JPH0221567A - Nonaqueous electrolyte battery - Google Patents
Nonaqueous electrolyte batteryInfo
- Publication number
- JPH0221567A JPH0221567A JP63171242A JP17124288A JPH0221567A JP H0221567 A JPH0221567 A JP H0221567A JP 63171242 A JP63171242 A JP 63171242A JP 17124288 A JP17124288 A JP 17124288A JP H0221567 A JPH0221567 A JP H0221567A
- Authority
- JP
- Japan
- Prior art keywords
- lithium
- active material
- nonaqueous electrolyte
- electrolyte battery
- battery
- 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
- H01M6/00—Primary cells; Manufacture thereof
- H01M6/14—Cells with non-aqueous electrolyte
- H01M6/16—Cells with non-aqueous electrolyte with organic electrolyte
-
- 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
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Primary Cells (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明はリチウム又はリチウム合金を活物質とする負極
と、二酸化マンガンを活物質とする正極と、液状有機電
解質とを備えた非水電解液電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a nonaqueous electrolyte battery comprising a negative electrode using lithium or a lithium alloy as an active material, a positive electrode using manganese dioxide as an active material, and a liquid organic electrolyte. It is something.
従来の技術
非水電解液電池の正極活物質としては金属酸化物、硫化
物、塩化物など種々のものが提案されているがその中で
も特に二酸化マンガンは安価であることから経済性に富
み既に実用化されている。Conventional technology A variety of materials have been proposed as positive electrode active materials for non-aqueous electrolyte batteries, including metal oxides, sulfides, and chlorides. Among these, manganese dioxide is particularly economical due to its low cost and is already in practical use. has been made into
又、液状有機電解質については、特開昭６７−４３３６
４号公報に、プロピレンカーボネート（ＰＣ）およびジ
メトキシエタン（ＤＭＥ ）の混合溶媒中にリチウムト
リフルオロメタンスルホネ−ト（ＬｉＧＦ、５ｏ３）を
溶解した液状有機電解質が、特開昭６９−８７７７２号
公報にプロピレンカーボネート（ｐｃ）、ジメトキシエ
タン（ＤＭＥ）およびテトラハイドロフラン（ＴＨＦ）
の３成分系混合溶媒に、過塩素酸リチウム（Ｌｉ０ｇＯ
４）を溶解した液状有機電解質が提案されている。Regarding liquid organic electrolytes, Japanese Patent Application Laid-Open No. 67-4336
4, a liquid organic electrolyte in which lithium trifluoromethanesulfonate (LiGF, 5o3) is dissolved in a mixed solvent of propylene carbonate (PC) and dimethoxyethane (DME) is disclosed in JP-A-69-87772. Propylene carbonate (pc), dimethoxyethane (DME) and tetrahydrofuran (THF)
Lithium perchlorate (Li0gO
A liquid organic electrolyte in which 4) is dissolved has been proposed.
発明が解決しようとする課題
特開昭５７−４３３６４号公報の有機電解質の場合、低
温時の放電特性に問題があり、特開昭６９−８７７７２
号公報の有機電解質の場合には、安全性に問題があった
。Problems to be Solved by the Invention In the case of the organic electrolyte disclosed in JP-A No. 57-43364, there is a problem in discharge characteristics at low temperatures;
In the case of the organic electrolyte disclosed in the publication, there were safety problems.
近年に至っては、高電圧、高エネルギー密度を有するこ
とから非水電解液電池の普及はめざましく、それに伴っ
てこの種電池の低温放電特性、安全性の改善が要望され
ている。In recent years, non-aqueous electrolyte batteries have become rapidly popular due to their high voltage and high energy density, and there has been a demand for improvements in the low-temperature discharge characteristics and safety of these batteries.
課題を解決するだめの手段
この問題を解決するために本発明は、リチウム又はリチ
ウム合金を活物質とする負極と、二酸化マンガンを活物
質とする正極と、液状有機電解質とで構成される非水電
解液電池において、液状有機電解質としてプロピレンカ
ーボネート、ジメトキ／エタン及びテトラハイドロフラ
ンの混合溶媒中にリチウムトリフルオロメタンスルホネ
ートを溶解した電解質を使用したものである。Means for Solving the Problem In order to solve this problem, the present invention provides a non-aqueous electrolyte comprising a negative electrode using lithium or a lithium alloy as an active material, a positive electrode using manganese dioxide as an active material, and a liquid organic electrolyte. The electrolyte battery uses an electrolyte in which lithium trifluoromethanesulfonate is dissolved in a mixed solvent of propylene carbonate, dimethoxy/ethane, and tetrahydrofuran as a liquid organic electrolyte.
作用
この構成によれば、リチウムー二酸化マンガン系非水電
解液電池の低温放電特性及び安全性を向上することがで
きる。この理由は定かでないが。Effect: According to this configuration, the low-temperature discharge characteristics and safety of the lithium-manganese dioxide-based nonaqueous electrolyte battery can be improved. The reason for this is not certain.
低沸点のテトラハイドロフランと低粘度のリチウムトリ
フルオロメタンスルホネートとの相乗効果によるものと
思われる。This is thought to be due to the synergistic effect of low boiling point tetrahydrofuran and low viscosity lithium trifluoromethanesulfonate.
実施例 以下本発明の一実施例につき詳述する。Example An embodiment of the present invention will be described in detail below.
負極としてリチウム圧延板を所定寸法に裁断したものを
用い、また正極として二酸化マンガン（活物質）と、カ
ーボン粉末（導電剤）と、フッ素樹脂粉末（結着剤）と
を８５：１０：６の重量比で混合したのちこの混合物を
成型し熱処理したものを用いた。A rolled lithium plate cut to a specified size was used as the negative electrode, and manganese dioxide (active material), carbon powder (conductive agent), and fluororesin powder (binder) were mixed in a ratio of 85:10:6 as the positive electrode. After mixing in a weight ratio, this mixture was molded and heat treated to be used.
上記の正、負極及びポリピロピレン製不織布よりなるセ
パレータと共に下表に組成の非水電解質を用いて、円筒
型非水電解液電池を組立てた。A cylindrical nonaqueous electrolyte battery was assembled using the above positive and negative electrodes and a separator made of a polypropylene nonwoven fabric, as well as a nonaqueous electrolyte having the composition shown in the table below.
尚、溶媒は等容積比で混合したものを用いた。The solvents used were mixed at equal volume ratios.
上表の非水電解質ａ、ｂをそれぞれ用いた電池ム、Ｂの
、−３０℃の低温下における放電特性を第１図に示す。FIG. 1 shows the discharge characteristics of batteries B using non-aqueous electrolytes a and b shown in the above table at a low temperature of -30°C.
尚、放電条件は９０ｏｎ人定電流で３秒ＯＮ、２７秒Ｏ
ＦＦを繰返す連続パルス放電とした。この結果から明白
なように本発明による電池人によれば電池Ｂに比して低
温下における放電特性が優れていることがわかる。また
、非水電解質ａ、ｃをそれぞれ用いた電池ム、Ｃをそれ
ぞれ、１人の定電流過放電試験した場合の外観上の変化
を下表に示す。In addition, the discharge conditions are 90on constant current, 3 seconds ON, 27 seconds O.
This was a continuous pulse discharge that repeated FF. As is clear from these results, the battery according to the present invention has superior discharge characteristics at low temperatures compared to battery B. In addition, the table below shows changes in appearance when batteries M and C using non-aqueous electrolytes a and c were respectively subjected to a constant current overdischarge test by one person.
合金、正極活物質に二酸化マンガンを用いる非水電解液
電池において、その工業的価値は極めて犬である。In non-aqueous electrolyte batteries that use manganese dioxide as the alloy and positive electrode active material, its industrial value is extremely high.
第１図は、−３０℃の低温下における放電特性を示す図
である。
代理人の氏名 弁理士 粟 野 重 孝 ほか１名この
結果から明白なように本発明による電池ムによれば電池
Ｃに比して過放電時の安全性が優れていることがわかる
。
発明の効果FIG. 1 is a diagram showing discharge characteristics at a low temperature of -30°C. Name of agent: Patent attorney Shigetaka Awano and one other person As is clear from these results, it can be seen that the battery according to the present invention has superior safety during overdischarge compared to battery C. Effect of the invention
Claims (1)
酸化マンガン活物質とする正極と、プロピレンカーボネ
ート、ジメトキシエタンおよびテトラハイドロフランの
混合溶媒中にリチウムトリフルオロメタンスルホネート
を溶解した液状有機電解質とを備えた非水電解液電池。A non-containing battery comprising a negative electrode made of lithium or a lithium alloy as an active material, a positive electrode made of manganese dioxide active material, and a liquid organic electrolyte in which lithium trifluoromethanesulfonate is dissolved in a mixed solvent of propylene carbonate, dimethoxyethane and tetrahydrofuran. Water electrolyte battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171242A JPH0221567A (en) | 1988-07-08 | 1988-07-08 | Nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63171242A JPH0221567A (en) | 1988-07-08 | 1988-07-08 | Nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0221567A true JPH0221567A (en) | 1990-01-24 |
Family
ID=15919678
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63171242A Pending JPH0221567A (en) | 1988-07-08 | 1988-07-08 | Nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0221567A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01236580A (en) * | 1988-03-17 | 1989-09-21 | Sanyo Electric Co Ltd | Non-aqueous electrolyte battery |
| JPH01272053A (en) * | 1988-04-22 | 1989-10-31 | Hitachi Maxell Ltd | Organic electrolyte cell |
-
1988
- 1988-07-08 JP JP63171242A patent/JPH0221567A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01236580A (en) * | 1988-03-17 | 1989-09-21 | Sanyo Electric Co Ltd | Non-aqueous electrolyte battery |
| JPH01272053A (en) * | 1988-04-22 | 1989-10-31 | Hitachi Maxell Ltd | Organic electrolyte cell |
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