JPH09283149A - Collector for battery plate and battery using this collector - Google Patents
Collector for battery plate and battery using this collectorInfo
- Publication number
- JPH09283149A JPH09283149A JP8114107A JP11410796A JPH09283149A JP H09283149 A JPH09283149 A JP H09283149A JP 8114107 A JP8114107 A JP 8114107A JP 11410796 A JP11410796 A JP 11410796A JP H09283149 A JPH09283149 A JP H09283149A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- current collector
- thin film
- collector
- electrode plate
- 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
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、リチウム二次電池
用極板等の電池用極板の集電体及びその集電体を用いた
電池に属する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current collector of a battery electrode plate such as a lithium secondary battery electrode plate and a battery using the current collector.
【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、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インターカレ
ーション等のリチウム系を負極材料とし、ＬｉＣＩ
Ｏ4、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リチウム二次電池である。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, as a built-in battery, a battery having a high energy density and being lightweight is adopted. A typical battery satisfying such requirements is an active material such as lithium metal or a lithium alloy, and a lithium ion host material (here, the host material means a material capable of inserting and extracting lithium ion). LiCI such as intercalation occluded in carbon is used as a negative electrode material, and LiCI
The lithium secondary battery uses an aprotic organic solvent in which a lithium salt such as O 4 or LiPF 6 is dissolved as an electrolytic solution.
【０００３】リチウム二次電池は、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。A lithium secondary battery has a negative electrode plate in which the above-mentioned negative electrode material is held by a negative electrode current collector as a support, and reversibly electrochemically reacts with lithium ions like a lithium cobalt composite oxide. It consists of a positive electrode plate holding the positive electrode active material on a positive electrode current collector as its support, and a separator that holds an electrolytic solution and intervenes between the negative electrode plate and the positive electrode plate to prevent a short circuit between both electrodes. .
【０００４】そして、短冊形状又は円筒形状の電池の場
合、上記正極板、セパレータ及び負極板は、いずれも薄
いシートないし箔状に成形されたものを順に積層し、螺
旋状に巻いて電池容器に収納される。従って、極板は、
一般に活物質又はホスト物質に有機結着剤、導電剤及び
溶剤を混合してペースト状にし、それを支持体表面に塗
布し乾燥後、支持体とともに厚さ方向に加圧成形するこ
とによって製造される。従来、極板の集電体としては、
それ自体の導電性が必要であることから、銅、アルミニ
ウムなどの金属の箔が用いられていた。In the case of a rectangular or cylindrical battery, the positive electrode plate, the separator and the negative electrode plate are each formed by laminating thin sheets or foils in order, and spirally wound into a battery container. Is stored. Therefore, the plates are
Generally, an active material or a host material is mixed with an organic binder, a conductive agent and a solvent to form a paste, which is applied to the surface of the support, dried, and then pressure-formed together with the support in the thickness direction. You. Conventionally, as the collector of the electrode plate,
Metallic foils such as copper and aluminum have been used because of their need for electrical conductivity.
【０００５】[0005]
【発明が解決しようとする課題】リチウム電池に限らず
電池を電源とする機器の場合、機器全体の軽量化及び不
燃化の要請は尽きることがない。従って、電池性能が同
じで有れば軽いほど且つ安全であるほどユーザーに好ま
れる。In the case of a device that uses a battery as a power source, not limited to a lithium battery, the demands for weight reduction and nonflammability of the entire device are endless. Therefore, the lighter and safer the battery performance is, the more the user likes it.
【０００６】しかし、金属箔を薄くするにも生産上及び
取り扱い上の限界がある。また、機器破損等の対策とし
て、ＰＴＣ素子、保護回路、電流遮断機構等が施されて
いるが、火元となる電極自体を不燃化する対策は提案さ
れていない。However, there is a limit in production and handling even if the metal foil is thin. Further, although PTC elements, protection circuits, current interrupting mechanisms, etc. are provided as measures against equipment damage, no measures have been proposed to make the electrodes themselves that are the sources of fire non-combustible.
【０００７】それ故、本発明の目的は、従来の集電体に
対するコンセプトから脱却し、従来の集電体と全く異な
る構成により、電池の軽量化及び不燃化に有効な集電体
並びにそのような集電体を用いた電池を提供することに
ある。Therefore, an object of the present invention is to move away from the concept of a conventional current collector and to have a structure which is completely different from that of the conventional current collector, and which is effective in reducing the weight and incombustibility of the battery and the current collector. Another object is to provide a battery using a different current collector.
【０００８】[0008]
【課題を解決するための手段】その目的を達成するため
に、本発明の電池用極板の集電体は、樹脂膜と、電子伝
導性の薄膜との層状体であることを特徴とする。In order to achieve the object, the current collector of the battery electrode plate of the present invention is characterized by being a layered body of a resin film and an electron conductive thin film. .
【０００９】本発明の集電体は、樹脂膜を芯としている
ので、同じ厚さの金属箔からなる集電体よりも軽い。し
かも、樹脂の多くは、その熱変形温度が有機電解質の発
火点よりも低いので、短絡により発熱しても有機電解液
や高分子電解質等の有機電解質が発火する前に樹脂膜が
熱収縮するか溶けて、電流が遮断される。この点、金属
箔の場合、その融点が有機電解質の発火点よりも高いか
ら、短絡により発熱すると、電極温度が金属箔の融点に
達する前に有機電解質が発火して危険な状態となるのと
異なり、本発明集電体は電流遮断機能を兼ね備える。そ
して、樹脂の多くは絶縁性であるが、本発明の集電体
は、樹脂膜の表面に電子伝導性の薄膜が密着しているの
で、その薄膜を電流が流れる。Since the current collector of the present invention has the resin film as the core, it is lighter than the current collector made of the metal foil having the same thickness. Moreover, since the thermal deformation temperature of many resins is lower than the ignition point of the organic electrolyte, even if heat is generated due to a short circuit, the resin film undergoes thermal contraction before the organic electrolyte such as the organic electrolyte solution or the polymer electrolyte ignites. It melts and the current is cut off. In this regard, in the case of metal foil, since the melting point is higher than the ignition point of the organic electrolyte, if heat is generated due to short-circuit, the organic electrolyte will ignite before the electrode temperature reaches the melting point of the metal foil, resulting in a dangerous state. Differently, the current collector of the present invention has a current interruption function. Although most of the resin is insulative, the current collector of the present invention has an electron-conductive thin film in close contact with the surface of the resin film, so that a current flows through the thin film.
【００１０】このように、本発明の集電体は、軽くて電
流遮断機能を有するので、これを用いた本発明の電池も
軽くて安全である。もちろん、有機電解質電池に限ら
ず、一次電池及び二次電池の区別無く、アルカリ電池、
Ｎｉ−Ｃｄ電池、Ｎｉ−ＨＭ電池、鉛電池など電池全般
において軽量化及び安全化が期待できることは言うまで
もない。更に、金属箔からなる従来の集電体を所定の大
きさに切断加工する際は、切断面に短絡の原因となるバ
リを生じることがあったが、本発明の集電体は、樹脂膜
を芯としているので、切断性に優れ、バリを生じない。As described above, since the current collector of the present invention is light and has the function of blocking current, the battery of the present invention using the current collector is also light and safe. Of course, it is not limited to organic electrolyte batteries, and there is no distinction between primary batteries and secondary batteries, alkaline batteries,
It goes without saying that weight reduction and safety can be expected in all batteries such as Ni-Cd batteries, Ni-HM batteries, and lead batteries. Further, when a conventional current collector made of a metal foil is cut into a predetermined size, burrs may be generated on the cut surface, which may cause a short circuit. The core is excellent in cutting property and does not generate burrs.
【００１１】[0011]
【発明の実施の形態】上記の電流遮断機能を確実にする
ために、有機電解質電池の場合、樹脂膜としては、集電
体が用いられる電池の有機電解質の発火点よりも低い熱
変形温度を有するものが好ましい。発火点の測定法とし
ては、定速加熱法及び定温加熱法の２種類が知られてい
るが、現実に即した方を選択すると良い。どちらが現実
に即しているか不明の場合は、低い測定値を選択するほ
うが安全である。樹脂膜の材質例としては、ポリエチレ
ンテレフタレート（ＰＥＴ）、ポリプロピレン（ＰＰ）
等の熱可塑性樹脂が挙げられる。BEST MODE FOR CARRYING OUT THE INVENTION In order to ensure the above-mentioned current interruption function, in the case of an organic electrolyte battery, a resin film is formed with a heat deformation temperature lower than the ignition point of the organic electrolyte of a battery using a current collector. Are preferred. There are two known methods for measuring the ignition point: a constant speed heating method and a constant temperature heating method. If you are uncertain which is realistic, it is safer to choose a lower measurement. Examples of the material of the resin film include polyethylene terephthalate (PET) and polypropylene (PP).
And the like.
【００１２】樹脂膜の表面に形成される薄膜としては、
無電解メッキされたＮｉ、Ｃｕ又は蒸着されたＣｕ、Ａ
ｌなどの金属が好ましい。特に、正極の集電体の薄膜は
アルミニウムＡｌが好ましい。アルミニウムは耐食性に
優れ、正極が高電位となる充電時においても電解液中に
溶け出さないからである。一方、負極の集電体の薄膜と
して特に好ましいのは、銅Ｃｕ又はニッケルＮｉであ
る。銅は、蒸着により膜厚を極めて薄くし、集電体を軽
量にすることができる。また、銅は、３．７〜３．９Ｖ
vs. Ｌｉ／Ｌｉ+付近で溶けてしまうことが実験的に知
られている。従って、適正な放電電圧は３Ｖまでであっ
て、それ以下は過放電となる。これに対して、Ｎｉは
４．０〜４．２Ｖ vs. Ｌｉ／Ｌｉ+まで溶けないので、
０Ｖまで放電できる。As the thin film formed on the surface of the resin film,
Electroless plated Ni, Cu or evaporated Cu, A
Metals such as 1 are preferred. In particular, the thin film of the positive electrode current collector is preferably aluminum Al. This is because aluminum has excellent corrosion resistance and does not dissolve into the electrolyte even during charging when the positive electrode has a high potential. On the other hand, copper Cu or nickel Ni is particularly preferable as the thin film of the current collector of the negative electrode. Copper can be made extremely thin by vapor deposition to reduce the weight of the current collector. Moreover, copper is 3.7-3.9V.
It is experimentally known that it melts in the vicinity of vs. Li / Li + . Therefore, the proper discharge voltage is up to 3V, and below that is overdischarge. On the other hand, Ni does not melt up to 4.0 to 4.2 V vs. Li / Li + ,
Can discharge to 0V.
【００１３】層状体の層構成は、樹脂膜と薄膜との２層
でも又は薄膜、樹脂膜及び薄膜の順の３層でも良い。層
状にする手段としては、蒸着やメッキを含めて種々の公
知の手段が適用可能である。また、樹脂膜と薄膜とは全
面密着していても良いし、一部が密着していても良い。
電極全体の形状も渦巻き状に限定されない。The layer structure of the layered body may be two layers of a resin film and a thin film, or three layers of a thin film, a resin film and a thin film in this order. As a means for forming a layer, various known means including vapor deposition and plating can be applied. Moreover, the resin film and the thin film may be in close contact with each other over the entire surface, or a part thereof may be in close contact.
The shape of the entire electrode is not limited to a spiral shape.
【００１４】[0014]
−実施例１− 本発明の実施例を図面とともに説明する。図１は、実施
例の有機電解質電池の分解斜視図である。有機電解質電
池１は、正極板３、負極板４及びセパレータ５からなる
電極群２が非水系の電解液（図示省略）とともに電池ケ
ース６に収納された角形リチウム二次電池である。-Example 1-An example of the present invention will be described with reference to the drawings. FIG. 1 is an exploded perspective view of an organic electrolyte battery of an example. The organic electrolyte battery 1 is a prismatic lithium secondary battery in which an electrode group 2 including a positive electrode plate 3, a negative electrode plate 4, and a separator 5 is housed in a battery case 6 together with a non-aqueous electrolyte (not shown).
【００１５】正極板３は、集電体に活物質としてリチウ
ムコバルト複合酸化物部が保持されたものである。集電
体は、厚さ２０μｍのＰＥＴ膜の表面に真空蒸着により
厚さ２μｍのアルミニウム薄膜を密着させることによっ
て得られたものである。正極板３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
とによって製作された。The positive electrode plate 3 has a lithium cobalt composite oxide portion as an active material held on a current collector. The current collector was obtained by bringing a 2 μm thick aluminum thin film into close contact with the surface of a 20 μm thick PET film by vacuum deposition. The positive electrode plate 3 is 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 to prepare a paste, and then applying the paste to both surfaces of the current collector material , Made by drying.
【００１６】負極板４の集電体は、厚さ２０μｍのＰＥ
Ｔ膜の表面に真空蒸着により厚さ２μｍの銅薄膜を密着
させることによって得られた。負極板４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）８
６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 collector of the negative electrode plate 4 is made of PE having a thickness of 20 μm.
It was obtained by bringing a copper thin film having a thickness of 2 μm into close contact with the surface of the T film by vacuum vapor deposition. The negative electrode plate 4 has graphite 8 as a host material on both sides of its current collector.
6 parts and 14 parts of polyvinylidene fluoride as a binder were mixed to prepare a paste, which was applied and dried.
【００１７】セパレータ５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 5 is a polyethylene microporous film. Further, the electrolytic solution contains ethylene carbonate: diethyl carbonate = 1: 1 containing 1 mol / l of LiPF6.
(Volume ratio).
【００１８】各々の寸法は、正極板３が厚さ１８０μ
ｍ、幅２９ｍｍで、セパレータ５が厚さ２５μｍ、幅３
３ｍｍで、負極板４が厚さ２２０μｍ、幅３１ｍｍとな
っており、順に重ね合わせてポリエチレンの巻芯を中心
として、その周囲に長円渦状に巻いた後、電池ケース６
に収納されている。電池ケース６は、厚さ０．３ｍｍ、
内寸３３．１×４６．５×７．５ｍｍの鉄製本体の表面
に厚さ５μｍのニッケルメッキを施したものであり、側
部上部には電解液注入用の孔１２が設けられている。The respective dimensions are such that the positive electrode plate 3 has a thickness of 180 μm.
m, width 29 mm, separator 5 thickness 25 μm, width 3
3 mm, the negative electrode plate 4 has a thickness of 220 μm and a width of 31 mm. The negative electrode plate 4 is superposed in order and wound around the polyethylene core in an oval spiral shape.
It is stored in. The battery case 6 has a thickness of 0.3 mm,
The surface of an iron main body having an inner size of 33.1 × 46.5 × 7.5 mm is nickel-plated with a thickness of 5 μm, and a hole 12 for injecting an electrolyte is provided at an upper side portion.
【００１９】なお、正極板３は、安全弁８と正極端子１
０とを設けたケース蓋７の端子１０に正極リード１１を
介して接続されている。負極板４は、蓋７の下面に溶接
された負極リード（図示省略）と接続している。そし
て、この電池は、ケース６に蓋７をレーザー溶接して封
口される。The positive electrode plate 3 includes a safety valve 8 and a positive electrode terminal 1.
0 is connected via a positive electrode lead 11 to a terminal 10 of a case lid 7 provided with a zero. The negative electrode plate 4 is connected to a negative electrode lead (not shown) welded to the lower surface of the lid 7. Then, this battery is sealed by laser welding a lid 7 to the case 6.
【００２０】完成した電池の重さは、１６ｇであった。
この電池に１ＣｍＡで充電終止電圧４．１Ｖまで定電流
充電した後、電池１のケース６の側面より直径２．５ｍ
ｍの鉄釘を貫通させ、暫く様子を観察したが、電解液は
発火しなかった。The completed battery weighed 16 g.
This battery was charged at a constant current of 1 CmA to a final charge voltage of 4.1 V, and then 2.5 m in diameter from the side of the case 6 of the battery 1.
m was passed through an iron nail and observed for a while, but the electrolyte did not ignite.
【００２１】−実施例２− 負極板４の集電体として、真空蒸着により銅薄膜をＰＥ
Ｔ膜に密着させる代わりに無電解メッキにより厚さ８μ
ｍのニッケル薄膜をＰＥＴ膜に密着させた以外は、実施
例１と同一条件で電池を製造した。Example 2-As a collector of the negative electrode plate 4, a copper thin film PE was formed by vacuum deposition.
The thickness is 8μ by electroless plating instead of adhering to the T film.
A battery was manufactured under the same conditions as in Example 1, except that the nickel thin film of m was adhered to the PET film.
【００２２】完成した電池の重さは、１７ｇであった。
この電池に１ＣｍＡで充電終止電圧４．１Ｖまで定電流
充電した後、１ＣｍＡで放電したところ、放電終止電圧
０Ｖまで異常無く放電した。The completed battery weighed 17 g.
This battery was charged with a constant current of 1 CmA to a charge end voltage of 4.1 V and then discharged at 1 CmA, and it was discharged to a discharge end voltage of 0 V without any abnormality.
【００２３】−比較例− 正極板３の集電体として厚さ２０μｍのアルミニウム
箔、負極板４の集電体として厚さ２０μｍの銅箔を用い
た以外は、実施例１と同一条件で比較用電池を製造し
た。この電池の重さは、２０ｇであった。この電池１の
ケース６の側面より直径２．５ｍｍの鉄釘を貫通させた
ところ、３０秒後に発煙した。Comparative Example Comparison was made under the same conditions as in Example 1 except that a 20 μm thick aluminum foil was used as the collector of the positive electrode plate 3 and a 20 μm thick copper foil was used as the collector of the negative electrode plate 4. Batteries were manufactured. The weight of this battery was 20 g. When an iron nail having a diameter of 2.5 mm was passed through the side of the case 6 of the battery 1, smoke was emitted 30 seconds later.
【００２４】[0024]
【発明の効果】以上のように、本発明によれば、電池を
軽くしかも安全なものとすることができるので、携帯用
電子機器の部品として有益である。As described above, according to the present invention, the battery can be made light and safe, which is useful as a component of a portable electronic device.
【図１】実施例の有機電解質電池を示す分解斜視図であ
る。FIG. 1 is an exploded perspective view showing an organic electrolyte battery of an example.
１ 有機電解質電池 ２ 電極群 ３ 正極板 ４ 負極板 ５ セパレータ ６ 電池ケース ７ ケース蓋 1 organic electrolyte battery 2 electrode group 3 positive electrode plate 4 negative electrode plate 5 separator 6 battery case 7 case lid
Claims (10)
を保持する集電体において、 樹脂膜と、電子伝導性の薄膜との層状体であることを特
徴とする電池用極板の集電体。1. A current collector for holding an active material of an electrode or a host material in a battery, which is a layered body of a resin film and an electronically conductive thin film. Current collector.
等の有機電解質電池である請求項１に記載の電池用極板
の集電体。2. The current collector for a battery electrode plate according to claim 1, wherein the battery is an organic electrolyte battery such as an organic electrolyte battery or a polymer electrolyte battery.
低い熱変形温度を有する請求項２に記載の電池用極板の
集電体。3. The current collector for a battery electrode plate according to claim 2, wherein the resin film has a heat distortion temperature lower than the ignition point of the organic electrolyte.
（ＰＥＴ）、ポリプロピレン（ＰＰ）等の熱可塑性樹脂
からなる請求項２に記載の電池用極板の集電体。4. The current collector for a battery electrode plate according to claim 2, wherein the resin film is made of a thermoplastic resin such as polyethylene terephthalate (PET) or polypropylene (PP).
属からなる請求項１〜４のいずれかに記載の電池用極板
の集電体。5. The current collector for a battery electrode plate according to claim 1, wherein the thin film is made of electroless plated or vapor-deposited metal.
薄膜、樹脂膜及び薄膜の順の３層である請求項１〜５の
いずれかに記載の電池用極板の集電体。6. The current collector for a battery electrode plate according to claim 1, wherein the layered body has two layers of a resin film and a thin film or three layers of a thin film, a resin film and a thin film in this order. body.
正負の電極に用いた電池。7. A battery using the current collector according to claim 1 for positive and negative electrodes.
ｌである請求項７に記載の電池。8. The thin film of the current collector of the positive electrode is aluminum A
The battery according to claim 7, wherein the battery is 1.
求項７又は８に記載の電池。9. The battery according to claim 7, wherein the thin film of the current collector of the negative electrode is copper Cu.
である請求項７又は８に記載の電池。10. The thin film of the current collector of the negative electrode is nickel Ni.
The battery according to claim 7, which is
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8114107A JPH09283149A (en) | 1996-04-10 | 1996-04-10 | Collector for battery plate and battery using this collector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8114107A JPH09283149A (en) | 1996-04-10 | 1996-04-10 | Collector for battery plate and battery using this collector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH09283149A true JPH09283149A (en) | 1997-10-31 |
Family
ID=14629306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8114107A Pending JPH09283149A (en) | 1996-04-10 | 1996-04-10 | Collector for battery plate and battery using this collector |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH09283149A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2000042669A1 (en) * | 1999-01-14 | 2000-07-20 | Fujitsu Limited | Lithium secondary cell |
| JP2001085016A (en) * | 1999-09-09 | 2001-03-30 | Sony Corp | Non-aqueous electrolyte battery |
| JP2005108835A (en) * | 2003-09-26 | 2005-04-21 | Samsung Sdi Co Ltd | Rechargeable lithium-ion secondary battery |
| KR100585584B1 (en) * | 1999-04-01 | 2006-06-07 | 삼성테크윈 주식회사 | method and apparatus for manufacturing electric collector of battery |
| WO2009157263A1 (en) * | 2008-06-23 | 2009-12-30 | シャープ株式会社 | Lithium ion secondary battery |
| JP2010282789A (en) * | 2009-06-03 | 2010-12-16 | Sharp Corp | Nonaqueous electrolyte secondary battery |
| WO2012127561A1 (en) * | 2011-03-18 | 2012-09-27 | 株式会社日立製作所 | Non-aqueous electrolyte battery |
| CN103081205A (en) * | 2010-08-27 | 2013-05-01 | 株式会社Lg化学 | Cable type rechargeable battery |
| US9548497B2 (en) | 2011-06-10 | 2017-01-17 | Eaglepicher Technologies, Llc | Layered composite current collector with plurality of openings, methods of manufacture thereof, and articles including the same |
| US10700339B2 (en) | 2017-09-09 | 2020-06-30 | Sateria Battery Innovation Group, Inc. | Method of manufacture of an energy storage device having an internal fuse |
| US10763481B2 (en) | 2017-09-09 | 2020-09-01 | Soteria Battery Innovation Group Inc. | Lithium storage device with improved safety architecture |
| US10854868B2 (en) | 2017-09-09 | 2020-12-01 | Soteria Battery Innovation Group, Inc. | Lithium energy storage device with internal fuse |
| JP2020198290A (en) * | 2019-05-31 | 2020-12-10 | 寧徳時代新能源科技股▲分▼有限公司Ｃｏｎｔｅｍｐｏｒａｒｙ Ａｍｐｅｒｅｘ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｉｍｉｔｅｄ | Lithium ion secondary battery, cell and negative electrode sheet |
| US10957956B2 (en) | 2017-09-09 | 2021-03-23 | Soteria Battery Innovation Group, Inc. | Energy storage device having a current collector with inherent current limitations |
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| US11646424B2 (en) | 2019-05-31 | 2023-05-09 | Contemporary Amperex Technology Co., Limited | Lithium-ion secondary battery |
-
1996
- 1996-04-10 JP JP8114107A patent/JPH09283149A/en active Pending
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| WO2000042669A1 (en) * | 1999-01-14 | 2000-07-20 | Fujitsu Limited | Lithium secondary cell |
| JP3696790B2 (en) * | 1999-01-14 | 2005-09-21 | 富士通株式会社 | Lithium secondary battery |
| KR100585584B1 (en) * | 1999-04-01 | 2006-06-07 | 삼성테크윈 주식회사 | method and apparatus for manufacturing electric collector of battery |
| JP2001085016A (en) * | 1999-09-09 | 2001-03-30 | Sony Corp | Non-aqueous electrolyte battery |
| JP2005108835A (en) * | 2003-09-26 | 2005-04-21 | Samsung Sdi Co Ltd | Rechargeable lithium-ion secondary battery |
| US7560192B2 (en) | 2003-09-26 | 2009-07-14 | Samsung Sdi Co., Ltd. | Rechargeable lithium ion battery |
| US7736809B2 (en) | 2003-09-26 | 2010-06-15 | Samsung Sdi Co., Ltd. | Rechargeable lithium ion battery |
| WO2009157263A1 (en) * | 2008-06-23 | 2009-12-30 | シャープ株式会社 | Lithium ion secondary battery |
| JPWO2009157263A1 (en) * | 2008-06-23 | 2011-12-08 | シャープ株式会社 | Lithium ion secondary battery |
| JP5371979B2 (en) * | 2008-06-23 | 2013-12-18 | シャープ株式会社 | Lithium ion secondary battery |
| JP2010282789A (en) * | 2009-06-03 | 2010-12-16 | Sharp Corp | Nonaqueous electrolyte secondary battery |
| JP2013538427A (en) * | 2010-08-27 | 2013-10-10 | エルジー・ケム・リミテッド | Cable type secondary battery |
| CN103081205A (en) * | 2010-08-27 | 2013-05-01 | 株式会社Lg化学 | Cable type rechargeable battery |
| US8748032B2 (en) | 2010-08-27 | 2014-06-10 | Lg Chem, Ltd. | Cable-type secondary battery |
| WO2012127561A1 (en) * | 2011-03-18 | 2012-09-27 | 株式会社日立製作所 | Non-aqueous electrolyte battery |
| US9548497B2 (en) | 2011-06-10 | 2017-01-17 | Eaglepicher Technologies, Llc | Layered composite current collector with plurality of openings, methods of manufacture thereof, and articles including the same |
| US10854868B2 (en) | 2017-09-09 | 2020-12-01 | Soteria Battery Innovation Group, Inc. | Lithium energy storage device with internal fuse |
| US10763481B2 (en) | 2017-09-09 | 2020-09-01 | Soteria Battery Innovation Group Inc. | Lithium storage device with improved safety architecture |
| US10700339B2 (en) | 2017-09-09 | 2020-06-30 | Sateria Battery Innovation Group, Inc. | Method of manufacture of an energy storage device having an internal fuse |
| US10957956B2 (en) | 2017-09-09 | 2021-03-23 | Soteria Battery Innovation Group, Inc. | Energy storage device having a current collector with inherent current limitations |
| US11139510B2 (en) | 2017-09-09 | 2021-10-05 | Soteria Battery Innovation Group, Inc. | Battery connections and metallized film components in energy storage devices having internal fuses |
| US11158860B2 (en) | 2017-09-09 | 2021-10-26 | Soteria Battery Innovation Group, Inc. | Battery connections and metallized film components in energy storage devices having internal fuses |
| US11482711B2 (en) | 2017-09-09 | 2022-10-25 | Soteria Battery Innovation Group, Inc. | Tabless cell utilizing metallized film current collectors |
| JP2020198290A (en) * | 2019-05-31 | 2020-12-10 | 寧徳時代新能源科技股▲分▼有限公司Ｃｏｎｔｅｍｐｏｒａｒｙ Ａｍｐｅｒｅｘ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．， Ｌｉｍｉｔｅｄ | Lithium ion secondary battery, cell and negative electrode sheet |
| US11611081B2 (en) | 2019-05-31 | 2023-03-21 | Contemporary Amperex Technology Co., Limited | Lithium ion secondary battery, battery core, negative electrode plate, and apparatus |
| US11646424B2 (en) | 2019-05-31 | 2023-05-09 | Contemporary Amperex Technology Co., Limited | Lithium-ion secondary battery |
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