水系の電解液（図示省略）とともに電池容器に収
納されている。The non-aqueous electrolyte secondary battery 1 according to the present embodiment has an electrode assembly 1 comprising a positive electrode plate, a negative electrode plate, and a separator.
2 is stored in a battery container together with a non-aqueous electrolyte (not shown).
【００１４】正極板は、集電体に活物質としてリチウム
コバルト複合酸化物が保持されたものである。集電体
は、厚さ６μｍのＰＥＴ膜の両面に厚さ４μｍのアルミ
ニウム箔を重ね合わせて接着剤で接着することによって
得たものである。正極板は、結着剤であるポリフッ化ビ
ニリデン８部と導電剤であるアセチレンブラック５部と
を活物質８７部とともに混合し、適宜Ｎ−メチルピロリ
ドンを加えてペースト状に調製した後、その集電体材料
の両面に塗布、乾燥することによって製作した。The positive electrode plate has a current collector in which a lithium-cobalt composite oxide is held as an active material. The current collector was obtained by laminating an aluminum foil having a thickness of 4 μm on both sides of a PET film having a thickness of 6 μm and bonding the aluminum foil with an adhesive. The positive electrode plate was prepared by mixing 8 parts of polyvinylidene fluoride as a binder and 5 parts of acetylene black as a conductive agent together with 87 parts of an active material, appropriately adding N-methylpyrrolidone to prepare a paste, and then collecting the paste. It was manufactured by applying and drying both sides of an electric conductor material.
【００１５】負極板の集電体は、厚さ１２μｍのＰＥＴ
膜の両面に銅をスパッタリングした後、厚さ１μｍの銅
を電解メッキすることによって得た。The current collector of the negative electrode plate is a PET having a thickness of 12 μm.
After sputtering copper on both surfaces of the film, the film was obtained by electroplating copper having a thickness of 1 μm.
【００１６】負極板は、その集電体の両面に、ホスト物
質としてのグラファイト（黒鉛）８６部と結着剤として
のポリフッ化ビニリデン１４部とを混合しペースト状に
調製したものを塗布、乾燥することによって製作され
た。The negative electrode plate is prepared by mixing 86 parts of graphite (graphite) as a host substance and 14 parts of polyvinylidene fluoride as a binder to prepare a paste on both surfaces of the current collector, and applying and drying the mixture. It was made by doing.
【００１７】セパレータは、ポリエチレン微多孔膜であ
る。また、電解液は、ＬｉＰＦ6を１ｍｏｌ／ｌ含むエ
チレンカーボネート：ジエチルカーボネート＝１：１
（体積比）の混合液である。The separator is a polyethylene microporous membrane. The electrolyte was ethylene carbonate: diethyl carbonate = 1: 1 containing 1 mol / l of LiPF 6.
(Volume ratio).
【００１８】それぞれの寸法は、正極板が厚さ１８０μ
ｍ、幅２９ｍｍで、セパレータが厚さ２５μｍ、幅３３
ｍｍで、負極板が厚さ１７０μｍ、幅３１ｍｍとなって
おり、 正極板及び負極板にそれぞれリード端子を溶接
し、順に重ね合わせてポリエチレンの長方形状の巻芯を
中心として、長辺が電極体の巻き軸と平行となるよう、
その周囲に渦状に巻き、断面非円形状の電極体にした。
そして、電極の終縁部分をポリエチレンからなる巻き止
め用テープ（ここでは接着剤が片面に塗布している）で
電極幅（巻き軸と平行な電極体の長さ）に相当する長さ
を巻き軸と平行な電極体側壁部分に貼り付け電極体２を
巻き止め固定した。（図４参照）そして、アルミニウム
ラミネートフィルムを袋状に成形した電池容器６に収納
した。次に、リード端子を固定して密封し、電解液を各
電極、セパレータが十分湿潤し、電極群外にフリーな電
解液が存在しない量を真空注液した。The respective dimensions are such that the positive electrode plate has a thickness of 180 μm.
m, width 29 mm, separator thickness 25 μm, width 33
mm, the negative electrode plate has a thickness of 170 μm and a width of 31 mm. Lead terminals are welded to the positive electrode plate and the negative electrode plate, respectively, and superposed in order. So that it is parallel to the winding axis of
It was spirally wound around it to form an electrode body having a non-circular cross section.
Then, the end portion of the electrode is wound around a length corresponding to the electrode width (the length of the electrode body parallel to the winding axis) with a tape for stopping winding made of polyethylene (here, an adhesive is applied on one side). The electrode body 2 was stuck and fixed to the side wall of the electrode body parallel to the axis. (See FIG. 4) Then, the aluminum laminate film was housed in a battery container 6 formed into a bag shape. Next, the lead terminal was fixed and hermetically sealed, and the electrolyte was sufficiently wetted on each electrode and the separator, and vacuum injection was performed in such an amount that no free electrolyte was present outside the electrode group.
【００１９】次に、密封溶着を行って設計容量８００ｍ
Ａｈ（従来電池での仕様）の電池（Ａ）をそれぞれ５個
製した。Next, sealing welding is performed to achieve a design capacity of 800 m.
Five batteries (A) of Ah (specification of the conventional battery) were manufactured.
【００２０】ただし、電解液量を４ｍｌとした。However, the amount of the electrolyte was 4 ml.
【００２１】気密封口用の電池容器６は、図２のように
最外層に表面保護層１５として１２μｍのＰＥＴフィル
ムを有し、その下にバリア層１６として９μｍのアルミ
ニウム箔をウレタン系接着剤で接着している。さらに、
その下に熱融着層１７として１００μｍの酸変性ＬＤＰ
Ｅ（低密度ポリエチレン）を有するラミネートフィルム
からなっている。As shown in FIG. 2, the airtight battery container 6 has a 12 μm PET film as a surface protective layer 15 on the outermost layer, and a 9 μm aluminum foil as a barrier layer 16 thereunder with a urethane adhesive. Glued. further,
An acid-modified LDP having a thickness of 100 μm
It is made of a laminated film having E (low density polyethylene).
【００２２】また、リード端子５、５’は、５０から１
００μｍの銅、アルミニウム、ニッケルなどの金属導体
に金属との接着層１８としての５０μｍの酸変性ＬＤＰ
Ｅと、その外側に電解液バリア層１９としての７０μｍ
のエバール樹脂（クラレ製のエチレンビニルアルコール
共重合樹脂層を設けたものである。ここでは、正極にア
ルミニウム、負極に銅を用いている。ただし、電池容器
６やリード５，５’の構成及び電池容器からの引出し等
はこれらに限るものでないことはいうまでもない。The lead terminals 5 and 5 'are connected from 50 to 1
50 μm acid-modified LDP as an adhesive layer 18 with a metal conductor of 00 μm copper, aluminum, nickel, etc.
E and 70 μm on the outside as an electrolyte barrier layer 19
(A Kuraray ethylene-vinyl alcohol copolymer resin layer is provided. Here, aluminum is used for the positive electrode and copper is used for the negative electrode. However, the structure of the battery container 6 and the leads 5 and 5 ′ Needless to say, drawing out from the battery container is not limited to these.
【００２３】次に、上記と同様にして比較電池（Ｂ）を
５個作製した。ただし、ポリプロピレン製の巻き止め用
テープ１０を巻き軸と平行な電極体側面２３、電極体の
上面２０、巻き軸と平行な電極体側面２３に対向する
（反対側）側面２１、下面２２および側面２３の順に、
電極体側面の電極終端部分を覆うよう、巻回して電極体
２を固定した点が異なる。（図３参照） 次に、比較用電池と同様にして本発明になる電池（Ｃ）
を５個作製した。ただし、固定手段であるプロピレン製
の巻き止めテープ１０の電極体２の上面２０に位置する
部分には、複数の孔１３をあけている点が異なる。Next, five comparative batteries (B) were produced in the same manner as described above. However, the polypropylene winding tape 10 is provided with the electrode body side surface 23 parallel to the winding axis, the upper surface 20 of the electrode body, the side surface 21 opposite (opposite to) the electrode body side surface 23 parallel to the winding axis, the lower surface 22 and the side surface. In the order of 23,
The difference is that the electrode body 2 is fixed by being wound so as to cover the electrode terminal portion on the side surface of the electrode body. (See FIG. 3) Next, the battery (C) according to the present invention in the same manner as the comparative battery
Were produced. However, a difference is that a plurality of holes 13 are formed in a portion of the propylene-made winding tape 10 serving as a fixing means, which is located on the upper surface 20 of the electrode body 2.
【００２４】なお、テープの接着剤として、ここではポ
リフッ化ビニリデン（ＰＶｄＦ）をＮＭＰ溶媒に溶かし
たものを用いた。また、接着剤は片面の全面に塗布して
いるが、電極体２の巻き止めができる程度でよい。As the adhesive for the tape, a material obtained by dissolving polyvinylidene fluoride (PVdF) in an NMP solvent was used. Although the adhesive is applied to the entire surface on one side, it is sufficient that the electrode body 2 can be prevented from being wound.
【００２５】［試験および結果］注液時間を測定した結
果、Ａは３０から３５秒であり、Ｂは９０秒以上であ
り、本発明になるＣは２５から３０秒であり、従来電池
と遜色のない結果であった。[Test and Results] As a result of measuring the injection time, A was 30 to 35 seconds, B was 90 seconds or more, and C according to the present invention was 25 to 30 seconds, which was inferior to the conventional battery. There was no result.
【００２６】次に、これらの電池Ａ、Ｂ及びＣを数時間
放置し、０．５Ｃの電流で３時間、４．１Ｖまで定電流
定電圧充電を行って満充電状態とし２．７５Ｖまで放電
するという条件でサイクル特性試験を行った。このとき
の結果を図３に示す。Next, these batteries A, B and C are left for several hours, and are charged at a constant current of 0.5 C for 3 hours to a constant current and a constant voltage up to 4.1 V to be fully charged, and discharged to 2.75 V. A cycle characteristic test was performed under the condition that the test was performed. FIG. 3 shows the result at this time.
【００２７】いずれの値も各電池の平均値を示す。Each value indicates the average value of each battery.
【００２８】従来電池Ａでは、Ｂ及びＣと比較して放電
容量が低く、サイクル数にも延びか見られなかった。こ
の原因を追求するため解体調査したところ、巻き止めが
ゆるんでおり、極板間に隙間ができていた。In the conventional battery A, the discharge capacity was lower than that of the batteries B and C, and it could be seen that the number of cycles was increased. A disassembly survey to find out the cause revealed that the winding was loose and gaps were formed between the plates.
【００２９】次に、ＢとＣとを比べると、放電容量、サ
イクル特性ともにＢよりもＣの方が優れていることが示
された。この原因としては、電極体の上面又は下面の正
極板とセパレーターと負極板との隙間から電解液が浸透
するため、固定手段であるテープによってその隙間を塞
がれてしまった電池Ｂの方が、電解液を十分かつまんべ
んなく浸透できなかったものと考えられる。Next, when B and C were compared, it was shown that C was superior to B in both discharge capacity and cycle characteristics. As a cause of this, since the electrolytic solution penetrates from the gap between the positive electrode plate on the upper or lower surface of the electrode body and the separator and the negative electrode plate, the battery B in which the gap is closed by the tape as the fixing means is better. It is probable that the electrolyte solution could not penetrate sufficiently and uniformly.
【００３０】本発明における固定手段は、上記の樹脂テ
ープに限らず、電極体を挟持する、たとえば樹脂製のコ
の字状クリップなどが適用可能であり、またこれに限定
されるものでもない。樹脂テープの材料としては、ポリ
エチレン、ポリプロピレン、ポリフェニレンスルフィ
ド、ポリイミド等があげられ、接着剤としては、アクリ
ル酸系やゴム系の従来公知のものが適用でき、耐電解液
性のものであればよい。The fixing means in the present invention is not limited to the above-described resin tape, but may be, for example, a resin U-shaped clip for holding the electrode body, and is not limited to this. Examples of the material of the resin tape include polyethylene, polypropylene, polyphenylene sulfide, polyimide, and the like.As the adhesive, an acrylic acid-based or rubber-based conventionally known material can be used, as long as it has an electrolytic solution resistance. .
【００３１】固定手段は電解液やガスの移動を妨げない
よう、孔が設けられていればよく、貫通孔でもよいし、
多孔性の材料であってもよい。特に電解液が注入される
側の電極端面に少なくとも孔が設けられていればよい。The fixing means may be provided with a hole so as not to hinder the movement of the electrolyte or gas, and may be a through hole,
It may be a porous material. In particular, it suffices that at least a hole is provided in the electrode end face on the side where the electrolyte is injected.
【００３２】さらに、非円形状とは、図４に示されるも
のだけでなく、たとえば対向する直線部が内側に窪んだ
形としてもよいし、楕円状としてもよいし、またこれら
に限定されるものでもない。Further, the non-circular shape is not limited to the shape shown in FIG. 4, but may be, for example, a shape in which opposed straight portions are depressed inward, an elliptical shape, or limited to these. Not even a thing.
【００３３】[0033]
【発明の効果】本発明によれば、電池性能の低下を招く
ことなく、かつ製造工程における煩雑さを招くことのな
い、断面非円形状の渦巻き電極体と、金属ラミネートシ
ート（又はフィルム）を構成要素とする電池容器を用い
た非水電解質二次電池を提供することができる。According to the present invention, a spiral electrode body having a non-circular cross section and a metal laminate sheet (or film) which do not cause a decrease in battery performance and do not cause complication in a manufacturing process are provided. A non-aqueous electrolyte secondary battery using a battery container as a component can be provided.
【図１】本発明になる一実施の形態にかかる非水電解質
二次電池の説明図である。FIG. 1 is an explanatory diagram of a nonaqueous electrolyte secondary battery according to one embodiment of the present invention.
【図２】本発明になる一実施の形態にかかる非水電解質
二次電池のリード端子拡大断面説明図である。FIG. 2 is an enlarged cross-sectional explanatory view of a lead terminal of the nonaqueous electrolyte secondary battery according to one embodiment of the present invention.
【図３】本発明になる一実施の形態にかかる電極体の説
明図である。FIG. 3 is an explanatory diagram of an electrode body according to one embodiment of the present invention.
【図４】電極体の説明図である。FIG. 4 is an explanatory diagram of an electrode body.
【図５】サイクル特性試験の結果を示す図である。FIG. 5 is a diagram showing the results of a cycle characteristic test.
１ 非水電解質二次電池 ５ 正極リード端子 ５’ 負極リード端子 ６ 電池容器 １０ 固定手段 １２ 電極体 １３ 孔 １５ 表面保護層 １６ バリア層 １７ 熱融着層 １８ 接着層 １９ 電解液バリア層 DESCRIPTION OF SYMBOLS 1 Non-aqueous electrolyte secondary battery 5 Positive electrode lead terminal 5 'Negative electrode lead terminal 6 Battery container 10 Fixing means 12 Electrode body 13 Hole 15 Surface protective layer 16 Barrier layer 17 Thermal fusion layer 18 Adhesive layer 19 Electrolyte barrier layer
Claims (2)
ラミネートシートより構成される電池容器に収納された
非水電解質二次電池において、 電極体の巻き止めをする固定手段が、電極体巻き軸と平
行な電極体側面と、電極体上面又は／及び下面とに配さ
れており、 前記固定手段が孔を有することを特徴とする非水電解質
二次電池。1. A non-aqueous electrolyte secondary battery in which an electrode body wound in a non-circular cross section is housed in a battery container made of a metal laminate sheet, wherein the fixing means for stopping the winding of the electrode body is an electrode. A nonaqueous electrolyte secondary battery which is arranged on a side surface of an electrode body parallel to a body winding axis and on an upper surface and / or a lower surface of the electrode body, wherein the fixing means has a hole.
脂テープであり、前記樹脂テープが、電極体の側面では
巻き軸と平行に、かつ電極体上面と下面とでは巻き軸と
垂直になるよう電極体に巻回されたことを特徴とする請
求項１記載の非水電解質二次電池。2. The fixing means is a resin tape having a through hole formed therein, and the resin tape is parallel to a winding axis on a side surface of the electrode body and perpendicular to the winding axis on an upper surface and a lower surface of the electrode body. The non-aqueous electrolyte secondary battery according to claim 1, wherein the non-aqueous electrolyte secondary battery is wound around an electrode body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9058307A JPH10241744A (en) | 1997-02-25 | 1997-02-25 | Nonaqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9058307A JPH10241744A (en) | 1997-02-25 | 1997-02-25 | Nonaqueous electrolyte secondary battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10241744A true JPH10241744A (en) | 1998-09-11 |
Family
ID=13080591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9058307A Pending JPH10241744A (en) | 1997-02-25 | 1997-02-25 | Nonaqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10241744A (en) |
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|---|---|---|---|---|
| JP2000100466A (en) * | 1998-09-22 | 2000-04-07 | Samsung Display Devices Co Ltd | Secondary battery with fixing member for electrode roll |
| JP2000106167A (en) * | 1998-09-30 | 2000-04-11 | Mitsubishi Electric Corp | Battery |
| JP2000173658A (en) * | 1998-12-02 | 2000-06-23 | Nitto Denko Corp | Glue, adhesive or adhesive tape sheet for battery |
| KR20010027275A (en) * | 1999-09-13 | 2001-04-06 | 김순택 | Sealed battery |
| JP2001243991A (en) * | 2000-02-28 | 2001-09-07 | Japan Storage Battery Co Ltd | Non-aqueous electrolyte battery device and battery pack |
| JP2002198098A (en) * | 2000-12-25 | 2002-07-12 | Mitsubishi Cable Ind Ltd | Sheet-like lithium secondary cell |
| JP2002198099A (en) * | 2000-12-25 | 2002-07-12 | Mitsubishi Cable Ind Ltd | Sheet-like lithium secondary cell |
| JP2003178792A (en) * | 2001-11-06 | 2003-06-27 | Samsung Sdi Co Ltd | Secondary battery |
| KR20040042375A (en) * | 2002-11-14 | 2004-05-20 | 삼성에스디아이 주식회사 | Jelly-roll electrode assembly and secondary battery therewith |
| KR100440936B1 (en) * | 2002-02-06 | 2004-07-21 | 삼성에스디아이 주식회사 | Lithium secondary battery |
| US6797429B1 (en) | 1998-11-06 | 2004-09-28 | Japan Storage Battery Co, Ltd. | Non-aqueous electrolytic secondary cell |
| KR100502323B1 (en) * | 1998-12-28 | 2005-09-26 | 삼성에스디아이 주식회사 | Electrode roll in secondary battery |
| KR100670482B1 (en) | 2005-07-07 | 2007-01-16 | 삼성에스디아이 주식회사 | Jelly-roll electrode assembly and the secondary batter employing the same |
| KR100759396B1 (en) | 2005-12-29 | 2007-09-19 | 삼성에스디아이 주식회사 | Secondary battery |
| US7410724B2 (en) * | 2001-09-04 | 2008-08-12 | Nec Corporation | Film packaged battery having a cupped portion |
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| JP2014532961A (en) * | 2011-10-31 | 2014-12-08 | エスケー イノベーション カンパニー リミテッドＳｋ Ｉｎｎｏｖａｔｉｏｎ Ｃｏ．，Ｌｔｄ． | Battery cell jelly roll for secondary battery |
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-
1997
- 1997-02-25 JP JP9058307A patent/JPH10241744A/en active Pending
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| JP2000100466A (en) * | 1998-09-22 | 2000-04-07 | Samsung Display Devices Co Ltd | Secondary battery with fixing member for electrode roll |
| JP2000106167A (en) * | 1998-09-30 | 2000-04-11 | Mitsubishi Electric Corp | Battery |
| US6797429B1 (en) | 1998-11-06 | 2004-09-28 | Japan Storage Battery Co, Ltd. | Non-aqueous electrolytic secondary cell |
| US7348099B2 (en) | 1998-11-06 | 2008-03-25 | Gs Yuasa Corporation | Nonaqueous secondary electrolytic battery |
| US7267904B2 (en) | 1998-11-06 | 2007-09-11 | Gs Yuasa Corporation | Nonaqueous secondary electrolytic battery |
| JP2000173658A (en) * | 1998-12-02 | 2000-06-23 | Nitto Denko Corp | Glue, adhesive or adhesive tape sheet for battery |
| KR100502323B1 (en) * | 1998-12-28 | 2005-09-26 | 삼성에스디아이 주식회사 | Electrode roll in secondary battery |
| KR20010027275A (en) * | 1999-09-13 | 2001-04-06 | 김순택 | Sealed battery |
| JP2001243991A (en) * | 2000-02-28 | 2001-09-07 | Japan Storage Battery Co Ltd | Non-aqueous electrolyte battery device and battery pack |
| JP2002198099A (en) * | 2000-12-25 | 2002-07-12 | Mitsubishi Cable Ind Ltd | Sheet-like lithium secondary cell |
| JP2002198098A (en) * | 2000-12-25 | 2002-07-12 | Mitsubishi Cable Ind Ltd | Sheet-like lithium secondary cell |
| US7410724B2 (en) * | 2001-09-04 | 2008-08-12 | Nec Corporation | Film packaged battery having a cupped portion |
| USRE43449E1 (en) * | 2001-09-04 | 2012-06-05 | Nec Corporation | Film packaged battery having a cupped portion |
| JP2003178792A (en) * | 2001-11-06 | 2003-06-27 | Samsung Sdi Co Ltd | Secondary battery |
| KR100467690B1 (en) * | 2001-11-06 | 2005-01-24 | 삼성에스디아이 주식회사 | Tape for electrode jelly-roll of secondary battery and electrode assembly therewith |
| US7118824B2 (en) * | 2001-11-06 | 2006-10-10 | Samsung Sdi Co., Ltd. | Secondary battery with improved finishing tape and method of making the secondary battery |
| KR100440936B1 (en) * | 2002-02-06 | 2004-07-21 | 삼성에스디아이 주식회사 | Lithium secondary battery |
| KR20040042375A (en) * | 2002-11-14 | 2004-05-20 | 삼성에스디아이 주식회사 | Jelly-roll electrode assembly and secondary battery therewith |
| US7618737B2 (en) | 2004-09-24 | 2009-11-17 | Samsung Sdi Co., Ltd. | Lithium secondary battery and method for manufacturing the same |
| KR100670482B1 (en) | 2005-07-07 | 2007-01-16 | 삼성에스디아이 주식회사 | Jelly-roll electrode assembly and the secondary batter employing the same |
| KR100759396B1 (en) | 2005-12-29 | 2007-09-19 | 삼성에스디아이 주식회사 | Secondary battery |
| US8920968B2 (en) | 2008-03-14 | 2014-12-30 | Nec Corporation | Overlaying member and film-covered electrical device |
| JP2014532961A (en) * | 2011-10-31 | 2014-12-08 | エスケー イノベーション カンパニー リミテッドＳｋ Ｉｎｎｏｖａｔｉｏｎ Ｃｏ．，Ｌｔｄ． | Battery cell jelly roll for secondary battery |
| JP2014063569A (en) * | 2012-09-19 | 2014-04-10 | Hitachi Vehicle Energy Ltd | Square battery |
| US10862080B2 (en) | 2017-10-26 | 2020-12-08 | Samsung Electronics Co., Ltd. | Battery and electronic device including the same |
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