JPS62126556A - Manufacture of nonaqueous solvent battery - Google Patents
Manufacture of nonaqueous solvent batteryInfo
- Publication number
- JPS62126556A JPS62126556A JP60266208A JP26620885A JPS62126556A JP S62126556 A JPS62126556 A JP S62126556A JP 60266208 A JP60266208 A JP 60266208A JP 26620885 A JP26620885 A JP 26620885A JP S62126556 A JPS62126556 A JP S62126556A
- Authority
- JP
- Japan
- Prior art keywords
- manganese dioxide
- ion concentration
- nonaqueous solvent
- lithium ion
- 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.)
- Pending
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
- H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
- H01M4/50—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese
- H01M4/505—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese of mixed oxides or hydroxides containing manganese for inserting or intercalating light metals, e.g. LiMn2O4 or LiMn2OxFy
-
- 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)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、二酸化マンガンを正極活物質とする非水溶媒
電池の製造方法の改良に係るものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to an improvement in a method for manufacturing a non-aqueous solvent battery using manganese dioxide as a positive electrode active material.
従来、非水溶媒電池用二酸化マンガンは、放電性能なら
びに保存性を向上させるために、リチウム、ナトリウム
、カリウムなどのイオンを含む溶液に浸漬したのち、こ
れを加熱処理する方法(特公昭59−31182)が提
案されている。Conventionally, in order to improve discharge performance and storage stability, manganese dioxide for nonaqueous batteries has been immersed in a solution containing ions such as lithium, sodium, and potassium, and then heat-treated (Japanese Patent Publication No. 59-31182). ) has been proposed.
しかし、水酸化ナトリウム、水酸化リチウム等の高濃度
アルカリ溶液は、強アルカリ性のため、二酸化マンガン
の粒子表面が解膠し、膠質物質で覆われてしまい、二酸
化マンガン粒子内部へのリチウムイオンの拡散が抑制さ
れる。また、二酸化マンガン粒子表面の解膠は、浸漬後
の口過操作が著しく困難になるなどの欠点があった。そ
のため、電池においては、貯蔵による性能の劣化が大き
く問題であった。However, since highly concentrated alkaline solutions such as sodium hydroxide and lithium hydroxide are strongly alkaline, the surface of the manganese dioxide particles peptizes and becomes covered with a colloid, which causes lithium ions to diffuse into the interior of the manganese dioxide particles. is suppressed. Furthermore, peptization of the surface of the manganese dioxide particles has the disadvantage that the rinsing operation after immersion becomes extremely difficult. Therefore, in batteries, deterioration in performance due to storage has been a major problem.
本発明は、二酸化マンガンをアルカリ金属を含む水溶液
中で処理し、正極活物質として用いる電池の前述のよう
な欠点を改善するため、種々検討した結果、二酸化マン
ガンをリチウムイオン濃度0.05〜0.2モル/lの
水溶液中で浸漬し、正極活物質に用いることにより貯蔵
後の、電池性能を向上できることを見い出した。In order to improve the above-mentioned drawbacks of batteries that use manganese dioxide as a positive electrode active material by treating manganese dioxide in an aqueous solution containing an alkali metal, the present invention has developed manganese dioxide with a lithium ion concentration of 0.05 to 0. It has been found that battery performance after storage can be improved by immersing it in a .2 mol/l aqueous solution and using it as a positive electrode active material.
以下、本発明の実施例をもとに説明する。 Hereinafter, the present invention will be explained based on examples.
水酸化リチウム(1水塩、Li0H−H,O)濃度を表
1のように調整した6種類のアルカリ溶液を準備し、平
均粒径25μmの二酸化マンガン100gに対し、表1
のアルカリ溶液を10100O加え、表1
60゛Cに加熱しながら、20分攪拌し、r過して10
0°Cで3時間乾燥後、さらに、含有水分を除く目的で
、350°Cで24時間熱処理した。以上のように6種
類のアルカリ溶液について処理した。Six types of alkaline solutions with lithium hydroxide (monohydrate, Li0H-H,O) concentrations adjusted as shown in Table 1 were prepared, and 100 g of manganese dioxide with an average particle size of 25 μm were added as shown in Table 1.
Add 10100O of alkaline solution, stir for 20 minutes while heating to 60°C, filter through r
After drying at 0°C for 3 hours, it was further heat-treated at 350°C for 24 hours to remove moisture content. Six types of alkaline solutions were treated as described above.
上記6種類の処理済み二酸化マンガン100gに黒鉛1
0g、フッ素樹脂粉末2Iを加え、混練し、重量Igで
直径15朋、厚さ1.5朋に成形したものを正極合剤と
した。図面は、電池の縦断面図を示すもので、1は本実
施例により得た正極である。100g of the above six types of treated manganese dioxide and 1 part graphite
A positive electrode mixture was prepared by adding 0 g of fluororesin powder and 2I of fluororesin powder, kneading, and molding the mixture to a weight of Ig, a diameter of 15 mm, and a thickness of 1.5 mm. The drawing shows a longitudinal cross-sectional view of the battery, and numeral 1 indicates the positive electrode obtained in this example.
2はリチウム負極、3はプロピレンカーボネートとジメ
トキシミタンの混合溶媒に過塩素酸リチウムを1モル/
lの割合に溶解した非水電解液を含浸したポリプロピレ
ン不織布からなるセパレータ、4は正極を収納している
ステンレス製の正極缶、5は負極2を収納しているステ
ンレス製の負極蓋、6はポリプロピレン製ガスケットで
ある。2 is a lithium negative electrode, and 3 is a mixed solvent of propylene carbonate and dimethoximitane containing 1 mol/mol of lithium perchlorate.
4 is a stainless steel cathode can housing the cathode, 5 is a stainless steel anode lid housing the anode 2, and 6 is a separator made of a polypropylene nonwoven fabric impregnated with a nonaqueous electrolyte dissolved in a ratio of It is a polypropylene gasket.
以上のような構成で6種類の電池を組み立てだ。Assemble six types of batteries using the configuration shown above.
それぞれの電池について製造直後と60°C1ケ月貯蔵
後とに分け20’CIKΩ連続放電を行い、終止電圧2
.Ovまでの持続時間の平均値を表2に示した。Immediately after manufacture and after storage at 60°C for one month, each battery was subjected to continuous discharge of 20' CIKΩ, and the final voltage was 2.
.. Table 2 shows the average duration until Ov.
表2
表2に示すように、製造直後には差が無いが、60°c
、1ケ月貯蔵後において、N1112〜5の電池は、I
kl 、 6より放電特性に優れている。この理由は、
随2〜5電池についてはリチウムイオンを含む溶液が二
酸化マンガンの内部にまで浸透し、浸漬の効果が大きい
が、N[11の場合には、リチウムイオンの濃度が低す
ぎるために、また、N16の場合には二酸化マンガン粒
子表面の解膠が起り、浸漬の効果が不充分になるためと
考えられる。Table 2 As shown in Table 2, there is no difference immediately after manufacture, but at 60°C
, after storage for one month, the batteries of N1112-5 had I
It has better discharge characteristics than kl and 6. The reason for this is
For batteries No. 2 to 5, the solution containing lithium ions penetrates into the inside of the manganese dioxide, and the immersion effect is large, but in the case of N[11], the concentration of lithium ions is too low, and In this case, peptization of the surface of the manganese dioxide particles occurs, making the immersion effect insufficient.
以上のように、リチウムイオン濃度、0.05〜0.2
モル/βの溶液中で二酸化マンガンを浸漬処理すること
により、非水溶媒電池の貯蔵特性を向上することができ
る。As mentioned above, the lithium ion concentration, 0.05 to 0.2
The storage characteristics of non-aqueous batteries can be improved by immersing manganese dioxide in a solution of mol/β.
図面は本発明の実施例電池の縦断面図である。 The drawing is a longitudinal sectional view of an example battery of the present invention.
Claims (1)
モル/lの水溶液中に浸漬し、正極活物質として使用す
る事を特徴とする非水溶媒電池の製造方法。Manganese dioxide with lithium ion concentration 0.05-0.2
A method for producing a non-aqueous solvent battery, characterized by immersing it in an aqueous solution of mol/l and using it as a positive electrode active material.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60266208A JPS62126556A (en) | 1985-11-28 | 1985-11-28 | Manufacture of nonaqueous solvent battery |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP60266208A JPS62126556A (en) | 1985-11-28 | 1985-11-28 | Manufacture of nonaqueous solvent battery |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS62126556A true JPS62126556A (en) | 1987-06-08 |
Family
ID=17427762
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP60266208A Pending JPS62126556A (en) | 1985-11-28 | 1985-11-28 | Manufacture of nonaqueous solvent battery |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS62126556A (en) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01234330A (en) * | 1988-03-16 | 1989-09-19 | Mitsui Mining & Smelting Co Ltd | Manganese dioxide and its production |
JPH01234331A (en) * | 1988-03-16 | 1989-09-19 | Mitsui Mining & Smelting Co Ltd | Manganic oxide and its production |
US4959282A (en) * | 1988-07-11 | 1990-09-25 | Moli Energy Limited | Cathode active materials, methods of making same and electrochemical cells incorporating the same |
JPH0380121A (en) * | 1989-08-22 | 1991-04-04 | Mitsui Mining & Smelting Co Ltd | Production of manganese dioxide for lithium secondary cell |
JPH0380120A (en) * | 1989-08-22 | 1991-04-04 | Mitsui Mining & Smelting Co Ltd | Production of manganese dioxide for lithium primary cell |
JPH0389422U (en) * | 1989-12-26 | 1991-09-12 | ||
US5698176A (en) * | 1995-06-07 | 1997-12-16 | Duracell, Inc. | Manganese dioxide for lithium batteries |
US6929788B2 (en) * | 1999-12-15 | 2005-08-16 | Lg Chemical Co., Ltd. | Method for preparing lithium manganese spinel oxide having improved electrochemical performance |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5673864A (en) * | 1979-11-20 | 1981-06-18 | Matsushita Electric Ind Co Ltd | Manufacture of alkaline battery |
-
1985
- 1985-11-28 JP JP60266208A patent/JPS62126556A/en active Pending
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5673864A (en) * | 1979-11-20 | 1981-06-18 | Matsushita Electric Ind Co Ltd | Manufacture of alkaline battery |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH01234330A (en) * | 1988-03-16 | 1989-09-19 | Mitsui Mining & Smelting Co Ltd | Manganese dioxide and its production |
JPH01234331A (en) * | 1988-03-16 | 1989-09-19 | Mitsui Mining & Smelting Co Ltd | Manganic oxide and its production |
US4959282A (en) * | 1988-07-11 | 1990-09-25 | Moli Energy Limited | Cathode active materials, methods of making same and electrochemical cells incorporating the same |
WO1991011032A1 (en) * | 1988-07-11 | 1991-07-25 | Moli Energy Limited | Cathode active materials, methods of making same and electrochemical cells incorporating the same |
JPH0380121A (en) * | 1989-08-22 | 1991-04-04 | Mitsui Mining & Smelting Co Ltd | Production of manganese dioxide for lithium secondary cell |
JPH0380120A (en) * | 1989-08-22 | 1991-04-04 | Mitsui Mining & Smelting Co Ltd | Production of manganese dioxide for lithium primary cell |
JPH0389422U (en) * | 1989-12-26 | 1991-09-12 | ||
US5698176A (en) * | 1995-06-07 | 1997-12-16 | Duracell, Inc. | Manganese dioxide for lithium batteries |
US5863675A (en) * | 1995-06-07 | 1999-01-26 | Duracell, Inc | Manganese dioxide for lithium batteries |
US6929788B2 (en) * | 1999-12-15 | 2005-08-16 | Lg Chemical Co., Ltd. | Method for preparing lithium manganese spinel oxide having improved electrochemical performance |
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