JPH0213424B2 - - Google Patents
Info
- Publication number
- JPH0213424B2 JPH0213424B2 JP55177568A JP17756880A JPH0213424B2 JP H0213424 B2 JPH0213424 B2 JP H0213424B2 JP 55177568 A JP55177568 A JP 55177568A JP 17756880 A JP17756880 A JP 17756880A JP H0213424 B2 JPH0213424 B2 JP H0213424B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- battery
- manganese dioxide
- active material
- electrode active
- 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
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 claims description 26
- YADSGOSSYOOKMP-UHFFFAOYSA-N dioxolead Chemical compound O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 10
- 239000005486 organic electrolyte Substances 0.000 claims description 5
- 150000001875 compounds Chemical class 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000011149 active material Substances 0.000 claims 2
- 239000007774 positive electrode material Substances 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- 229910052744 lithium Inorganic materials 0.000 description 3
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 2
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 2
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 2
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 229910001507 metal halide Inorganic materials 0.000 description 1
- 150000005309 metal halides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 229910052976 metal sulfide Inorganic materials 0.000 description 1
- 239000004570 mortar (masonry) Substances 0.000 description 1
- 239000007773 negative electrode material Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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
- H01M4/502—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of manganese for non-aqueous cells
-
- 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)
Description
【発明の詳細な説明】
本発明はリチウム、ナトリウム等の軽金属を負
極活物質とし、プロピレンカーボネイト、ジメト
キシエタン、γ−ブチロラクトン等の単独又は混
合した溶媒中に溶質として過塩素酸リチウム、ホ
ウフツ化リチウム等を溶解した有機電解質を用い
る有機電解質電池に関するものであつて、特に正
極の改良に係る。Detailed Description of the Invention The present invention uses a light metal such as lithium or sodium as a negative electrode active material, and uses lithium perchlorate or lithium borofluoride as a solute in a solvent such as propylene carbonate, dimethoxyethane, γ-butyrolactone, etc. alone or in combination. The present invention relates to an organic electrolyte battery using an organic electrolyte in which such materials are dissolved, and particularly relates to improvements in positive electrodes.
従来よりこの種電池の正極活物質としては、二
酸化マンガン、二酸化鉛等の金属酸化物を始めと
して金属のハロゲン化物、金属の硫化物等が提案
されている。 Conventionally, as positive electrode active materials for this type of battery, metal oxides such as manganese dioxide and lead dioxide, as well as metal halides, metal sulfides, and the like have been proposed.
本発明はこの種電池の放電容量の増大を目的と
し、二酸化マンガンと二酸化鉛とを混合熱処理し
たるものを正極活物質とすることを特徴とする。 The present invention aims to increase the discharge capacity of this type of battery, and is characterized in that the positive electrode active material is a mixture of manganese dioxide and lead dioxide subjected to heat treatment.
以下本発明の一実施例を詳述する。 An embodiment of the present invention will be described in detail below.
正極の作成：
二酸化マンガン87ｇと二酸化鉛10ｇを乳鉢で２
時間十分に混合し、この混合物を250〜400℃で５
時間熱処理した後、粉砕して200メツシユパスを
行なつたものを正極活物質とする。Creating the positive electrode: 87g of manganese dioxide and 10g of lead dioxide in a mortar
Mix well for 5 hours and heat the mixture at 250-400℃ for 5 hours.
After being heat-treated for a period of time, the material was crushed and subjected to 200 mesh passes to be used as a positive electrode active material.
この正極活物質粉末90重量部に導電剤６重量
部、結着剤４重量部を加え混合して正極合剤と
し、この合剤を成型圧３トン／cm2で直径20φの導
電リング内に加圧成型したのち、更に300℃で真
空乾燥して正極とする。 6 parts by weight of a conductive agent and 4 parts by weight of a binder are added to 90 parts by weight of this positive electrode active material powder, mixed to form a positive electrode mixture, and this mixture is molded into a conductive ring with a diameter of 20φ at a molding pressure of 3 tons/cm 2. After pressure molding, it is further vacuum dried at 300°C to form a positive electrode.
負極はリチウム圧延板を直径20φに打抜いたも
のを用い、又電解質はプロピレンカーボネイトと
ジメトキシエタンとの混合溶媒に１モル濃度の過
塩素酸リチウムを溶解したものであり、セパレー
タはポリプロピレン不織布を用いて外径25φ、高
さ2.8mmの電池を作成した。 The negative electrode was a lithium rolled plate punched out to a diameter of 20φ, the electrolyte was a mixture of propylene carbonate and dimethoxyethane dissolved in lithium perchlorate at a concentration of 1 molar, and the separator was a polypropylene nonwoven fabric. A battery with an outer diameter of 25φ and a height of 2.8mm was created.
図は本発明電池と比較電池との室温下における
5.6KΩ定負荷放電特性比較図であり、図中Ａは
本発明電池、Ｂ及びＣは夫々正極活物質として二
酸化マンガン単独及び二酸化鉛単独を用いた比較
電池、又Ｄは二酸化マンガンと二酸化鉛とを混合
し熱処理を施さない混合物を正極活物質として用
いた比較電池である。 The figure shows the difference between the inventive battery and the comparative battery at room temperature.
This is a comparison diagram of 5.6KΩ constant load discharge characteristics, in which A is a battery of the present invention, B and C are comparison batteries using manganese dioxide alone and lead dioxide alone as positive electrode active materials, and D is a comparison battery using manganese dioxide and lead dioxide as positive electrode active materials, respectively. This is a comparative battery in which a mixture of the following and without heat treatment was used as the positive electrode active material.
図より明白なるように本発明電池Ａに依れば、
二酸化マンガン単独の場合よりも若干放電々圧が
低いものの放電容量が増大している。又比較電池
Ｄのように例え二酸化マンガンと二酸化鉛との混
合系であつても熱処理を施さなかつたものでは、
先づ二酸化マンガンが放電し、放電終了後二酸化
鉛が放電する如く２段の放電特性を示すことにな
る。 As is clear from the figure, according to the battery A of the present invention,
Although the discharge pressure is slightly lower than in the case of manganese dioxide alone, the discharge capacity is increased. In addition, even if it is a mixed system of manganese dioxide and lead dioxide like comparative battery D, it does not undergo heat treatment.
First, manganese dioxide is discharged, and after the discharge is completed, lead dioxide is discharged, so that a two-stage discharge characteristic is exhibited.
これに対して、本発明電池に依れば、正極活物
質が二酸化マンガンと二酸化鉛とを混合熱処理し
たものであるため、二酸化マンガンと二酸化鉛と
の化合物であるMnxPbyOz（例えば
MnPbMn6O14）が形成され、二酸化マンガンの
結晶構造がゆがめられることになる。その結果リ
チウムイオンの正極中での拡散が容易に行なわれ
ることにより放電特性が向上するものと考えられ
る。 On the other hand, according to the battery of the present invention, since the positive electrode active material is a heat-treated mixture of manganese dioxide and lead dioxide, MnxPbyOz, which is a compound of manganese dioxide and lead dioxide (e.g.
MnPbMn 6 O 14 ) will be formed and the crystal structure of manganese dioxide will be distorted. As a result, it is thought that lithium ions are easily diffused in the positive electrode, thereby improving the discharge characteristics.
尚、熱処理した場合、全てが前述の化合物
MnxPbyOzになるか或いは一部がMnO2の状態で
残る場合が想定されるが、図中の本発明電池特性
における放電末期の容量増大の効果は化合物
MnxPbyOzによるものと考えられる。 In addition, when heat-treated, all of the above-mentioned compounds
It is assumed that MnxPbyOz may be formed or a portion may remain as MnO 2 , but the effect of capacity increase at the end of discharge on the battery characteristics of the present invention shown in the figure is due to the compound
This is thought to be caused by MnxPbyOz.
以上詳述したように有機電解質電池において、
正極活物質として二酸化マンガンと二酸化鉛とを
混合熱処理したるものを用いることにより、単独
系に比して放電容量を増大しうるものであり、そ
の工業的価値は極めて大である。 As detailed above, in organic electrolyte batteries,
By using a heat-treated mixture of manganese dioxide and lead dioxide as the positive electrode active material, the discharge capacity can be increased compared to a single system, and its industrial value is extremely large.
図面は本発明電池と比較電池との放電特性比較
図である。
Ａ……本発明電池、Ｂ，Ｃ，Ｄ……比較電池。
The drawing is a comparison diagram of discharge characteristics between a battery of the present invention and a comparative battery. A: Batteries of the present invention, B, C, D: Comparative batteries.
Claims (1)
電解質とからなり、前記正極の活物質が二酸化マ
ンガンと二酸化鉛とを混合熱処理して得た化合物
よりなることを特徴とする有機電解質電池。1. An organic electrolyte battery comprising a negative electrode using a light metal as an active material, a positive electrode, and an organic electrolyte, wherein the active material of the positive electrode is a compound obtained by heat-treating a mixture of manganese dioxide and lead dioxide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55177568A JPS57101347A (en) | 1980-12-15 | 1980-12-15 | Organic electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP55177568A JPS57101347A (en) | 1980-12-15 | 1980-12-15 | Organic electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57101347A JPS57101347A (en) | 1982-06-23 |
| JPH0213424B2 true JPH0213424B2 (en) | 1990-04-04 |
Family
ID=16033236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP55177568A Granted JPS57101347A (en) | 1980-12-15 | 1980-12-15 | Organic electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57101347A (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56165268A (en) * | 1980-05-23 | 1981-12-18 | Matsushita Electric Ind Co Ltd | Alkaline primary battery |
-
1980
- 1980-12-15 JP JP55177568A patent/JPS57101347A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56165268A (en) * | 1980-05-23 | 1981-12-18 | Matsushita Electric Ind Co Ltd | Alkaline primary battery |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57101347A (en) | 1982-06-23 |
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