JPS61133559A - Manufacture of battery - Google Patents
Manufacture of batteryInfo
- Publication number
- JPS61133559A JPS61133559A JP59254609A JP25460984A JPS61133559A JP S61133559 A JPS61133559 A JP S61133559A JP 59254609 A JP59254609 A JP 59254609A JP 25460984 A JP25460984 A JP 25460984A JP S61133559 A JPS61133559 A JP S61133559A
- Authority
- JP
- Japan
- Prior art keywords
- material powder
- organic solvent
- raw material
- battery
- positive electrode
- 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
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
- H01M4/04—Processes of manufacture in general
- H01M4/0402—Methods of deposition of the material
- H01M4/0416—Methods of deposition of the material involving impregnation with a solution, dispersion, paste or dry powder
-
- 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
- H01M4/04—Processes of manufacture in general
-
- 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
- H01M4/04—Processes of manufacture in general
- H01M4/043—Processes of manufacture in general involving compressing or compaction
- H01M4/0433—Molding
-
- 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
本発明は粉末状の正極原料を加圧成形して電極とする電
池の製造法に関するもので、特に乾燥雰囲気における静
電気の悪影響の４Ｔい電池のＩＩＩ造法を提供するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for manufacturing a battery in which an electrode is formed by pressure molding a powdered positive electrode raw material, and in particular, it relates to a method for manufacturing a battery that uses a powdered positive electrode raw material as an electrode. It provides a manufacturing method.
従来の技術
高エネルギー密度の電池として、負極にアルカリ金属や
アルカリ土金属、もしくはこれらの合金を用いた電池は
高エネルギー密度の電池として開発が進められている。BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION Batteries using alkali metals, alkaline earth metals, or alloys thereof for negative electrodes are being developed as high energy density batteries.
−次電池として代表的なものに熱電池がある。この電池
の詳細は次の文献に述べられティる（ ［）ｅｖｅｌｏ
ｐｍｅｎｔ ｏｆ ａ ｌ−ｉｔｉｕｍ△１１ｏｙ
Ｔ ｒｏｎ ｌ’） １ｓｕｌｆｉｔｌｅ ６０−Ｍ
ｔｎｕｔｅ ｐｒｉｍａｒｙＴｈｅｒｌＩｌａｌ Ｂ
ａｔｔｅｒｙ、 ＳΔＮ Ｄ ７９−０８１４． Ｓ
ａｎｄｔａ Ｌ ａｂｏｒａｔｏｒｉｅｓ 、 Ａｐｒ
ｉｌ １９７９ ） 。また二次電池として高温電池が
研究されている（特開昭５７−６１２７１）。-A typical secondary battery is a thermal battery. The details of this battery are described in the following document ([) evelo
pment of a l-itium△11oy
Tron l') 1sulfitle 60-M
tnute primaryTherlIlal B
attery, SΔND 79-0814. S
andta Laboratories, April
il 1979). Furthermore, high-temperature batteries are being researched as secondary batteries (Japanese Patent Application Laid-Open No. 57-61271).
これらの電池はいずれも粉末状の正極１１！ｌを加圧成
形して電極としている。These batteries all have a powdered positive electrode 11! 1 is pressure-molded to form an electrode.
発明が解決しようとする問題点
負極に用いるアルカリ金属やアルカリ土金属、も１ツク
はこれらの合金は極めて活性が高く、空気中の水分と反
応しやすく、また電解質も吸湿しやすいものが多いため
に、電池の製造は乾燥空気のドライルームや不活性雰囲
気のグローブボックス中で行なわれている。このような
低水分の雰囲気では静電気が発生しやすく、電池の製造
を困難にしていた。ｔなわち、製造装置や測定装置等に
静電気が発生しやすいだけでなく、原料粉末の流動や撮
動等でも静電気が発生し、人体やグローブボックスのア
クリル板やグローブ等に原料粉末が付着し、作業環境を
汚染したり、静電気の放電による発火の危険性やノイズ
の発生による電子機器の誤差や故障の原因となったりし
た。Problems to be Solved by the Invention Many of the alkali metals and alkaline earth metals used in negative electrodes are extremely active and easily react with moisture in the air, and the electrolyte also tends to absorb moisture. In general, battery manufacturing is carried out in a dry room with dry air or in a glove box with an inert atmosphere. Static electricity is likely to occur in such a low-moisture atmosphere, making it difficult to manufacture batteries. In other words, not only is static electricity likely to be generated in manufacturing equipment, measuring equipment, etc., but also static electricity is generated during the flow of raw material powder and when photographing, etc., and raw material powder may adhere to the human body, acrylic plates in glove boxes, gloves, etc. This can contaminate the work environment, pose a risk of fire due to static electricity discharge, and cause errors or malfunctions in electronic equipment due to the generation of noise.
問題点を解決するための手段
本発明は粉末状の正極層＄１１を加圧成形して電極とす
る電池の製造法において、比誘電率３０以上の有機溶媒
を添加した正極層１１粉末を使用することを特徴とする
ものである。Means for Solving the Problems The present invention uses a powdered positive electrode layer 11 to which an organic solvent having a dielectric constant of 30 or more is added in a method for manufacturing a battery in which a powdered positive electrode layer 11 is pressure-molded to form an electrode. It is characterized by:
作用
本発明によれば、正極原料粉末に比誘電率３０以上の有
機溶媒を添加することにより、静電気の発生がなくなり
、また静電気の影響を受けなくなった。According to the present invention, by adding an organic solvent having a dielectric constant of 30 or more to the positive electrode raw material powder, the generation of static electricity is eliminated and the positive electrode is no longer affected by static electricity.
実施例
１）正極層１１粉末５０Ｑに種々の有機溶媒を添加し、
添加量と静電気の関係を調べた。正極原料粉末は二硫化
鉄とＬｉ Ｃｌ −Ｋ ＣＩ Ｊｌ：品温と二酸化ケイ
素との混合物で、１００メツシユ〜３２５メツシユの粉
末である。Example 1) Various organic solvents were added to the positive electrode layer 11 powder 50Q,
The relationship between the amount added and static electricity was investigated. The positive electrode raw material powder is a mixture of iron disulfide, Li Cl -K CI Jl: temperature, and silicon dioxide, and is a powder of 100 to 325 meshes.
種々の有機溶媒を添加した正極原料粉末約０．５ｇをス
テンレス製のスプーンに取りグローブボックス中のアク
リル板の上に置いた時、静電気により飛散するかどうか
を調べた。比誘電率３０以上のプロピレンカーボネート
（比誘電率６４．４） 、γ−ブチロラクトン（同３９
．１） 、アセトニトリル（同３８）、ジメチルホルム
アミド（同３６．７） 、プロピレングリコール（同３
２）等は５μｌ１５０（］以上の添加により静電気の影
響がなくなり、粉末の飛散が認められなくなった。比誘
電率３０以下のテトラヒドロフラン（同６．２） 、ジ
メトキシエタン（同７．２） 、ピリジン（同１２．０
）等は１００μ１１５０（］以上添加しても添加の効果
がなく、静電気によりスプーン上からアクリル板への粉
末の飛散が認められた。Approximately 0.5 g of positive electrode raw material powder to which various organic solvents had been added was taken into a stainless steel spoon and placed on an acrylic plate in a glove box to see if it would scatter due to static electricity. Propylene carbonate with a dielectric constant of 30 or more (dielectric constant 64.4), γ-butyrolactone (dielectric constant 39)
．． 1), acetonitrile (38), dimethylformamide (36.7), propylene glycol (36.7),
For 2), etc., the effect of static electricity was eliminated by adding 5 μl 150 () or more, and no powder scattering was observed.Tetrahydrofuran (6.2), dimethoxyethane (7.2), and pyridine with a dielectric constant of 30 or less (12.0
) etc. had no effect even if 100μ1150(] or more was added, and the powder was observed to scatter from the top of the spoon to the acrylic plate due to static electricity.
正極原料粉末に添加する有機溶媒は負極に悪影響を与え
ないために非プロ［−ン牲のものが好ましく、また有機
溶媒の上記による作業環境の悪化を防ぐため、蒸気圧は
低いものが好ましい。特にプロピレンカーボネートとγ
−ブチロラクトンはこれらの条件を満足するものであり
、最適なものである。The organic solvent added to the positive electrode raw material powder is preferably a non-prone solvent so as not to have an adverse effect on the negative electrode, and preferably has a low vapor pressure in order to prevent the above-mentioned deterioration of the working environment due to the organic solvent. Especially propylene carbonate and γ
-Butyrolactone satisfies these conditions and is optimal.
２）正極原料粉末５０ｇ当り３０μｍのプロピレンカー
ボネートを添ハ０した正極を用いて熱電池を構成した。2) A thermal battery was constructed using a positive electrode to which 30 μm of propylene carbonate was added per 50 g of positive electrode raw material powder.
熱電池として、負極層にリチウム−アルミニウム合金０
．７ｇ 、電解質層にｌ−Ｉ ＣＩ −Ｋ Ｃ１共晶塩
と肯Ｏ粉末の混合物２．０ｇを使用した。正極層として
、二硫化鉄６４％、ＬＩＣＩ−ＫＣＩ共品塩３４％、二
酸化ケイ素２％からなるプロピレンカーボネートを添加
した混合物１．５ｇを使用した。素電池は負極層、電解
質層、正極層の各層が三層一体に加圧成形されており、
直径５４ｍｍ、厚さ １．Ｏ５ｎｍの円板状である。こ
れらの素電池１５枚と、ＦｅとＫ ＣＩ Ｏａとの混合
物よりなる発熱剤とを交互に積層して熱電池を構成し、
電池を活性化して６．６への電流で放電した。その結果
、正極にプロピレンカーボネートを添加しない従来電池
と全（同じ放電特性を示した。本発明実施電池は素電池
の製造工程において正極原料粉末の静電気による飛散は
全く認められず、作業環境の汚染がなく、製造が容易と
なった。As a thermal battery, lithium-aluminum alloy 0 is used in the negative electrode layer.
．． 7 g, and 2.0 g of a mixture of l-I CI-K C1 eutectic salt and KenO powder was used in the electrolyte layer. As the positive electrode layer, 1.5 g of a mixture containing 64% iron disulfide, 34% LICI-KCI salt, and 2% silicon dioxide to which propylene carbonate was added was used. The unit cell is made up of three layers: a negative electrode layer, an electrolyte layer, and a positive electrode layer, all of which are pressure molded into one.
Diameter 54mm, thickness 1. It has a disk shape of 05 nm. A thermal battery was constructed by alternately stacking 15 of these unit cells and a heat generating agent made of a mixture of Fe and K CI Oa,
The cell was activated and discharged at a current of 6.6. As a result, it showed the same discharge characteristics as a conventional battery in which propylene carbonate was not added to the positive electrode.In the battery of the present invention, no scattering of the positive electrode raw material powder due to static electricity was observed during the manufacturing process of the unit cell, and it polluted the working environment. This makes manufacturing easier.
発明の効果
以上のように、本発明は粉末状の正極原料を加圧成形し
て電極とする電池の製造法において、静電気の防止に効
果があるものであり、静電気の発生にともなう種々の悪
影響を防止するものである。Effects of the Invention As described above, the present invention is effective in preventing static electricity in a method of manufacturing a battery in which an electrode is formed by pressure molding a powdered positive electrode raw material. This is to prevent
なお、正極と負極が別の工程で成形される場合において
は、プロトン性の有機溶媒も使用可能である。電池特性
に悪影響を及ぼす有機溶媒は、電極成形後に加熱乾燥に
より容易に取り除（ことが可能である。Note that when the positive electrode and the negative electrode are molded in separate steps, a protic organic solvent can also be used. Organic solvents that adversely affect battery characteristics can be easily removed by heating and drying after electrode formation.
６一61
Claims (1)
製造法において、比誘電率３０以上の有機溶媒を添加し
た正極原料粉末を使用することを特徴とする電池の製造
法。 ２）有機溶媒としてプロピレンカーボネートを使用する
ことを特徴とする特許請求の範囲第１項記載の電池の製
造法。 ３）有機溶媒としてγ−ブチロラクトンを使用すること
を特徴とする特許請求の範囲第１項記載の電池の製造法
。[Claims] 1) A method for manufacturing a battery in which a powdered positive electrode raw material is pressure-molded to form an electrode, characterized by using a positive electrode raw material powder to which an organic solvent having a dielectric constant of 30 or more is added. Battery manufacturing method. 2) The method for manufacturing a battery according to claim 1, characterized in that propylene carbonate is used as the organic solvent. 3) The method for manufacturing a battery according to claim 1, characterized in that γ-butyrolactone is used as the organic solvent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254609A JPH0815073B2 (en) | 1984-11-30 | 1984-11-30 | Method for manufacturing thermal battery electrodes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59254609A JPH0815073B2 (en) | 1984-11-30 | 1984-11-30 | Method for manufacturing thermal battery electrodes |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61133559A true JPS61133559A (en) | 1986-06-20 |
| JPH0815073B2 JPH0815073B2 (en) | 1996-02-14 |
Family
ID=17267409
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59254609A Expired - Lifetime JPH0815073B2 (en) | 1984-11-30 | 1984-11-30 | Method for manufacturing thermal battery electrodes |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0815073B2 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539132A (en) * | 1978-09-11 | 1980-03-18 | Matsushita Electric Ind Co Ltd | Thermal battery |
| JPS56160773A (en) * | 1980-05-14 | 1981-12-10 | Matsushita Electric Ind Co Ltd | Fuel cell |
| JPS5780666A (en) * | 1980-11-06 | 1982-05-20 | Nec Corp | Lithium battery and its manufacture |
| JPS57176669A (en) * | 1981-04-23 | 1982-10-30 | Toshiba Battery Co Ltd | Manufacture of organic solvent battery |
| JPS59169074A (en) * | 1983-03-16 | 1984-09-22 | Japan Storage Battery Co Ltd | Thermal cell |
-
1984
- 1984-11-30 JP JP59254609A patent/JPH0815073B2/en not_active Expired - Lifetime
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5539132A (en) * | 1978-09-11 | 1980-03-18 | Matsushita Electric Ind Co Ltd | Thermal battery |
| JPS56160773A (en) * | 1980-05-14 | 1981-12-10 | Matsushita Electric Ind Co Ltd | Fuel cell |
| JPS5780666A (en) * | 1980-11-06 | 1982-05-20 | Nec Corp | Lithium battery and its manufacture |
| JPS57176669A (en) * | 1981-04-23 | 1982-10-30 | Toshiba Battery Co Ltd | Manufacture of organic solvent battery |
| JPS59169074A (en) * | 1983-03-16 | 1984-09-22 | Japan Storage Battery Co Ltd | Thermal cell |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0815073B2 (en) | 1996-02-14 |
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