JPS58166634A - Positive electrode for organic solvent cell - Google Patents
Positive electrode for organic solvent cellInfo
- Publication number
- JPS58166634A JPS58166634A JP57048874A JP4887482A JPS58166634A JP S58166634 A JPS58166634 A JP S58166634A JP 57048874 A JP57048874 A JP 57048874A JP 4887482 A JP4887482 A JP 4887482A JP S58166634 A JPS58166634 A JP S58166634A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- organic solvent
- iron
- discharge
- fes2
- 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
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
-
- 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】
〔抛鴫の属する技術分野〕
本発明は有機溶媒電池用正極に係り、特にｌｓ■系有ａ
ＳＳ電池の放電特性、とりわけ放電々圧の平坦性を向上
せしめる正極用活物質に関する。[Detailed Description of the Invention] [Technical field to which Hiroshi belongs] The present invention relates to a positive electrode for an organic solvent battery, and in particular, to a positive electrode for an organic solvent battery.
The present invention relates to a positive electrode active material that improves the discharge characteristics of SS batteries, particularly the flatness of discharge voltage.
負極活物質としてリチウム、ナトリウム等の＠金属を用
いた有機′＃ｌｌＩ＆電池は、エネルギー密度が高く、
広い温度領域で使用することができ、またその貯蔵特性
にもすぐれる、などの場内によって、電卓、時針、メモ
リのバックアップ電源として汎用されている。Organic batteries using metals such as lithium and sodium as negative electrode active materials have high energy density,
Because it can be used in a wide temperature range and has excellent storage properties, it is widely used as a backup power source for calculators, hour hands, and memory.
こＯ有機溶媒電池の抛電責嵩は、負極、電解波、正極か
ら構成されており、一般に負極としてはリチウム、ナト
リウム等の軽金属が用いられ、また電解液としては、プ
ロピレンカーボネート、ｒ−ブチロラクトン、ジメトキ
シエタンなどの有機溶媒中に、過塩素酸リチウム、ホウ
フッ化リチウムなどの電解質を溶解して成る溶液が用い
られているＯ
この有機＃Ｉ＃＆電池において、その正極活物質として
は、３Ｖ系では二酸化マンガン（Ｍ’Ｏｍ ） ｓフッ
化炭素（（ＣＦｘ） ｎ） ；また、１．５Ｖ系にあっ
ては酸化ビスマス（Ｂ輸０．）、酸化鋼（Ｃｕｂ）、硫
化鉄（Ｆｅ Ｓ ）、二硫化鉄（Ｆｅｄ、）などが知ら
れている。This organic solvent battery consists of a negative electrode, an electrolytic wave, and a positive electrode. Generally, light metals such as lithium and sodium are used as the negative electrode, and propylene carbonate and r-butyrolactone are used as the electrolyte. In this organic #I#& battery, a solution made by dissolving an electrolyte such as lithium perchlorate or lithium borofluoride in an organic solvent such as dimethoxyethane is used. In the system, manganese dioxide (M'Om) s fluorocarbon ((CFx) n); In addition, in the 1.5V system, bismuth oxide (B 0.0. ), iron disulfide (Fed, ), etc. are known.
一方、ｌ。Ｓｖ系電池としては、酸化銀電池、アルカリ
マンガン電池が小ａＳＳに広く用いられている。しかし
ながら、酸化銀電池はその放電特性が優れている反面価
格が高（、またアルカリマンガン電池は連続放電時その
放を電圧の平坦性が劣るという問題点がある。On the other hand, l. As Sv-based batteries, silver oxide batteries and alkaline manganese batteries are widely used for small aSS. However, although silver oxide batteries have excellent discharge characteristics, they are expensive (Also, alkaline manganese batteries have the problem of poor discharge voltage flatness during continuous discharge.
したがって、エネルギー密度が轟く、放電特性に優れ、
かつ安価な１．５ｖ系の有４１１１１１１１１．６池の
開発が強く望まれている。Therefore, the energy density is roaring, the discharge characteristics are excellent,
There is a strong desire to develop an inexpensive 1.5V type 411111111.6 pond.
さて、上記した正極活物質を含む正極とリチウム負極と
を組合せたｌ。５ｖ系有機溶媒電池のうち、正極活物質
がＣｕＯ，Ｆｅ８のものはその放電電圧が１．２〜！。Now, a positive electrode containing the above-described positive electrode active material and a lithium negative electrode are combined. Among 5V organic solvent batteries, those whose positive electrode active materials are CuO and Fe8 have a discharge voltage of 1.2~! .
４ｖと１゜６ｖよりやや低く、Ｂ１！ＯｊＯモのは放電
々圧は高いが、電圧平坦性に劣りかつ＾偵である。これ
らに比較してＦ＠勾ｊ環論的な放電容量が大きいため注
目を集めている。4v and 1° slightly lower than 6v, B1! The OjO model has a high discharge voltage, but its voltage flatness is poor and unstable. Compared to these, it is attracting attention because it has a large discharge capacity based on F@gradient ring theory.
しかしながら、Ｐｅ８．を正極活物質とする有機溶媒電
池は、その放電電圧が一般に１゜５ｖより高く、また放
電の進行とともに１放電電圧が２段階に変化してその放
電平坦性に劣るという欠点がある。However, Pe8. An organic solvent battery using C as a positive electrode active material has the disadvantage that its discharge voltage is generally higher than 1.5 V, and that one discharge voltage changes in two stages as discharge progresses, resulting in poor discharge flatness.
この発明は、上記のような欠点を解決するためになされ
たもので、放電々圧の平坦性にすぐれかつ容量密度も大
きい、有機溶媒電池用正極を提供する事を目的とする。This invention was made to solve the above-mentioned drawbacks, and an object thereof is to provide a positive electrode for an organic solvent battery that has excellent flatness of discharge voltage and high capacity density.
本５＃ＡＩ＠の正極は、表面Ｏ少なくとも一部が硫酸鉄
と酸化鉄との温合物である二億化鉄肴末を活物質とする
ことを特徴とする。The positive electrode of this 5#AI@ is characterized in that at least a portion of the surface O is made of iron billion chloride powder, which is a warm mixture of iron sulfate and iron oxide, as an active material.
重置嘴にかかる正極活物質は、従来からｍ物質として用
いられているＦｅ８−粉末を硫酸鉄の尿゛濤液に騙濁し
、その＊＊末をｔ燥、酸化することによりＦ・８１表１
ｉｏ−優に硫酸鉄と酸化鉄とｏｎ合物を付着させる方法
、又は、 Ｆｅ３．ＯＪｌ ＊を空気又は酸素ガス中で
熱処理してＦｅ８．の表面の一部を分解して硫酸鉄との
１舎物にする方法などによって開展す為ことがで會るが
、１４１ｋｔｖ番鳥さという点からして後者０，１７法
が好んで適用される。The positive electrode active material applied to the superimposed beak is made by dispersing Fe8- powder, which has traditionally been used as an m-substance, in a urine solution of iron sulfate, and drying and oxidizing the powder. 1
io-method of adhering iron sulfate, iron oxide, and ON compound, or Fe3. OJl* is heat treated in air or oxygen gas to give Fe8. This method is sometimes developed by decomposing a part of the surface of the iron sulfate and combining it with iron sulfate, but the latter method is preferred from the viewpoint of 141 ktv guard birds. Ru.
後者Ｏ′Ｊ繊にあっては、用いるＦｅ３．粉末Ｏ粒度、
熱処理温度、熱搗履時閾などによって、 Ｆｅ８．の表
面に生成する硫酸鉄と酸化鉄との温金物Ｏ量（Ｆｅ８□
験車貴両Ｏ被榎画稜、厚み等）が変動すｈＯで、これら
条件は一義的には定まらない。例えば、平均ＩＩ盪１０
−園μｇ） Ｆ＠８．＠末を空気中で熱ＩＩ＆思する場
合には、常温よりゆっくり昇温して３０Ｇ −ｙ ４０
００ｆＩＡＪＩ！で４〜５時間時間隔ＩＪＩ＆場を施す
ことが好家しい。いずｋＫしても、装置ｌＩＫがかる洒
−質は、Ｆｅ８．粉末の表面の一部分、好ましくは過半
部が硫酸鉄と酸化鉄とＯ混合物で覆われていることが必
要である。In the case of the latter O'J fiber, Fe3. Powder O particle size,
Fe8. The amount of hot metal O (Fe8□
These conditions cannot be uniquely determined because the test vehicle's surface area (edge, thickness, etc.) varies. For example, the average II
- Sono μg) F@8. If you want to heat the powder in the air, raise the temperature slowly from room temperature to 30G -y 40
00fIAJI! It is recommended to perform IJI & field at 4-5 hour intervals. At any kK, the quality of the device lIK is Fe8. It is necessary that a portion, preferably a majority, of the surface of the powder be covered with the iron sulfate, iron oxide, and O mixture.
本発明の正極は、上記のようにして調製された活物質を
、黒鉛、アセチレンブラック勢の常用の導電材と、ポリ
テトラフロロエチレン、ポリエチレン等の紬着材ととも
に混合した後、所定形状（えばベレット）に成形して得
為Ｃとができる。The positive electrode of the present invention is prepared by mixing the active material prepared as described above with a commonly used conductive material such as graphite or acetylene black, and a pongee material such as polytetrafluoroethylene or polyethylene. It can be molded into a pellet (a pellet) to produce Tokuten C.
このようにして得た正極を用いることＫよって、放電々
圧の平坦性にすぐれかつ放電容量も大壷い１、逍系有機
溶織電池を提供することができる。By using the positive electrode thus obtained, it is possible to provide a carbon-based organic woven battery with excellent flatness of discharge pressure and large discharge capacity.
以下に、本発明を第１図に示した構造の有機溶媒電池に
期して更に詳しく説明す石。Below, the present invention will be explained in more detail with reference to an organic solvent battery having the structure shown in FIG.
実施例
市販のＦｅ８．＠末（平均粒径美声）を空気中にて毎分
５℃の１度で３４０℃まで昇温し、３４０″ＯＫ保った
まま５時間熱処理な行った。逃場ｗｋの粉末駅ＷｉＫは
硫酸鉄と酸化鉄とＯ温合物が生成していることをＸ＠回
折、ＴＡ８Ｃｋによって確認した。得られたＦｅ８．粉
末を９０゜６１１黒鉛粉末７４重量−及びポリテトラフ
ロロエチレン粉末２．０重量−を秤量し、■ミキサーで
温合後直１１５ｍφ、厚さ０．４腸に成形して正極ｌを
造った。Example Commercially available Fe8. The powder (average particle diameter) was heated in air to 340°C at a rate of 5°C per minute, and heat-treated for 5 hours while maintaining 340″ OK. It was confirmed by X@diffraction and TA8Ck that iron, iron oxide, and O temperature mixture was formed.The obtained Fe8. - was weighed, heated in a mixer, and then immediately molded into a shape of 115 mφ and 0.4 mm thick to produce a positive electrode 1.
次いでｊｌ１図に示す如く上記方法で得た正極ｌと金属
リチウム円板よりなる負極２とを１モル濃度の過塩素酸
リチウムが溶解されたプロピレンカーボネートと１，２
−ジメトキシエタンとの混合電解液を含浸させたセパレ
ータ３を介して当接させ、これらをステンレス製の電池
ケース４に装填した後、電池ケース４に負極端子を兼ね
る負極封口板５を端部周縁に設けたガスケットρを介し
て設置し、さらに電池ケース４の開口部を内方向に折り
―げて宵口し直径２０ ｍｍ 、総高１゜６１１１の有
機溶媒電池を組立てた。Next, as shown in Figure 1, the positive electrode 1 obtained by the above method and the negative electrode 2 made of a metallic lithium disk were mixed with propylene carbonate in which 1 molar concentration of lithium perchlorate was dissolved and 1,2
- After making contact through a separator 3 impregnated with a mixed electrolyte with dimethoxyethane and loading them into a stainless steel battery case 4, a negative electrode sealing plate 5 that also serves as a negative electrode terminal is attached to the battery case 4 around the edge of the battery case 4. Then, the opening of the battery case 4 was folded inward to assemble an organic solvent battery with a diameter of 20 mm and a total height of 1°6111 mm.
これを電池人とした。This was called the battery man.
比較のため上記した熱処理を施さないＦｅ８！を用いた
ことを除いては実施例と同様の電池Ｂを作製した。For comparison, Fe8 without the above heat treatment! A battery B was produced in the same manner as in the example except that the battery B was used.
これら２個の電池につき常温１３にΩの定負荷放電特性
を測定したとこ′ろＭ２図に示した結果が得られた。図
中、人は実施例の電池人の放電１線、Ｂは電ｆｉＢの放
電−線をそれぞれ表わす。When the constant load discharge characteristics of these two batteries were measured at room temperature of 13Ω, the results shown in Fig. M2 were obtained. In the figure, numeral 1 represents the first discharge line of the battery of the embodiment, and B represents the discharge line of the electric fiB.
図から明らかなように、本発明の正極を用いた電池人は
、活物質表面が硫酸鉄と酸化鉄の混合物になっていない
Ｆｅｄ、を用いた電池Ｂに比べて放電電圧の平坦性が改
善され、しかもその放電持続時間も長い。As is clear from the figure, the flatness of the discharge voltage of the battery using the positive electrode of the present invention is improved compared to battery B using Fed, which does not have a mixture of iron sulfate and iron oxide on the active material surface. Moreover, the discharge duration is also long.
以上のように本発明の正極を用いると、放電特性にすぐ
れたｌ。５■系有礪溶媒電池を製造することができ、そ
の工業的価値は極めて大で′ある。As described above, when the positive electrode of the present invention is used, the discharge characteristics are excellent. It is possible to produce a 5-type solvent-containing battery, and its industrial value is extremely large.
第１図は本発明を説明するための有機溶媒電池の１例の
縦断面図、第２図は電ａＡ１電池Ｂの連続放電特性を示
す一線である。
ｌ・・・正極、２・・・負極（リチウム円＠）、３・・
・セパレータ（有機電解液を含浸保持）、４・・・電池
ケース、５・・・員Ｉｉ樹口板、６・・・ガスゲット。
代理人 弁履士 則 近 憲 佑 （他ｌ雀）第
１ 図
第 ２ 図
投■丑詩明（時叩FIG. 1 is a longitudinal cross-sectional view of an example of an organic solvent battery for explaining the present invention, and FIG. 2 is a line showing the continuous discharge characteristics of an aA1 battery B. l... Positive electrode, 2... Negative electrode (lithium circle @), 3...
- Separator (impregnated and held with organic electrolyte), 4...Battery case, 5...Member Ii mouth plate, 6...Gas get. Agent: Kensuke Chika, Bento Solicitor (and others) No.
1 Figure 2 Illustration ■Ushishimei (time beat)
Claims (1)
二硫化鉄粉末を活物質とする事を特徴とした有機溶媒電
池用正極。A positive electrode for an organic solvent battery, characterized in that at least a portion of the surface thereof uses iron disulfide powder, which is a mixture of iron sulfate and iron oxide, as an active material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57048874A JPS58166634A (en) | 1982-03-29 | 1982-03-29 | Positive electrode for organic solvent cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57048874A JPS58166634A (en) | 1982-03-29 | 1982-03-29 | Positive electrode for organic solvent cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58166634A true JPS58166634A (en) | 1983-10-01 |
| JPH0368507B2 JPH0368507B2 (en) | 1991-10-28 |
Family
ID=12815428
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57048874A Granted JPS58166634A (en) | 1982-03-29 | 1982-03-29 | Positive electrode for organic solvent cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58166634A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5946508A (en) * | 1996-01-26 | 1999-08-31 | Seiko Epson Corporation | Camera data-projection device |
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-
1982
- 1982-03-29 JP JP57048874A patent/JPS58166634A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5946508A (en) * | 1996-01-26 | 1999-08-31 | Seiko Epson Corporation | Camera data-projection device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0368507B2 (en) | 1991-10-28 |
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