JPH0362456A - Battery - Google Patents
BatteryInfo
- Publication number
- JPH0362456A JPH0362456A JP1197453A JP19745389A JPH0362456A JP H0362456 A JPH0362456 A JP H0362456A JP 1197453 A JP1197453 A JP 1197453A JP 19745389 A JP19745389 A JP 19745389A JP H0362456 A JPH0362456 A JP H0362456A
- Authority
- JP
- Japan
- Prior art keywords
- collector
- battery
- mno2
- positive electrode
- electrodeposition
- 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
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical group O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims abstract description 24
- 229910052751 metal Inorganic materials 0.000 claims abstract description 5
- 239000002184 metal Substances 0.000 claims abstract description 5
- 239000010409 thin film Substances 0.000 claims abstract description 5
- 229920006254 polymer film Polymers 0.000 claims abstract description 3
- 238000004070 electrodeposition Methods 0.000 abstract description 4
- 238000012856 packing Methods 0.000 abstract description 2
- 239000011149 active material Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000005486 organic electrolyte Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000002659 electrodeposit Substances 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 238000010884 ion-beam technique Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229940099596 manganese sulfate Drugs 0.000 description 1
- 235000007079 manganese sulphate Nutrition 0.000 description 1
- 239000011702 manganese sulphate Substances 0.000 description 1
- SQQMAOCOWKFBNP-UHFFFAOYSA-L manganese(II) sulfate Chemical compound [Mn+2].[O-]S([O-])(=O)=O SQQMAOCOWKFBNP-UHFFFAOYSA-L 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 239000007784 solid electrolyte Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
Classifications
-
- 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
- Cell Electrode Carriers And Collectors (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、正極に二酸化マンガンを用いる薄型電池に関
するものである。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a thin battery using manganese dioxide as a positive electrode.
従来技術とその問題点
近年、電子機器の薄型化に伴い、フィルム状の薄型電池
が提案されている。電池の放電電圧、放電持続時間等の
特性を向上させるためには、正極の活物質の密度を上げ
ることが極めて重要である。従来電池の正極の組成は、
活物質と、カーボンのような導電剤及び固体有機電解質
を混合したものであり、正極に占める活物質の体積は、
４０％程度であり、残りの６０％は電池の起電反応に寄
与しないものであった。従って、体積、重量におけるロ
スが大であり、電池の薄型化には問題であった。Prior Art and its Problems In recent years, as electronic devices have become thinner, thin film batteries have been proposed. In order to improve battery characteristics such as discharge voltage and discharge duration, it is extremely important to increase the density of the active material of the positive electrode. The composition of the positive electrode of conventional batteries is
It is a mixture of an active material, a conductive agent such as carbon, and a solid organic electrolyte, and the volume of the active material in the positive electrode is
The remaining 60% did not contribute to the electromotive reaction of the battery. Therefore, there is a large loss in volume and weight, which poses a problem in making the battery thinner.
発明の目的
本発明は、従来の問題点に鑑みなされたものであり、エ
ネルギー密度の高い、薄型電池を提供することを目的と
するものである。OBJECTS OF THE INVENTION The present invention was made in view of the conventional problems, and it is an object of the present invention to provide a thin battery with high energy density.
発明の構成
本発明は上記目的を達成するべく、集電体に二酸化マン
ガンを電着した正極を用いたことを特徴゛とする電池で
ある。Structure of the Invention In order to achieve the above object, the present invention is a battery characterized by using a positive electrode in which manganese dioxide is electrodeposited on a current collector.
又、集電体が耐熱性を有する高分子フィルムに金属薄膜
を形成した前記の電池である。In addition, the current collector is the above-mentioned battery in which a metal thin film is formed on a heat-resistant polymer film.
作 用
集電体上に直接、二酸化マンガンを電着することにより
、集電体と活物質の密着性が向上するので、界面の接触
抵抗が小さくなる。又、単位容積当たりの二酸化マンガ
ンの充填密度が大きくなるので、従来の正極に比べて厚
みを１７２以下とすることができる。Function: Electrodeposition of manganese dioxide directly onto the current collector improves the adhesion between the current collector and the active material, thereby reducing the contact resistance at the interface. Furthermore, since the packing density of manganese dioxide per unit volume is increased, the thickness can be reduced to 172 mm or less compared to conventional positive electrodes.
実施例 以下、本発明の実施例により説明する。Example The present invention will be explained below using examples.
実施例１
ポリイミドフィルム（耐熱３５０℃）の表面に、チタン
を厚さ３μｍ蒸着したものを、電極として硫酸マンガン
１ｍｏｌ／ Ｑ 、硫酸１ｍｏｌ／ｆｆｉを含む溶液中
で３００分間通電、電極上に２０μ鳳の厚さに二酸化マ
ンガンを電着した。この後、３２０℃で３時間、乾燥炉
中で水分を除去して電池の正極とし、この正極と厚み２
０μｍの有機固体電解質及び厚み１０μｍの金属リチウ
ムを重ね合わせて、シート状のリチウム電池を製造した
。Example 1 Titanium was vapor-deposited to a thickness of 3 μm on the surface of a polyimide film (heat resistant to 350° C.), and energized for 300 minutes in a solution containing 1 mol/Q of manganese sulfate and 1 mol/ffi of sulfuric acid as an electrode, and a 20 μm film was placed on the electrode. Manganese dioxide was electrodeposited to a thickness of . After this, moisture was removed in a drying oven at 320°C for 3 hours to form a positive electrode for the battery.
A sheet-shaped lithium battery was manufactured by stacking a 0 μm thick organic solid electrolyte and a 10 μm thick metal lithium.
実施例２
厚み１０μｍの鉛箔を電極として、実施例１と同じ液組
成の溶液中で１５分間通電し、電極上に１０μ−の二酸
化マンガンを電着した。この後、３００℃で４時間、乾
燥炉中で水分を除去したものを正極として、実施例１と
同様の方法により、シート状のリチウム電池を製造した
。Example 2 A lead foil having a thickness of 10 μm was used as an electrode, and electricity was applied for 15 minutes in a solution having the same liquid composition as in Example 1 to electrodeposit 10 μm of manganese dioxide on the electrode. Thereafter, a sheet-shaped lithium battery was manufactured in the same manner as in Example 1 using the positive electrode as the positive electrode after removing moisture in a drying oven at 300° C. for 4 hours.
本発明の電着法による正極を用いて、電池寸法４０■Ｘ
４０ａ＋ｍ、厚み ０．１ｆｆｌＩ１１ノ薄型ＩＪ
チ’） ム電池を製造した結果、容積エネルギー密度は
３１０Ｗｈ／ｅが得られた。従来の方法による正極（二
酸化マンガンとカーボン及び固体有機電解質を混合した
もの）を用いた、同一寸法の電池の容積エネルギー密度
は、２００Ｗｈｉであった。Using the positive electrode formed by the electrodeposition method of the present invention, the battery size is 40×
40a+m, thickness 0.1fflI11 thin IJ
As a result of manufacturing the battery, a volumetric energy density of 310 Wh/e was obtained. The volumetric energy density of a battery of the same size using a conventional positive electrode (mixed manganese dioxide, carbon and solid organic electrolyte) was 200 Whi.
本発明によれば、従来に比べて、エネルギー密度の高い
薄型電池が得られた。According to the present invention, a thin battery with higher energy density than conventional batteries was obtained.
尚、金属薄膜を形成する方法は、蒸着法だけでなく、ス
パッタリング法、イオンブレーティング法、イオンビー
ム蒸着法等を用いてもよい。Note that the method for forming the metal thin film is not limited to the vapor deposition method, but may also be a sputtering method, an ion blating method, an ion beam evaporation method, or the like.
発明の効果
上述した如く、本発明はエネルギー密度の高い、薄型電
池を提供することが出来るので、その工業的価値は極め
て大である。Effects of the Invention As described above, the present invention can provide a thin battery with high energy density, and therefore has extremely great industrial value.
Claims (2)
ことを特徴とする電池。(1) A battery characterized by using a positive electrode in which manganese dioxide is electrodeposited on a current collector.
膜を形成した請求項１記載の電池。(2) The battery according to claim 1, wherein the current collector is a heat-resistant polymer film with a metal thin film formed thereon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1197453A JPH0362456A (en) | 1989-07-28 | 1989-07-28 | Battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1197453A JPH0362456A (en) | 1989-07-28 | 1989-07-28 | Battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0362456A true JPH0362456A (en) | 1991-03-18 |
Family
ID=16374763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1197453A Pending JPH0362456A (en) | 1989-07-28 | 1989-07-28 | Battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0362456A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262987A (en) * | 1994-03-25 | 1995-10-13 | Sanyo Electric Co Ltd | Hydrogen storage alloy electrode |
| JP2002042790A (en) * | 2000-07-27 | 2002-02-08 | Denso Corp | Method for manufacturing battery electrode and device for manufacturing battery electrode |
| JP2013506304A (en) * | 2009-10-02 | 2013-02-21 | ニューカッスル イノベ−ション リミテッド | Super capacitor electrode |
-
1989
- 1989-07-28 JP JP1197453A patent/JPH0362456A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07262987A (en) * | 1994-03-25 | 1995-10-13 | Sanyo Electric Co Ltd | Hydrogen storage alloy electrode |
| JP2002042790A (en) * | 2000-07-27 | 2002-02-08 | Denso Corp | Method for manufacturing battery electrode and device for manufacturing battery electrode |
| JP2013506304A (en) * | 2009-10-02 | 2013-02-21 | ニューカッスル イノベ−ション リミテッド | Super capacitor electrode |
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