JPS61163564A - Nonaqueous electrolytic solution - Google Patents
Nonaqueous electrolytic solutionInfo
- Publication number
- JPS61163564A JPS61163564A JP60004585A JP458585A JPS61163564A JP S61163564 A JPS61163564 A JP S61163564A JP 60004585 A JP60004585 A JP 60004585A JP 458585 A JP458585 A JP 458585A JP S61163564 A JPS61163564 A JP S61163564A
- Authority
- JP
- Japan
- Prior art keywords
- negative electrode
- positive electrode
- collector
- battery
- indium
- 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
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
- Cell Electrode Carriers And Collectors (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はリチウム又はリチウム化合物を活物質とする負
極を備えた非水電解液電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a non-aqueous electrolyte battery equipped with a negative electrode containing lithium or a lithium compound as an active material.
（ロ） 従来の技術
リチウム又はリチウム化合物を活物質とする負極を用い
た非水電解液電池は高エネルギー密度を有し且目己放電
が少ないという利点を有する。(b) Conventional technology A non-aqueous electrolyte battery using a negative electrode containing lithium or a lithium compound as an active material has the advantage of having high energy density and low self-discharge.
そして１％に特開昭５５−１５４０７０号公報に開示さ
れているように酸化第二銅や二硫化鉄、或いは二酸化ビ
スマス、四三酸化鉛などを用いれば電池電圧が約ｔＳＶ
程度となり既存のアルカリ乾電池、水銀電池、銀電池等
と互換使用しうる利点があるので注目されている。If cupric oxide, iron disulfide, bismuth dioxide, trilead tetroxide, etc. are used for 1% as disclosed in JP-A No. 55-154070, the battery voltage will be approximately tSV.
It is attracting attention because it has the advantage of being compatible with existing alkaline batteries, mercury batteries, silver batteries, etc.
ところでとの種電池の問題点は保存時においてリチウム
負極の反応面に水酸化リチウムなどの不働態膜が生成し
て内部抵抗が増大することである。However, the problem with the seed battery is that during storage, a passive film of lithium hydroxide or the like is formed on the reaction surface of the lithium negative electrode, increasing the internal resistance.
（ハ）発明が解決しようとする問題点
本発明はリチウム負極の反応面に不働態膜が生成するの
を抑制して内部抵抗の上昇を抑えることを主目的とする
。(c) Problems to be Solved by the Invention The main object of the present invention is to suppress the formation of a passive film on the reaction surface of a lithium negative electrode, thereby suppressing an increase in internal resistance.
とする。shall be.
に）問題点を解決するための手段
本発明は正極集電体として、インジウム金属を付着させ
た導電部材を用いることを特徴とする特尚、導電部材と
しては網或いはパンチング板の如き多孔性部材を用いた
方が接触抵抗を減じつるため有益であると共に、素材と
してはステンレス、銅、鉄或いはチタンが好ましい。B) Means for Solving the Problems The present invention is characterized in that a conductive member to which indium metal is adhered is used as the positive electrode current collector, and the conductive member may be a porous member such as a mesh or a punched plate. It is more advantageous to use stainless steel, copper, iron, or titanium as the material because it reduces contact resistance.
（ホ）作 用
本発明電池によれば、正極集電体に付着せるインジウム
が電池保存時リチウム負極の表面に移行析ｄしてインジ
ウム層を形成し、水酸化リチウムの如き不働態膜の生成
を抑制することができると共に、インジウムを正極集電
体に付着させて用いるので１例えばインジウム単独を板
状にして用いる場合に比して少量の使用を可能ならしめ
効率良く使用しつる。(E) Function According to the battery of the present invention, indium deposited on the positive electrode current collector migrates and precipitates on the surface of the lithium negative electrode during battery storage to form an indium layer, forming a passive film such as lithium hydroxide. In addition, since indium is used by being attached to the positive electrode current collector, it is possible to use a smaller amount of indium and more efficiently than when, for example, indium alone is used in the form of a plate.
（へ）実施例
市販特級の酸化第二銅を空気中７００℃で１０時間焼成
し、冷却後粉砕して４００メツシユのふるいを通過させ
て活物質粉末を得る。(f) Example Commercially available special grade cupric oxide was calcined in air at 700° C. for 10 hours, cooled, and then crushed to pass through a 400-mesh sieve to obtain active material powder.
正極は上記酸化第二銅活物質粉末に、導電剤としての炭
素粉末２重量％及び結着剤としてのフッ素樹脂粉末２重
量％を加えて混合し、この混合物を直径１ａ８態、厚み
１２３１ｍに加圧成型後約３００℃で熱結着したもので
ある。The positive electrode was prepared by mixing the cupric oxide active material powder with 2% by weight of carbon powder as a conductive agent and 2% by weight of fluororesin powder as a binder, and adding this mixture to a diameter of 1a8 and a thickness of 1231m. After pressure molding, it was thermally bonded at about 300°C.
負極はリチウム圧延板ｔｉｉ径８．０簡に打抜いたもの
を用い、又電解液は過塩素酸リチウムをグロピレンカー
ボネートとｔ２ジメトキシエタンとの混合溶媒に溶解し
たものでありこれをポリプロピレン不織布よりなるセパ
レータに含浸した。The negative electrode used was a lithium rolled plate punched out with a diameter of 8.0, and the electrolyte was prepared by dissolving lithium perchlorate in a mixed solvent of glopylene carbonate and t2 dimethoxyethane. impregnated into a separator.
又・本発明の要旨とする正極集電体はステンレス網にイ
ンジウムメッキを施したものである。Moreover, the positive electrode current collector that is the gist of the present invention is made of a stainless steel mesh plated with indium.
第１図は上記要素を用いて組立てた本発明による扁平型
非水電解液電池の縦断面図を示し、（１）はステンレス
よりなる正極缶であってその内底面には本発明の要旨と
する正極集電体（２）を介して正極（３）が圧接されて
いる。（４）はステンレスよりなる負極缶でありでその
内底面にはステンレス製の負極集電体（５）を介して負
極（６）が圧着されている。（７）はセパレータ、（８
）は絶縁バッキングである。尚、電池寸法は直径１１６
ｍ１ｌＩ、厚み＆５ｇ１１であった。FIG. 1 shows a longitudinal cross-sectional view of a flat non-aqueous electrolyte battery according to the present invention assembled using the above-mentioned elements. A positive electrode (3) is pressed into contact with the positive electrode current collector (2) interposed therebetween. (4) is a negative electrode can made of stainless steel, and a negative electrode (6) is crimped to the inner bottom surface of the negative electrode can through a negative electrode current collector (5) made of stainless steel. (7) is a separator, (8
) is an insulating backing. In addition, the battery dimensions are 116 mm in diameter.
m1lI, thickness & 5g11.
上述の本発明電池（ＡＪの優位性を調べるために。In order to investigate the superiority of the above-mentioned invention battery (AJ).
正極集電体としてインジウムメッキを施さないステンレ
ス網を用いることを除いて他は本発明電池と同様の従来
電池（Ｂ）を作成した。A conventional battery (B) was prepared which was the same as the battery of the present invention except that a stainless steel mesh without indium plating was used as the positive electrode current collector.
８２図及び第５図はこれら電池の特性比較図であり、第
２図は内部抵抗の経時変化を示し、第５図は放電特性を
示す。尚、第５図の測定条件は電池組立後ｉ６にΩ定抵
抗を用いて１５時間放電するという予備放電処理を施し
、そして６０℃で３ケ月保存した後、２０℃において１
にΩ負荷で放電した。FIG. 82 and FIG. 5 are characteristic comparison diagrams of these batteries, with FIG. 2 showing the change in internal resistance over time, and FIG. 5 showing the discharge characteristics. The measurement conditions shown in Figure 5 are as follows: After battery assembly, i6 was subjected to a preliminary discharge treatment of discharging for 15 hours using an Ω constant resistance, and after being stored at 60°C for 3 months, it was stored at 20°C for 1 hour.
was discharged with an Ω load.
第２図及び第３図より本発明電池（ＡＩは従来電池（Ｂ
）に比して、特に保存特性が改善されているのがわかる
。From FIG. 2 and FIG. 3, the present invention battery (AI is the conventional battery (B)
), it can be seen that the storage characteristics are particularly improved.
この理由は１本発明電池の場合、正極集電体に付着され
たインジウムと、リチウム負極との間で局部電池が形成
され、インジウムが電解液中に溶解した後リチウム負嘴
の反応面に移行析出してインジウム層が形成される結果
、リチウム負極の反応面に水酸化リチウムの如き不働態
膜の生成が抑制され、内部抵抗の上昇が抑えられるため
であると考えられる。The reason for this is 1. In the case of the battery of the present invention, a local battery is formed between the indium attached to the positive electrode current collector and the lithium negative electrode, and after the indium is dissolved in the electrolyte, it migrates to the reaction surface of the lithium negative beak. This is thought to be because the formation of an indium layer through precipitation suppresses the formation of a passive film such as lithium hydroxide on the reaction surface of the lithium negative electrode, thereby suppressing an increase in internal resistance.
尚、正極活物質の一例として酸化第二銅を例示したがこ
れに限定されることなく酸化第二銅以外の金属酸化物、
或いは金属硫化物などを適用することもできる。Although cupric oxide is illustrated as an example of the positive electrode active material, metal oxides other than cupric oxide,
Alternatively, metal sulfides or the like can also be applied.
（）） 発明の効果
上述した如く１本発明電池は正極集電体としてインジウ
ム金属を付着させた導電部材を用いることを４Ｉ徴とす
るものであり次遅の如き効果を奏する。()) Effects of the Invention As mentioned above, the battery of the present invention has the 4I feature of using a conductive member to which indium metal is attached as a positive electrode current collector, and has the following effects.
即ち、ａｅ電池の保存時、正極集電体に付着せるインジ
ウムがリチウム負極の表面に移行析出してインジウム層
を形成し、リチウム負極の表面に水酸化リチウムの如き
不働態膜の生成が抑制されるので内部抵抗の上昇が抑え
られ電池性能の改善が計れる。That is, during storage of an AE battery, indium attached to the positive electrode current collector migrates and precipitates on the surface of the lithium negative electrode to form an indium layer, suppressing the formation of a passive film such as lithium hydroxide on the surface of the lithium negative electrode. This suppresses the increase in internal resistance and improves battery performance.
ｂ、又、インジウムの使用方法として正極集電体に付着
させて朋いるためインジウムの使用量を極少量にするこ
とができ効率良く使用しうると共にインジウム層によっ
て正極集電体材料の溶出を抑制しうる。b. Also, since indium is used by attaching it to the positive electrode current collector, the amount of indium used can be minimized, allowing for efficient use, and the indium layer suppresses elution of the positive electrode current collector material. I can do it.
第１図は本発明電池の縦断面図、＄２図及び第３図は本
発明電池と従来電池との′電池特性比較図であり、第２
図は内部抵抗の経時変化、第５図は保存特性を夫々示す
。
（１）・−正極缶、（２）−正極集電体、 （３）−
・正極。
（４）−・負極缶、 （５）−・・負極集電体、
１６）−・負極。
（７１−−セパレータ、 （８）−絶縁パッキング。Figure 1 is a longitudinal cross-sectional view of the battery of the present invention, Figures 2 and 3 are comparison diagrams of battery characteristics between the battery of the present invention and a conventional battery.
The figure shows the change in internal resistance over time, and Figure 5 shows the storage characteristics. (1) - Positive electrode can, (2) - Positive electrode current collector, (3) -
・Positive electrode. (4)--Negative electrode can, (5)--Negative electrode current collector,
16)--Negative electrode. (71--separator, (8)-insulating packing.
Claims (2)
と、非水電解液と、金属酸化物、金属硫化物などを活物
質とする正極とを備えるものであって、正極集電体とし
てインジウム金属を付着させた導電部材を用いることを
特徴とする非水電解液電池。(1) A negative electrode that uses lithium or a lithium compound as an active material, a non-aqueous electrolyte, and a positive electrode that uses a metal oxide, metal sulfide, etc. as an active material, and the positive electrode current collector is indium metal. A non-aqueous electrolyte battery characterized by using a conductive member to which is attached.
ような多孔性部材である特許請求の範囲第（１）項記載
の非水電解液電池。(2) The nonaqueous electrolyte battery according to claim (1), wherein the conductive member is a porous member such as a mesh, a punched plate, or a lath plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60004585A JPS61163564A (en) | 1985-01-14 | 1985-01-14 | Nonaqueous electrolytic solution |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60004585A JPS61163564A (en) | 1985-01-14 | 1985-01-14 | Nonaqueous electrolytic solution |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61163564A true JPS61163564A (en) | 1986-07-24 |
Family
ID=11588115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60004585A Expired - Lifetime JPS61163564A (en) | 1985-01-14 | 1985-01-14 | Nonaqueous electrolytic solution |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61163564A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63284756A (en) * | 1987-05-15 | 1988-11-22 | Sanyo Electric Co Ltd | Non-aqueous electrolyte battery |
| WO2015045929A1 (en) * | 2013-09-25 | 2015-04-02 | トヨタ自動車株式会社 | All-solid-state battery |
| JP2015065033A (en) * | 2013-09-25 | 2015-04-09 | トヨタ自動車株式会社 | All-solid battery |
| JP2015065029A (en) * | 2013-09-25 | 2015-04-09 | トヨタ自動車株式会社 | All-solid battery |
-
1985
- 1985-01-14 JP JP60004585A patent/JPS61163564A/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63284756A (en) * | 1987-05-15 | 1988-11-22 | Sanyo Electric Co Ltd | Non-aqueous electrolyte battery |
| WO2015045929A1 (en) * | 2013-09-25 | 2015-04-02 | トヨタ自動車株式会社 | All-solid-state battery |
| JP2015065033A (en) * | 2013-09-25 | 2015-04-09 | トヨタ自動車株式会社 | All-solid battery |
| JP2015065029A (en) * | 2013-09-25 | 2015-04-09 | トヨタ自動車株式会社 | All-solid battery |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |