JPH0773045B2 - Non-aqueous electrolyte secondary battery - Google Patents
Non-aqueous electrolyte secondary batteryInfo
- Publication number
- JPH0773045B2 JPH0773045B2 JP60159725A JP15972585A JPH0773045B2 JP H0773045 B2 JPH0773045 B2 JP H0773045B2 JP 60159725 A JP60159725 A JP 60159725A JP 15972585 A JP15972585 A JP 15972585A JP H0773045 B2 JPH0773045 B2 JP H0773045B2
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- indium
- lead
- negative electrode
- battery
- 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.)
- Expired - Lifetime
Links
Classifications
-
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/38—Selection of substances as active materials, active masses, active liquids of elements or alloys
- H01M4/40—Alloys based on alkali metals
-
- 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
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は非水電解質二次電池に関する。さらに詳しく
は、充放電特性が良好な非水電解質二次電池に関する。TECHNICAL FIELD The present invention relates to a non-aqueous electrolyte secondary battery. More specifically, it relates to a non-aqueous electrolyte secondary battery having good charge / discharge characteristics.
従来、リチウムを負極活物質とする非水電解質二次電池
では、金属リチウムが単体で負極に用いられていたが、
充電時の析出リチウムが非常に活性で電解質と反応した
り、リチウムがデンドライト状（樹枝状）に析出し、充
放電の繰り返しによって上記デンドライトが成長し、こ
のデンドライト状に成長したリチウムが正極、負極間を
隔離するセパレータを貫通し、正極に接触して内部短絡
を生じ、充放電特性が低下するという問題があった。Conventionally, in a non-aqueous electrolyte secondary battery using lithium as a negative electrode active material, metallic lithium was used alone as a negative electrode.
Lithium deposited during charging is very active and reacts with the electrolyte, or lithium is deposited in a dendrite form (dendritic form), the above dendrite grows by repeated charging and discharging, and the lithium grown in this dendrite form the positive electrode and the negative electrode. There is a problem that the separator that penetrates the space is penetrated and comes into contact with the positive electrode to cause an internal short circuit, resulting in deterioration of charge / discharge characteristics.
そのため、リチウム−アルミニウム合金を負極に用いる
ことによって、充放電特性を改良することが提案されて
いる（たとえば米国特許第4,002,492号明細書）。Therefore, it has been proposed to improve charge / discharge characteristics by using a lithium-aluminum alloy for the negative electrode (for example, US Pat. No. 4,002,492).
上記リチウム−アルミニウム合金は、充電時にリチウム
とアルミニウムとの電気化学的合金化反応により、リチ
ウムをアルミニウム中に拡散させることによって析出リ
チウムの電解質との反応やリチウムのデンドライト成長
を抑制しようとするものであるが、充電時におけるリチ
ウムとアルミニウムとの電気化学的合金化反応が充分に
速いとはいえず、必ずしも満足し得るほどの充放電特性
は得られなかった。The lithium-aluminum alloy is intended to suppress the reaction of the precipitated lithium with the electrolyte and the dendrite growth of lithium by diffusing lithium into aluminum by an electrochemical alloying reaction between lithium and aluminum during charging. However, the electrochemical alloying reaction between lithium and aluminum during charging cannot be said to be sufficiently fast, and satisfactory charge / discharge characteristics were not always obtained.
そのため、本発明者らは、リチウムとインジウムとを合
金化して負極に用いることにより、上記リチウム−アル
ミニウム合金を用いる場合よりも充放電特性の良好な電
池が得られることを見出し、これについて既に特許出願
をした（特願昭59−112260号）。Therefore, the present inventors have found that by alloying lithium and indium and using them for the negative electrode, a battery having better charge / discharge characteristics can be obtained than when using the above lithium-aluminum alloy. Filed an application (Japanese Patent Application No. 59-112260).
本発明者らは、上記知見に基づいて、さらに研究を重ね
た結果、リチウムとの合金化に際してインジウムを単独
で用いるよりも、インジウムを主成分とし、これに鉛を
３〜35原子％になるように添加したインジウムと鉛との
合金を用いる方が充放電特性の優れた非水電解質二次電
池が得られることを見出し、本発明を完成するにいたっ
た。As a result of further research based on the above findings, the present inventors have found that indium is the main component and lead is contained in an amount of 3 to 35 atomic% rather than indium alone when alloying with lithium. The inventors have found that a non-aqueous electrolyte secondary battery having excellent charge / discharge characteristics can be obtained by using an alloy of indium and lead thus added, and have completed the present invention.
すなわち、リチウムを上記インジウム−鉛合金で合金化
して負極に用いると、充電時のリチウムとインジウムお
よび鉛との電気化学的合金化反応速度が、リチウムとア
ルミニウムとの電気化学的合金化反応速度に対してはも
とより、リチウムとインジウムとの電気化学的合金化速
度よりも速くなり、析出リチウムの電解質との反応やデ
ントライト成長がリチウム−アルミニウム合金やリチウ
ム−インジウム合金の場合よりもより一層防止されるよ
うになり、それによって充放電特性が、リチウム−アル
ミニウム合金の場合に比べてはもとより、リチウム−イ
ンジウム合金に比べてもさらに向上するのである。That is, when lithium is alloyed with the above indium-lead alloy and used for the negative electrode, the electrochemical alloying reaction rate of lithium with indium and lead during charging becomes the electrochemical alloying reaction rate of lithium with aluminum. On the other hand, it becomes faster than the electrochemical alloying rate of lithium and indium, and the reaction of the deposited lithium with the electrolyte and the dendrite growth are prevented more than in the case of the lithium-aluminum alloy and the lithium-indium alloy. As a result, the charging / discharging characteristics are further improved not only in the case of the lithium-aluminum alloy but also in the case of the lithium-indium alloy.
インジウムと鉛との合金化は、通常、それらの金属粉末
を混合して加熱溶融する、いわゆる冶金学的合金化によ
って行われるが、このインジウム−鉛合金とリチウムと
の合金化反応は、冶金学的合金化はもとより、電解質の
存在下での電気化学的合金化によっても行うことができ
る。また、この電気化学的合金化は電池内で行うことも
できるし、また電池外で行ってもよい。The alloying of indium and lead is usually carried out by so-called metallurgical alloying, in which those metal powders are mixed and heated and melted, but the alloying reaction between this indium-lead alloy and lithium is carried out by metallurgy. In addition to dynamic alloying, electrochemical alloying in the presence of an electrolyte can be used. Further, this electrochemical alloying may be performed inside the battery or outside the battery.
本発明において、上記インジウム−鉛合金の鉛含有量を
３〜35原子にするのは、鉛含有量が３原子％より少ない
場合は鉛の添加に基づくリチウムとの高い電気化学的合
金化反応性が低下し、鉛含有量が35原子％より多い場合
はリチウム−インジウム合金の特徴である負極中への高
い拡散速度が損なわれて、いずれの場合も、充放電特性
が低下し、良好な充放電特性が得られないからである。In the present invention, the lead content of the above indium-lead alloy is set to 3 to 35 atoms because the high electrochemical alloying reactivity with lithium based on the addition of lead when the lead content is less than 3 atomic%. When the lead content is more than 35 atomic%, the high diffusion rate into the negative electrode, which is a characteristic of the lithium-indium alloy, is impaired, and in any case, the charge / discharge characteristics are reduced and good charging This is because the discharge characteristics cannot be obtained.
なお、リチウムと上記インジウム−鉛合金との合金割合
は、電池の用途に応じて種々に変えられる。一般にはリ
チウムが10〜50原子％の範囲から選ばれるが、特にリチ
ウムが30〜45原子％の範囲で好ましい結果が得られる。The alloy ratio of lithium and the indium-lead alloy can be variously changed depending on the application of the battery. Generally, lithium is selected from the range of 10 to 50 atom%, and particularly preferable result is obtained in the range of 30 to 45 atom%.
つぎに実施例をあげて本発明をさらに詳細に説明する。 Next, the present invention will be described in more detail with reference to examples.
実施例１ 厚さ0.1mm、直径7.8mmのリチウム板２枚と、厚さ0.3m
m、直径7.8mmで鉛を５原子％含有するインジウム−鉛合
金板とを負極材料に用い、負極缶内に一方のリチウム
板、インジウム−鉛合金板、他方のリチウム板の順に配
置し、常法に準じて電池組立を行い、電解質の存在下で
電気化学的にリチウムとインジウム−鉛合金とを合金化
して負極とした。Example 1 Two lithium plates having a thickness of 0.1 mm and a diameter of 7.8 mm and a thickness of 0.3 m
m, a diameter of 7.8 mm, and an indium-lead alloy plate containing 5 atomic% of lead were used as the negative electrode material, and one lithium plate, indium-lead alloy plate, and the other lithium plate were placed in this order in the negative electrode can. A battery was assembled according to the method and electrochemically alloyed with lithium and an indium-lead alloy in the presence of an electrolyte to obtain a negative electrode.
上記負極を有する電池を第１図に示す。図中、１はステ
ンレス鋼製で表面にニッケルメッキを施した負極缶で、
２は負極缶１の内面にスポット溶接したステンレス鋼網
よりなる負極集電体である。３は負極で、前記のように
リチウム板、鉛を５原子％含有するインジウム−鉛合金
板およびリチウム板を上記負極缶１内に配置して、電解
質の存在下で合金化することにより形成したものであ
る。４は微孔性ポリプロピレンフィルムからなるセパレ
ータ、５はポリプロピレン不織布からなる電解質吸収体
である。６は二硫化チタン（TiS2）を活物質とし、ポリ
テトラフルオロエチレンをバインダーとして加圧成形し
た正極で、厚さ0.5mm、直径7.0mmの円板状をしており、
その一方の面にはステンレス鋼網からなる正極集電体７
が配設されている。８はステンレス鋼製で表面にニッケ
ルメッキを施した正極缶で、９はポリプロピレン製のガ
スケットである。そして、この電池には、４−メチル−
1,3−ジオキソラン60容量％、1,2−ジメトキシエタン3
4.8容量％およびヘキサメチルホスホリックトリアミド
5.2容量％からなる混合溶媒にLiPF6を1.0mol/溶解し
た液状の有機非水電解質が使用されている。この電池の
負極中のリチウムの組成は約45原子％で、負極理論電気
量は20mAhであり、正極の理論電気量は8mAhである。上
記電解質におけるヘキサメチルホスホリックトリアミド
はLiPF6を安定化させるための安定剤である。A battery having the above negative electrode is shown in FIG. In the figure, 1 is a negative electrode can made of stainless steel and having a nickel plated surface,
Reference numeral 2 denotes a negative electrode current collector made of stainless steel mesh spot-welded to the inner surface of the negative electrode can 1. Reference numeral 3 denotes a negative electrode, which was formed by placing a lithium plate, an indium-lead alloy plate containing 5 atomic% of lead and a lithium plate in the negative electrode can 1 and alloying them in the presence of an electrolyte as described above. It is a thing. Reference numeral 4 is a separator made of a microporous polypropylene film, and 5 is an electrolyte absorber made of a polypropylene nonwoven fabric. Reference numeral 6 is a positive electrode formed by pressure molding using titanium disulfide (TiS 2 ) as an active material and polytetrafluoroethylene as a binder, and has a disk shape with a thickness of 0.5 mm and a diameter of 7.0 mm.
A positive electrode current collector 7 made of stainless steel mesh is provided on one surface thereof.
Is provided. Reference numeral 8 is a positive electrode can made of stainless steel and having a surface plated with nickel, and 9 is a polypropylene gasket. And in this battery, 4-methyl-
1,3-dioxolane 60% by volume, 1,2-dimethoxyethane 3
4.8% by volume and hexamethylphosphoric triamide
A liquid organic non-aqueous electrolyte in which 1.0 mol / mol of LiPF 6 is dissolved in a mixed solvent of 5.2% by volume is used. The composition of lithium in the negative electrode of this battery was about 45 atomic%, the theoretical amount of electricity of the negative electrode was 20 mAh, and the theoretical amount of electricity of the positive electrode was 8 mAh. Hexamethylphosphoric triamide in the above electrolyte is a stabilizer for stabilizing LiPF 6 .
実施例２ 鉛を５原子％含有するインジウム−鉛合金板に代えて、
鉛含有量が15原子％のインジウム−鉛合金板を用いたほ
かは実施例１と同様にして非水電解質二次電池を製造し
た。Example 2 Instead of an indium-lead alloy plate containing 5 atomic% of lead,
A non-aqueous electrolyte secondary battery was manufactured in the same manner as in Example 1 except that an indium-lead alloy plate having a lead content of 15 atomic% was used.
実施例３ 鉛を５原子％含有するインジウム−鉛合金板に代えて、
鉛含有量が30原子％のインジウム−鉛合金板を用いたほ
かは実施例１と同様にして非水電解質二次電池を製造し
た。Example 3 Instead of an indium-lead alloy plate containing 5 atom% of lead,
A non-aqueous electrolyte secondary battery was manufactured in the same manner as in Example 1 except that an indium-lead alloy plate having a lead content of 30 atomic% was used.
比較例１ 厚さ0.1mm、直径7.8mmのリチウム板２枚と、厚さ0.3m
m、直径7.8mmのインジウム板とを負極材料として用い、
負極缶に一方のリチウム板、インジウム板、他方のリチ
ウム板の順に配置し、電解質の存在下でリチウムとイン
ジウムとを合金化して負極としたほかは実施例１と同様
にして非水電解質二次電池を製造した。Comparative Example 1 Two lithium plates with a thickness of 0.1 mm and a diameter of 7.8 mm and a thickness of 0.3 m
m, using an indium plate with a diameter of 7.8 mm as the negative electrode material,
Nonaqueous electrolyte secondary as in Example 1 except that one lithium plate, indium plate, and the other lithium plate were placed in this order in the negative electrode can, and lithium and indium were alloyed in the presence of an electrolyte to form a negative electrode. A battery was manufactured.
比較例２ 鉛を５原子％含有するインジウム−鉛合金板に代えて、
鉛含有量が１原子％のインジウム−鉛合金板を用いたほ
かは実施例１と同様にして非水電解質二次電池を製造し
た。Comparative Example 2 Instead of an indium-lead alloy plate containing 5 atom% of lead,
A non-aqueous electrolyte secondary battery was manufactured in the same manner as in Example 1 except that an indium-lead alloy plate having a lead content of 1 atomic% was used.
比較例３ 鉛を５原子％含有するインジウム−鉛合金板に代えて、
鉛含有量が40原子％のインジウム−鉛合金板を用いたほ
かは実施例１と同様にして非水電解質二次電池を製造し
た。Comparative Example 3 Instead of an indium-lead alloy plate containing 5 atom% of lead,
A non-aqueous electrolyte secondary battery was manufactured in the same manner as in Example 1 except that an indium-lead alloy plate having a lead content of 40 atomic% was used.
上記実施例１〜３の電池および比較例１〜３の電池を1.
0mAの定電流で0.5mAhの充放電を1.3〜2.2Vの電圧範囲で
サイクルさせた際の0.5mAh放電終了時の電池電圧と充放
電サイクル数との関係を調べた。その結果を第２図に示
す。なお、実施例１〜３の電池の各充放電サイクルにお
ける0.5mAh放電終了時の電池電圧は、いずれもほぼ同様
であり、それぞれについて図示すると繁雑化するため、
第２図においては、実施例１の電池電圧のみを図示し、
実施例２、３の電池電圧は図示することなく、実施例１
の電池電圧で代表表示し、実施例１の電池電圧変化を示
す曲線に実施例１の文字と共に実施例２、３の数字を付
した。The batteries of Examples 1 to 3 and the batteries of Comparative Examples 1 to 3 were 1.
The relationship between the battery voltage and the number of charge / discharge cycles at the end of discharge of 0.5 mAh when charging / discharging 0.5 mAh at a constant current of 0 mA was cycled in the voltage range of 1.3 to 2.2 V was investigated. The results are shown in FIG. In addition, the battery voltage at the end of 0.5 mAh discharge in each charge / discharge cycle of the batteries of Examples 1 to 3 is almost the same, and it becomes complicated when illustrated for each,
In FIG. 2, only the battery voltage of Example 1 is shown,
The battery voltages of Examples 2 and 3 are not shown, and the battery voltage of Example 1 is not shown.
The curve representing the battery voltage change of Example 1 is represented by the battery voltage of Example 1 and the numbers of Examples 2 and 3 are attached to the curve of Example 1 together with the letters of Example 1.
第２図に示す結果からも明らかなように、鉛をそれぞれ
５原子％、15原子％、30原子％含有するインジウム−鉛
合金を用いた実施例１、２および３の電池は、鉛を含ま
ないインジウムを用いた比較例１の電池に比べて、各サ
イクルにおける0.5mAh放電終了時の電池電圧が高く、ま
た1.3V終了で見た場合の0.5mAh放電可能なサイクル数も
多く、充放電特性が優れていた。As is clear from the results shown in FIG. 2, the batteries of Examples 1, 2 and 3 using the indium-lead alloys containing lead at 5 atomic%, 15 atomic% and 30 atomic%, respectively, contained lead. The battery voltage at the end of 0.5mAh discharge in each cycle is higher than that of the battery of Comparative Example 1 using no indium, and the number of cycles that can be discharged at 0.5mAh at 1.3V is large, and the charge / discharge characteristics are high. Was excellent.
しかし、インジウム−鉛合金を用いた場合でも、これに
対して、鉛含有量が１原子％と少ないインジウム−鉛合
金を用いた比較例２の電池や鉛含有量が40原子％のイン
ジウム−鉛合金を用いた比較例３の電池は、比較例１の
電池よりは充放電特性が優れているものの、充放電サイ
クル数が多くなると実施例１〜３の電池に比べて充放電
特性が低下した。However, even when the indium-lead alloy is used, the battery of Comparative Example 2 using the indium-lead alloy having a small lead content of 1 atomic% and the indium-lead having a lead content of 40 atomic% are used. The battery of Comparative Example 3 using the alloy had better charge / discharge characteristics than the battery of Comparative Example 1, but the charge / discharge characteristics deteriorated as the number of charge / discharge cycles increased, as compared with the batteries of Examples 1 to 3. .
これは、鉛含有量が１原子％と少ない比較例２の電池で
は、鉛含有量が少ないために、鉛の添加に基づくリチウ
ムとの電気化学的合金化反応性が充分に高くならず、鉛
含有量が40原子％と多い比較例３の電池では、鉛含有量
が多くなったためにインジウムの含有量が少なくなり、
そのため、リチウム−インジウム合金の特徴である負極
中へのリチウムの高い拡散速度が損なわれ、いずれの場
合も、充放電特性が低下したものと考えられる。This is because the battery of Comparative Example 2 having a low lead content of 1 atomic% does not have sufficiently high electrochemical alloying reactivity with lithium based on the addition of lead because of the low lead content. In the battery of Comparative Example 3 having a large content of 40 atomic%, the content of indium was small due to the large content of lead,
Therefore, it is considered that the high diffusion rate of lithium into the negative electrode, which is a characteristic of the lithium-indium alloy, is impaired, and in any case, the charge / discharge characteristics are deteriorated.
上記実施例では、電解質として、４−メチル−1,3−ジ
オキソランと1,2−ジメトキシエタンとを溶媒とする液
状の有機電解質を用いたが、溶媒の種類、また溶媒の種
類も種々変え得る。一般には、たとえば1,2−ジメトキ
シエタン、1,2−ジエトキシエタン、プロピレンカーボ
ネート、γ−ブチロラクトン、テトラヒドロフラン、２
−メチルテトラヒドロフラン、1,3−ジオキソラン、４
−メチル−1,3−ジオキソランなどの単独または２種以
上の混合溶媒に、たとえばLiClO4、LiPF6、LiBF4、LiB(C6H
5)4などの溶質を１種または２種以上溶解したものが用
いられる。In the above examples, a liquid organic electrolyte using 4-methyl-1,3-dioxolane and 1,2-dimethoxyethane as a solvent was used as the electrolyte, but the kind of the solvent and the kind of the solvent may be variously changed. . Generally, for example, 1,2-dimethoxyethane, 1,2-diethoxyethane, propylene carbonate, γ-butyrolactone, tetrahydrofuran, 2
-Methyltetrahydrofuran, 1,3-dioxolane, 4
-Methyl-1,3-dioxolane or the like or a mixed solvent of two or more thereof, for example, LiClO 4 , LiPF 6 , LiBF 4 , LiB (C 6 H
5 ) One or two or more solutes such as 4 are used.
また、実施例では、正極活物質として、二硫化チタンを
用いたが、それに代えて、たとえば二硫化モリブデン
（MoS2）、三硫化モリブデン（MoS3）、二硫化鉄（Fe
S2）、硫化ジルコニウム（ZrS2）、二硫化ニオブ（Nb
S2）、三硫化リンニッケル（NiPS3）、バナジウムセレ
ナイド（VSe2）なども用いることができる。Further, in the examples, titanium disulfide was used as the positive electrode active material, but instead of it, for example, molybdenum disulfide (MoS 2 ), molybdenum trisulfide (MoS 3 ), iron disulfide (Fe
S 2 ), zirconium sulfide (ZrS 2 ), niobium disulfide (Nb
S 2 ), phosphorous nickel trisulfide (NiPS 3 ), vanadium selenide (VSe 2 ) and the like can also be used.
以上説明したように、本発明ではリチウムと、鉛含有量
が３〜35原子％のインジウムを主成分とするインジウム
−鉛合金とを合金化して負極とすることにより充放電特
性の優れた非水電解質二次電池を提供することができ
た。As described above, according to the present invention, lithium is alloyed with an indium-lead alloy containing indium having a lead content of 3 to 35 atomic% as a main component to form a negative electrode. An electrolyte secondary battery could be provided.
第１図は本発明に係る非水電解質二次電池の一例を示す
断面図である。第２図は本発明の実施例１〜３の電池と
比較例１〜３の電池の充放電サイクルを繰り返したとき
の0.5mAh放電終了時の電池電圧と充放電サイクル数との
関係を示す図である。 ３……負極、６……正極FIG. 1 is a sectional view showing an example of a non-aqueous electrolyte secondary battery according to the present invention. FIG. 2 is a diagram showing the relationship between the battery voltage and the number of charge / discharge cycles at the end of 0.5 mAh discharge when the charge / discharge cycles of the batteries of Examples 1 to 3 of the present invention and the batteries of Comparative Examples 1 to 3 were repeated. Is. 3 ... Negative electrode, 6 ... Positive electrode
Claims (1)
よび負極を備えてなる非水電解質二次電池において、リ
チウムと、鉛含有量が３〜35原子％のインジウムを主成
分とするインジウム−鉛合金とを合金化して負極に用い
たことを特徴とする非水電解質二次電池。1. A non-aqueous electrolyte secondary battery comprising a positive electrode, a lithium ion conductive non-aqueous electrolyte and a negative electrode, wherein indium-lead is composed mainly of lithium and indium having a lead content of 3 to 35 atomic%. A non-aqueous electrolyte secondary battery characterized by being used as a negative electrode after alloying with an alloy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60159725A JPH0773045B2 (en) | 1985-07-18 | 1985-07-18 | Non-aqueous electrolyte secondary battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60159725A JPH0773045B2 (en) | 1985-07-18 | 1985-07-18 | Non-aqueous electrolyte secondary battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6220249A JPS6220249A (en) | 1987-01-28 |
| JPH0773045B2 true JPH0773045B2 (en) | 1995-08-02 |
Family
ID=15699911
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60159725A Expired - Lifetime JPH0773045B2 (en) | 1985-07-18 | 1985-07-18 | Non-aqueous electrolyte secondary battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0773045B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59186274A (en) * | 1983-04-07 | 1984-10-23 | Matsushita Electric Ind Co Ltd | Manufacture of nonaqueous electrolyte secondary battery |
| JPS6166370A (en) * | 1984-09-08 | 1986-04-05 | Hitachi Maxell Ltd | Lithium secondary battery |
-
1985
- 1985-07-18 JP JP60159725A patent/JPH0773045B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6220249A (en) | 1987-01-28 |
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