JPH067492B2 - Non-aqueous electrolyte battery - Google Patents
Non-aqueous electrolyte batteryInfo
- Publication number
- JPH067492B2 JPH067492B2 JP60162482A JP16248285A JPH067492B2 JP H067492 B2 JPH067492 B2 JP H067492B2 JP 60162482 A JP60162482 A JP 60162482A JP 16248285 A JP16248285 A JP 16248285A JP H067492 B2 JPH067492 B2 JP H067492B2
- Authority
- JP
- Japan
- Prior art keywords
- battery
- solvent
- aqueous electrolyte
- present
- viscosity
- 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
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
- H01M6/162—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte
- H01M6/164—Cells with non-aqueous electrolyte with organic electrolyte characterised by the electrolyte by the solvent
-
- 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)
Description
【発明の詳細な説明】 (イ) 産業上の利用分野 本発明はリチウム或いはリチウム合金を活物質とする負
極と、金属の酸化物、硫化物、ハロゲン化物などを活物
質とする正極と、溶媒と溶質とからなる非水電解液とを
備えた非水電解液電池に関するものである。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to a negative electrode using lithium or a lithium alloy as an active material, a positive electrode using metal oxide, sulfide, halide, etc. as an active material, and a solvent. The present invention relates to a non-aqueous electrolyte battery including a non-aqueous electrolyte solution including a solute and a solute.
(ロ) 従来の技術 この種電池に用いられる非水電解液を構成する溶媒及び
溶質としては例えば特公昭45-40041号公報或いは特公昭
57-32866号公報などに開示されているように種々のもの
が提案されている。具体的には高粘度溶媒としてプロピ
レンカーボネート、γ−ブチロラクトン、スルホラン、
エチレンカーボネートなど、低粘度溶媒としてジメトキ
シエタン、ジオキソラン、テトラハイドロフランなど、
又溶質として過塩素酸リチウム、ホウフッ化リチウムな
どが知られている。(B) Conventional technology Examples of solvents and solutes constituting the non-aqueous electrolyte used in this type of battery include, for example, Japanese Patent Publication No. 45-40041 or Japanese Patent Publication
Various types have been proposed as disclosed in Japanese Patent Publication No. 57-32866. Specifically, as a high-viscosity solvent, propylene carbonate, γ-butyrolactone, sulfolane,
Low-viscosity solvents such as ethylene carbonate, dimethoxyethane, dioxolane, tetrahydrofuran, etc.
Also known as solutes are lithium perchlorate and lithium borofluoride.
さて、近年に至ってはこの種の電池の適用分野の拡大に
伴い電池特性の改善が要望されており、その一つとして
保存特性の向上が望まれている。Now, in recent years, with the expansion of application fields of this type of battery, improvement in battery characteristics has been demanded, and as one of them, improvement in storage characteristics is desired.
ところで、電導度及びイオンの拡散の観点から、高率放
電に適した溶媒としては高誘電率で且低粘度であること
が望まれるが、一般に高誘電率の溶媒は粘度が高く、低
粘度の溶媒は誘電率が低い。そこで高粘度溶媒と低粘度
溶媒とを混合することにより、高誘電率で且低粘度の溶
媒が得られる可能性がある。しかしジメトキエタン、ジ
オキソラン、テトラハイドロフランなどの低粘度溶媒は
負極活物質であるリチウムと反応したり、電池外に蒸発
逸散する傾向があり、その結果として保存特性に問題が
あった。From the viewpoint of conductivity and diffusion of ions, a solvent suitable for high-rate discharge is desired to have a high dielectric constant and a low viscosity. Generally, a solvent having a high dielectric constant has a high viscosity and a low viscosity. The solvent has a low dielectric constant. Therefore, there is a possibility that a solvent having a high dielectric constant and a low viscosity can be obtained by mixing a high viscosity solvent and a low viscosity solvent. However, low-viscosity solvents such as dimethoethane, dioxolane, and tetrahydrofuran tend to react with lithium, which is the negative electrode active material, or to evaporate to the outside of the battery, resulting in problems with storage characteristics.
(ハ) 発明が解決しようとする問題点 本発明は非水電解液を改良し、保存特性に優れた非水電
解液電池を提供することを目的とする。(C) Problems to be Solved by the Invention An object of the present invention is to improve a non-aqueous electrolyte solution and provide a non-aqueous electrolyte battery having excellent storage characteristics.
(ニ) 問題点を解決するための手段 本発明は非水電解液を構成する二種以上の混合溶媒のう
ち低粘度溶媒としてＳ−トリオキサン(Ｃ３Ｈ６Ｏ３)を
用いることを特徴とするものである。(D) Means for Solving Problems The present invention is characterized by using S-trioxane (C 3 H 6 O 3 ) as a low-viscosity solvent among two or more kinds of mixed solvents constituting a non-aqueous electrolyte. To do.
(ホ) 作用 低粘度溶媒としてＳ−トリオキサンを用いることにより
保存特性に優れた非水電解液電池を得ることができる。(E) Action By using S-trioxane as the low-viscosity solvent, a non-aqueous electrolyte battery having excellent storage characteristics can be obtained.
(ヘ) 実施例 以下本発明の実施例について詳述する。(F) Examples Hereinafter, examples of the present invention will be described in detail.
溶媒としてＳ−トリオキサンとプロピレンカーボネート
とを１：１の混合比で混合した混合溶媒を用い、この混
合溶媒に溶質とて過塩素酸リチウムを１モル／溶解し
たものを電解液とする。A mixed solvent obtained by mixing S-trioxane and propylene carbonate at a mixing ratio of 1: 1 was used as a solvent, and 1 mol / mol of lithium perchlorate as a solute was dissolved in this mixed solvent to prepare an electrolytic solution.
正極は３５０〜４３０℃の温度範囲で熱処理した二酸化
マンガンを活物質としこの二酸化マンガンと、導電剤と
してのカーボン粉末及び結着剤としてのフッ素樹脂粉末
とを８５：１０：５の重量比で混合した混合物を加圧成
形し２５０〜３５０℃で熱処理したものを用い、又負極
はリチウム圧延板を所定寸法に打抜いたものを用いて径
２０．０mm、厚み２．５mm、電池容量１２０ｍＡＨの本
発明電池を得る。この電池をＡとする。The positive electrode uses manganese dioxide heat-treated in the temperature range of 350 to 430 ° C. as an active material, and this manganese dioxide is mixed with carbon powder as a conductive agent and fluororesin powder as a binder at a weight ratio of 85: 10: 5. The mixture was pressure-molded and heat-treated at 250 to 350 ° C., and the negative electrode was formed by punching a rolled lithium plate into a predetermined size. The diameter was 20.0 mm, the thickness was 2.5 mm, and the battery capacity was 120 mAH. An invention battery is obtained. This battery is designated as A.
次に、本発明電池の優位性を調べるために、低粘度溶媒
として従来より用いられている１，２ジメトキシエタン
を用い、この１，２ジメトキシエタンとプロピレンカー
ボネートとを１：１の混合比で混合した混合溶媒を用い
ることを除いて他は本発明電池と同様の比較電池Ｂを作
成した。Next, in order to investigate the superiority of the battery of the present invention, 1,2-dimethoxyethane conventionally used as a low-viscosity solvent was used, and the 1,2-dimethoxyethane and propylene carbonate were mixed at a mixing ratio of 1: 1. A comparative battery B was prepared in the same manner as the battery of the present invention except that the mixed solvent used was mixed.
第１図及び第２図は本発明電池と比較電池との放電特性
比較図であって、第１図は電池組立後直ちに２５℃にお
いて５ｋΩの定抵抗で放電した時の初期特性、又第２図
は電池組立後、６０℃で３ケ月間保存したのち２５℃に
おいて５ｋΩの定抵抗で放電した時の保存特性を夫々示
す。1 and 2 are comparison diagrams of the discharge characteristics of the battery of the present invention and the comparative battery. FIG. 1 shows the initial characteristics when discharged at a constant resistance of 5 kΩ at 25 ° C. immediately after the battery is assembled, and The figures show the storage characteristics after the battery was assembled and stored at 60 ° C. for 3 months and then discharged at 25 ° C. with a constant resistance of 5 kΩ.
第１図及び第２図より本発明電池Ａは比較電池Ｂに比し
て初期特性ではほとんど差異がないが、保存特性では顕
著に特性改善が認められる。1 and 2, the battery A of the present invention has almost no difference in the initial characteristics as compared with the comparative battery B, but the characteristics are remarkably improved in the storage characteristics.
尚、本発明電池Ａと比較電池Ｂとを第２図の条件下で保
存した後、電解液量(初期値１５０ｍｇ)を測定すると、
本発明電池では電解液量に変化はなかったが、従来電池
では５ｍｇの電解液量の減少が認められた。When the battery A of the present invention and the comparative battery B were stored under the conditions shown in FIG. 2 and the amount of electrolyte (initial value 150 mg) was measured,
In the battery of the present invention, there was no change in the amount of electrolytic solution, but in the conventional battery, a decrease in the amount of electrolytic solution of 5 mg was observed.
又、第３図は本発明電池における混合溶媒の混合比と放
電容量との関係を示す図である。Further, FIG. 3 is a diagram showing the relationship between the mixing ratio of the mixed solvent and the discharge capacity in the battery of the present invention.
(ト) 発明の効果 上述した如く、本発明によれば保存特性に優れた非水電
解液電池を得ることができる。(G) Effects of the Invention As described above, according to the present invention, a non-aqueous electrolyte battery having excellent storage characteristics can be obtained.
本発明電池の効果を考察するに、本発明電池の非水電解
液に用いた低粘度溶媒としてのＳ−トリオキサンが他の
低粘度溶媒、即ちジメトキシエタノール、ジオキソラ
ン、テトラハイドロフランなどに比して負極活物質とし
てのリチウムと反応せず、且蒸発逸散し難たいものであ
ることに起因すると考えられる。Considering the effect of the battery of the present invention, S-trioxane as a low-viscosity solvent used in the non-aqueous electrolyte of the battery of the present invention is compared with other low-viscosity solvents such as dimethoxyethanol, dioxolane, and tetrahydrofuran. It is considered that this is because it does not react with lithium as the negative electrode active material and is difficult to evaporate and dissipate.
尚、低粘度溶媒としてのＳ−トリオキサンと組合せる高
粘度溶媒の例として実施例ではプロピレンカーボネート
のみを例示したが、その他にγ−ブチロラクトン、スル
ホラン、エチレンカーボエートなどを用いることができ
る。In the examples, only propylene carbonate was illustrated as an example of the high-viscosity solvent combined with S-trioxane as the low-viscosity solvent, but γ-butyrolactone, sulfolane, ethylene carboate and the like may be used.
第１図及び第２図は本発明電池と比較電池との放電特性
比較図であって、第１図は初期特性、第２図は保存特性
を夫々示す。又、第３図は本発明電池における混合溶媒
の混合比率と電池放電容量との関係を示す図である。 (Ａ)…本発明電池、(Ｂ)…比較電池。1 and 2 are comparison diagrams of the discharge characteristics of the battery of the present invention and the comparative battery. FIG. 1 shows the initial characteristics and FIG. 2 shows the storage characteristics. Further, FIG. 3 is a diagram showing the relationship between the mixing ratio of the mixed solvent and the battery discharge capacity in the battery of the present invention. (A) ... Inventive battery, (B) ... Comparative battery.
Claims (1)
る負極と、正極と、溶媒と溶質とからなる非水電解液と
を備えるものであって、前記溶媒は少なくとも二種以上
の混合溶媒よりなり、一種がＳ−トリオキサンであるこ
とを特徴とする非水電解液電池。1. A negative electrode using lithium or a lithium alloy as an active material, a positive electrode, and a nonaqueous electrolytic solution containing a solvent and a solute, wherein the solvent is a mixed solvent of at least two kinds. A non-aqueous electrolyte battery, characterized in that one is S-trioxane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60162482A JPH067492B2 (en) | 1985-07-23 | 1985-07-23 | Non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60162482A JPH067492B2 (en) | 1985-07-23 | 1985-07-23 | Non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6224569A JPS6224569A (en) | 1987-02-02 |
| JPH067492B2 true JPH067492B2 (en) | 1994-01-26 |
Family
ID=15755453
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60162482A Expired - Lifetime JPH067492B2 (en) | 1985-07-23 | 1985-07-23 | Non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH067492B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0621600Y2 (en) * | 1989-07-07 | 1994-06-08 | 好徹 大石 | Concrete block structure used for fish reef or purification |
-
1985
- 1985-07-23 JP JP60162482A patent/JPH067492B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6224569A (en) | 1987-02-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |