JPH0282447A - Manufacture of lithium secondary battery - Google Patents
Manufacture of lithium secondary batteryInfo
- Publication number
- JPH0282447A JPH0282447A JP63233013A JP23301388A JPH0282447A JP H0282447 A JPH0282447 A JP H0282447A JP 63233013 A JP63233013 A JP 63233013A JP 23301388 A JP23301388 A JP 23301388A JP H0282447 A JPH0282447 A JP H0282447A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- negative electrode
- seal plate
- sealing plate
- opening seal
- 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
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 229910052744 lithium Inorganic materials 0.000 title claims abstract description 60
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- 238000007789 sealing Methods 0.000 claims description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052799 carbon Inorganic materials 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 6
- ZKATWMILCYLAPD-UHFFFAOYSA-N niobium pentoxide Inorganic materials O=[Nb](=O)O[Nb](=O)=O ZKATWMILCYLAPD-UHFFFAOYSA-N 0.000 claims description 6
- URLJKFSTXLNXLG-UHFFFAOYSA-N niobium(5+);oxygen(2-) Chemical group [O-2].[O-2].[O-2].[O-2].[O-2].[Nb+5].[Nb+5] URLJKFSTXLNXLG-UHFFFAOYSA-N 0.000 claims description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims description 4
- 229910044991 metal oxide Inorganic materials 0.000 claims description 4
- 150000004706 metal oxides Chemical class 0.000 claims description 4
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 4
- 239000003792 electrolyte Substances 0.000 abstract description 4
- 230000002950 deficient Effects 0.000 abstract description 3
- 229910052751 metal Inorganic materials 0.000 abstract description 3
- 239000002184 metal Substances 0.000 abstract description 3
- WHXSMMKQMYFTQS-IGMARMGPSA-N lithium-7 atom Chemical compound [7Li] WHXSMMKQMYFTQS-IGMARMGPSA-N 0.000 abstract 4
- 239000000654 additive Substances 0.000 abstract 2
- 230000000996 additive effect Effects 0.000 abstract 2
- 239000000203 mixture Substances 0.000 description 10
- GNTDGMZSJNCJKK-UHFFFAOYSA-N divanadium pentaoxide Chemical compound O=[V](=O)O[V](=O)=O GNTDGMZSJNCJKK-UHFFFAOYSA-N 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000004743 Polypropylene Substances 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000013078 crystal Substances 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 210000001787 dendrite Anatomy 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000002534 ethynyl group Chemical group [H]C#C* 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- WCVOGSZTONGSQY-UHFFFAOYSA-N 2,4,6-trichloroanisole Chemical class COC1=C(Cl)C=C(Cl)C=C1Cl WCVOGSZTONGSQY-UHFFFAOYSA-N 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 239000008151 electrolyte solution Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel 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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
-
- 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
【発明の詳細な説明】
産業上の利用分野
本発明はリチウム二次電池の製造法に関するものである
。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a lithium secondary battery.
従来の技術
近年のエレクトロニクス分野における技術の急速な発展
により、電子機器の小型化が進み、それら機器の電源と
して、小型軽量で高エネルギー密度を有する電池の需要
が高まっている。そして、その電池として、負極にリチ
ウムを用いるリチウム二次電池が注目を集め世界的に研
究が行なわれている。しかしながら充放電の繰り返しに
より、リチウム負極表面にリチウムのデンドライトと呼
ばれる樹枝状結晶が成長して電池の内部短絡を弓き起こ
し、充放電サイクル寿命が著しく損なわれる。BACKGROUND OF THE INVENTION With the rapid development of technology in the electronics field in recent years, electronic devices have become smaller and smaller, and there is an increasing demand for small, lightweight, and high energy density batteries as power sources for these devices. As a battery for this purpose, lithium secondary batteries that use lithium for the negative electrode are attracting attention and research is being conducted worldwide. However, repeated charging and discharging causes dendritic crystals called lithium dendrites to grow on the surface of the lithium negative electrode, causing internal short circuits in the battery and significantly reducing the charge-discharge cycle life.
この解決の一手段として五酸化ニオブや酸化チタンなど
の金属酸化物を負極に用いたリチウム二次電池が提案さ
れている。最近の研究では五酸化ニオブや酸化チタンに
対するリチウムイオンのドブ・アンドープがスムーズに
行なわれ易く、また充放電の繰り返しによるデンドライ
トの発生もないため、非常に長期にわたる充放電サイク
ル特性に優れていることがわかった。As a means of solving this problem, a lithium secondary battery using a metal oxide such as niobium pentoxide or titanium oxide as a negative electrode has been proposed. Recent research shows that niobium pentoxide and titanium oxide are easily doped and undoped with lithium ions, and there is no dendrite formation due to repeated charging and discharging, resulting in excellent long-term charge-discharge cycle characteristics. I understand.
ただ、この場合、あらかじめ負極にリチウムを充填せね
ばならないが、一般的には、負極とリチウムを電解液中
で接触するだけで負極にリチウムがドーピングする性質
を有しているので、封口板内で負極酸化物の正極に対向
する面にリチウム箔を圧着し、電解液を注入し、電池内
でリチウムをドーピングさせていた。However, in this case, the negative electrode must be filled with lithium in advance, but in general, the negative electrode has the property of being doped with lithium just by contacting the negative electrode with lithium in an electrolyte, so it is necessary to fill the sealing plate with lithium. Lithium foil was pressed onto the side of the negative electrode oxide facing the positive electrode, and electrolyte was injected to dope the battery with lithium.
発明が解決しようとする課題
上記のようなリチウムを負極合剤上に圧着する方法での
問題点としては、負極合剤が非常に柔かいため、リチウ
ムが剥離しやすい。そのため、電池を構成していく過程
において、負極合剤からはがれてしまい、リチウムが合
剤中に完全にドープせず、遊離した状態で残存する場合
が多かった。Problems to be Solved by the Invention A problem with the above-described method of press-bonding lithium onto a negative electrode mixture is that the negative electrode mixture is very soft, so that the lithium easily peels off. Therefore, in the process of constructing a battery, lithium often peels off from the negative electrode mixture, and lithium is not completely doped into the mixture and remains in a free state.
そのため、電気容量を十分取シ出すことができなかった
り、極端な場合、遊離リチウムによって、セパレータの
脇を経由して内部ショートを引き起こしたシすることも
あった。したがって信頼性に極めて乏しい方法であった
。As a result, sufficient electrical capacity could not be extracted, or in extreme cases, free lithium could pass through the side of the separator and cause an internal short circuit. Therefore, this method was extremely unreliable.
本発明は、上記の問題点を解消し、信頼性に優れたリチ
ウム二次電池を提供することを目的としたものである。The present invention aims to solve the above problems and provide a lithium secondary battery with excellent reliability.
課題を解決するための手段
この問題を解決するために、本発明は、封口板と負極と
の間に金属リチウムを介在させることによシ、上記の問
題が解決されることを見い出した。Means for Solving the Problems In order to solve this problem, the present invention has discovered that the above problem can be solved by interposing metallic lithium between the sealing plate and the negative electrode.
さらに、種々検討したところ、少なくともリチウムを圧
着する封口板の内面部にあらがじめカーボン塗布膜を形
成しておくことにより、より強固にリチウムが封目板に
密着し、良好であることがわかった。Furthermore, after various studies, we found that at least by forming a carbon coating film on the inner surface of the sealing plate to which the lithium is pressed, the lithium will adhere more firmly to the sealing plate, resulting in better results. Understood.
作 用
封口板は金属よりなるので材質的にリチウムは酸化物に
対してよりもはるかに、密着強度が大きい。そこで、封
口板にあらかじめリチウムを圧着しておき、その後負極
合剤を載置し、電解液を注入して、電池を構成したあと
では、丁度、負極合剤と封口板との間にリチウムがサン
ドイッチ状に挟持されるので、リチウムが剥離すること
なく、速かに、酸化物中にドープすることができる。Since the sealing plate is made of metal, lithium has a much greater adhesion strength than oxide materials. Therefore, after crimping lithium onto the sealing plate in advance, placing the negative electrode mixture, and injecting the electrolyte to form the battery, lithium is placed between the negative electrode mixture and the sealing plate. Since lithium is sandwiched, it can be quickly doped into the oxide without peeling off the lithium.
さらに、確実な方法として封口板内面にカーボン塗布膜
を形成しておくと、カーボン塗布膜の微細な凹凸にリチ
ウムが食い込み、より強固に密着される。また、リチウ
ムが負極にドーピングすると負極が若干膨張するが、そ
のため封目板側の負極合剤が封口板内面に強く圧接する
ようになり、このとき、カーボン塗布膜が存在するため
、封口板との電気的接触がより良好とな９、この点から
も利点がある。Furthermore, as a reliable method, if a carbon coating film is formed on the inner surface of the sealing plate, the lithium will penetrate into the fine irregularities of the carbon coating film and will be more firmly adhered. In addition, when lithium is doped into the negative electrode, the negative electrode expands slightly, which causes the negative electrode mixture on the sealing plate side to come into strong pressure contact with the inner surface of the sealing plate. There is also an advantage in that electrical contact is better9.
これらのことより、本発明では単に遊離リチウムを防止
するだけでなく、電気的な密着度にも優れた効果を期待
できるものである。１
実施例
以下、本発明の実施例を図を参照して説明する。From these facts, the present invention not only prevents free lithium, but also can be expected to have an excellent effect on electrical adhesion. 1 Examples Examples of the present invention will be described below with reference to the drawings.
第１図は正極に五酸化バナジウム、負極に五酸化ニオブ
を用いたリチウム二次電池を示す。FIG. 1 shows a lithium secondary battery using vanadium pentoxide for the positive electrode and niobium pentoxide for the negative electrode.
図中、１は厚さ０．２５ｆｆのステンレス鋼板を打ち抜
き加工したケース、２は同材料を同様に加工した封口板
、３はケース１と封口板２を絶縁するポリプロピレン製
ガスケ乙ト、４は正極で五酸化バナジウム８０重量部と
導電材であるアセチレンプラック１０重量部、及び結着
剤であるポリ４フフ化工チレン１ｏ重量部を混練した後
、外径１５ＭＮ、厚み０．８ｚｇに加圧成形したもの、
５は負極で五酸化ニオブ８０重量部、アセチレンプラッ
ク１０重量部、及びポリ４フッ化エチレン１，０重量部
を混練した後、外径１５ｍ、厚み０．６絹に加圧成した
ものである。６はセパレータで厚み０．３肩肩のポリプ
ロピレン製不織布である。７は外径１０ｇｍ厚み０．１
ｆｌのリチウムで５の負極と２の封口板の間にリチウ
ムが介在するように封口板にリチウムを圧着した、。In the figure, 1 is a case made by punching a stainless steel plate with a thickness of 0.25 ff, 2 is a sealing plate made of the same material and processed in the same way, 3 is a polypropylene gasket that insulates the case 1 and the sealing plate 2, and 4 is a gasket made of polypropylene. In the positive electrode, 80 parts by weight of vanadium pentoxide, 10 parts by weight of acetylene plaque as a conductive material, and 10 parts by weight of poly-4fufu modified tyrene as a binder were kneaded, and then pressure molded to an outer diameter of 15 MN and a thickness of 0.8 zg. what you did,
No. 5 is a negative electrode made by kneading 80 parts by weight of niobium pentoxide, 10 parts by weight of acetylene plaque, and 1.0 parts by weight of polytetrafluoroethylene, and then pressurizing it into silk with an outer diameter of 15 m and a thickness of 0.6 mm. . 6 is a separator made of polypropylene nonwoven fabric with a thickness of 0.3 mm. 7 has an outer diameter of 10g and a thickness of 0.1
Lithium fl was pressed onto the sealing plate so that lithium was interposed between the negative electrode No. 5 and the sealing plate No. 2.
電解液には炭酸プロピレンと１．２−ジメトキシエタン
と等容積混合溶媒に過塩素酸リチウムを１モル／ｅの割
合で溶解したものを用いた。The electrolytic solution used was one in which lithium perchlorate was dissolved at a ratio of 1 mol/e in a mixed solvent of equal volumes of propylene carbonate and 1,2-dimethoxyethane.
この本発明の電池をＡとした。また、負極の正極に対向
する面にリチウムを圧着した従来の電池をＢとした。This battery of the present invention was designated as A. In addition, B was a conventional battery in which lithium was crimped onto the surface of the negative electrode facing the positive electrode.
尚、いずれの電池の大きさも直径２０ｙｒｙｔ、厚さ２
ｕで、容量は２０ ｍＡｈである。The size of each battery is 20 yryt in diameter and 2 in thickness.
u, the capacity is 20 mAh.
これら電池を２Ｑ℃において、１ｍＡの定電流で放電し
た時の１■までの放電電気容量を測定した。その結果を
表１に示す。、
表１
次に、これら電池の組立直後の電圧不良率を表２に示す
。組立直後の電圧は正常晶は１．７〜２．１Ｖであるが
、とくに顕著に電圧低下を示すもので、１ｖ以下になっ
たものを電圧不良品とした。When these batteries were discharged at a constant current of 1 mA at 2Q°C, the discharge capacity up to 1 inch was measured. The results are shown in Table 1. , Table 1 Next, Table 2 shows the voltage failure rate of these batteries immediately after assembly. The voltage immediately after assembly was 1.7 to 2.1 V for normal crystals, but those that showed a particularly noticeable voltage drop, and those whose voltage was 1 V or less were classified as voltage defective products.
表１よシ封ロ板にリチウムを圧着した本発明の電ａＡの
方が負極合剤にリチウムを圧着した従来の電池Ｂに比べ
、放電電気容量は大きく、またバラツキも小さい。これ
は、電池解析を行なった結果、封口板にリチウムを圧着
した’Ｆ［ｆ池はリチウムが完全に負極にドーピングし
ているのに対して、負極合剤にリチウムを圧着した電池
はリチウムが負極合剤から剥離し、負極に完全にドープ
せず、遊離して残存していることが観察された。As shown in Table 1, the battery aA of the present invention in which lithium was crimped to the sealing plate had a larger discharge capacity and less variation than the conventional battery B in which lithium was crimped to the negative electrode mixture. As a result of battery analysis, we found that in 'F [f batteries, which have lithium bonded to the sealing plate, the negative electrode is completely doped with lithium, whereas in batteries where lithium is bonded to the negative electrode mix, lithium is completely doped. It was observed that it was peeled off from the negative electrode mixture and remained free without being completely doped into the negative electrode.
また、表２より、本発明の電池Ａは０７１００個と電圧
不良電池はないが、従来の７Ｅ池Ｂば３／１００個も電
圧不良電池が生じている。そこで、この電圧不良品を分
解してみたところ、リチウムがセパレータの脇を経由し
て内部ショートを引き起こしていた。Further, from Table 2, battery A of the present invention has 07,100 batteries with voltage defects, while conventional 7E battery B has 3/100 batteries with voltage defects. When we disassembled this voltage-defective product, we discovered that lithium had passed through the side of the separator and caused an internal short circuit.
次に封口板内面にあらかじめカーボン塗布膜を形成して
おき、負極と封口板の１−ｉ４」にリチウムを介在させ
るようにカーボン塗布膜にリチウムを圧着した電池をＣ
とした。カーボン塗布膜によりリチウムは、さらに強固
に圧着できた。また、電池組立直後の電池の内部抵抗を
本発明の電池Ａと比較して示す。Next, a carbon coating film is formed on the inner surface of the sealing plate in advance, and the battery is bonded with lithium on the carbon coating film so that lithium is interposed between the negative electrode and the sealing plate.
And so. The carbon coating film allowed lithium to be bonded more firmly. Also, the internal resistance of the battery immediately after battery assembly is shown in comparison with Battery A of the present invention.
表３
表３の結果より、封口板にあらかじめカーボン塗料を形
成しておくことにより、電気的接触が良好になり、内部
抵抗も若干１氏くなった。Table 3 From the results in Table 3, by forming the carbon paint on the sealing plate in advance, the electrical contact was improved and the internal resistance was slightly lowered by 1°C.
また、実施例においては、負極として五酸化ニオブを用
いたが、酸化チタンを用いた場合も同様の結果が得られ
た。Further, in the examples, niobium pentoxide was used as the negative electrode, but similar results were obtained when titanium oxide was used.
発明の効果
以上の説明から明らかなように、封口板と負極の間にリ
チウムを介在させるようにリチウムを封口板に圧着する
ことによシ、電気容量を十分取り出すことができ、電圧
不良率も区域でき、信頼性に優れたリチウム二次電池を
得ることができた。Effects of the Invention As is clear from the above explanation, by crimping lithium to the sealing plate so that lithium is interposed between the sealing plate and the negative electrode, a sufficient electrical capacity can be extracted and the voltage failure rate can be reduced. We were able to obtain a lithium secondary battery with excellent reliability.
また、カーボン塗布膜をあらかじめ封口板に形成してお
くことにより、さらに信頼性を高めることができた。Furthermore, by forming the carbon coating film on the sealing plate in advance, reliability could be further improved.
第１図は本発明の実施例における１１池の縦断面図であ
る。
１・・・・・・ケース、２・・・・・・封口板、３・・
・・・・ガスケット、４・・・・・・正極、５・・・・
・・負極、６・・・・・・セパレータ、７・・・・・・
リチウム。FIG. 1 is a longitudinal sectional view of pond No. 11 in an embodiment of the present invention. 1... Case, 2... Sealing plate, 3...
...Gasket, 4...Positive electrode, 5...
...Negative electrode, 6... Separator, 7...
lithium.
Claims (3)
って、負極と負極集電体である封口板との間に金属リチ
ウムを介在させることを特徴とするリチウム二次電池の
製造法。(1) A method for producing a lithium secondary battery, which is a lithium secondary battery using a metal oxide for the negative electrode, characterized in that metallic lithium is interposed between the negative electrode and a sealing plate that is a negative electrode current collector.
あることを特徴とする請求項１記載のリチウム二次電池
の製造法。(2) The method for manufacturing a lithium secondary battery according to claim 1, wherein the metal oxide is niobium pentoxide or titanium oxide.
金属リチウムを圧着し、このリチウム上に負極である金
属酸化物を密着させて電池構成時リチウムと酸化物を反
応させてリチウム負極とすることを特徴とした請求項１
記載のリチウム二次電池の製造法。(3) A carbon coating film is formed on the inner surface of the sealing plate, metallic lithium is pressure-bonded on top of this, and a metal oxide, which is a negative electrode, is closely adhered to the lithium, and when forming a battery, the lithium and oxide are reacted to form a lithium negative electrode. Claim 1 characterized in that
The method for producing the described lithium secondary battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63233013A JP2808610B2 (en) | 1988-09-16 | 1988-09-16 | Manufacturing method of lithium secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63233013A JP2808610B2 (en) | 1988-09-16 | 1988-09-16 | Manufacturing method of lithium secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0282447A true JPH0282447A (en) | 1990-03-23 |
| JP2808610B2 JP2808610B2 (en) | 1998-10-08 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63233013A Expired - Fee Related JP2808610B2 (en) | 1988-09-16 | 1988-09-16 | Manufacturing method of lithium secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2808610B2 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0715366A1 (en) * | 1994-12-01 | 1996-06-05 | Canon Kabushiki Kaisha | Rechargeable lithium battery having an anode coated by a film containing a specific metal oxide material, process for the production of said anode, and process for the production of said rechargeable lithium battery |
| US6410188B1 (en) | 1998-11-30 | 2002-06-25 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary cell |
| JP2003077544A (en) * | 2001-09-06 | 2003-03-14 | Yuasa Corp | Secondary battery |
| JP2008198593A (en) * | 2007-01-16 | 2008-08-28 | Sanyo Electric Co Ltd | Nonaqueous electrolyte secondary battery and its manufacturing method |
-
1988
- 1988-09-16 JP JP63233013A patent/JP2808610B2/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0715366A1 (en) * | 1994-12-01 | 1996-06-05 | Canon Kabushiki Kaisha | Rechargeable lithium battery having an anode coated by a film containing a specific metal oxide material, process for the production of said anode, and process for the production of said rechargeable lithium battery |
| US6063142A (en) * | 1994-12-01 | 2000-05-16 | Canon Kabushiki Kaisha | Process for producing a rechargeable lithium battery having an improved anode coated by a film containing a specific metal oxide material |
| US6410188B1 (en) | 1998-11-30 | 2002-06-25 | Matsushita Electric Industrial Co., Ltd. | Non-aqueous electrolyte secondary cell |
| JP2003077544A (en) * | 2001-09-06 | 2003-03-14 | Yuasa Corp | Secondary battery |
| JP4496688B2 (en) * | 2001-09-06 | 2010-07-07 | 株式会社ジーエス・ユアサコーポレーション | Secondary battery |
| JP2008198593A (en) * | 2007-01-16 | 2008-08-28 | Sanyo Electric Co Ltd | Nonaqueous electrolyte secondary battery and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2808610B2 (en) | 1998-10-08 |
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