JPS60154463A - Nonaqueous electrolyte battery - Google Patents
Nonaqueous electrolyte batteryInfo
- Publication number
- JPS60154463A JPS60154463A JP59011672A JP1167284A JPS60154463A JP S60154463 A JPS60154463 A JP S60154463A JP 59011672 A JP59011672 A JP 59011672A JP 1167284 A JP1167284 A JP 1167284A JP S60154463 A JPS60154463 A JP S60154463A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- battery
- molybdenum sulfide
- serving
- active material
- 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
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
-
- 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】
（イ）産業上の利用分野
本発明は二硫化鉄を正極活物質とする非水電解液電池に
関するものである、
（Ｕ） 従来技術
リチウム、ナトリウム或いはこれらの合金を負極活物質
とし、金属の酸化物、硫化物、塩化物やハロゲン炭素な
どを正極活物質とし、プロピレンカーボネー ｌ−１ｙ
−ブチルラクトン、１．２ジメトキシエタンなどの有機
溶媒に過塩素酸リチウム、ホウフッ化リチウム、アルミ
ニウムリチウムなどの無機塩を溶解したるものを電解液
として用いる非水電解液電池は高エネルギー密度を有し
、且自己放電が少ないという利点を有するため、近年、
特に注１されており現在までに二酸化マンガン、フッ化
炭素を正極活物質とする３、０ｖ系の非水電解液電池が
提案されている。[Detailed description of the invention] (a) Industrial application field The present invention relates to a non-aqueous electrolyte battery using iron disulfide as a positive electrode active material. (U) Prior art: Lithium, sodium or an alloy thereof The negative electrode active material is metal oxide, sulfide, chloride, halogen carbon, etc., and the positive electrode active material is propylene carbonate l-1y.
-Non-aqueous electrolyte batteries that use an electrolyte prepared by dissolving an inorganic salt such as lithium perchlorate, lithium borofluoride, or lithium aluminum in an organic solvent such as butyllactone or 1.2 dimethoxyethane have a high energy density. In addition, it has the advantage of less self-discharge, so in recent years,
In particular, as noted in Note 1, 3.0 V type non-aqueous electrolyte batteries using manganese dioxide and carbon fluoride as positive electrode active materials have been proposed to date.
一方、例えば特公昭５６−３６７９４号公報に開示され
ているように正極活物質として二硫化鉄（ＦｅＳｔ）を
用いれば、１．５ｖ系の非水電解液電池が得られ、既存
の乾電池やアルカリ乾電池と代替しうる利点がある。On the other hand, if iron disulfide (FeSt) is used as the positive electrode active material as disclosed in Japanese Patent Publication No. 56-36794, a 1.5V non-aqueous electrolyte battery can be obtained, which can be used to replace existing dry batteries or alkaline batteries. It has the advantage of being able to replace dry batteries.
（ハ）発明の目的
本発明は特に二硫化鉄を正極活物質とする１、５Ｖ系非
水電解液電池の電池特性を改善することを目的とする。(c) Purpose of the Invention The purpose of the present invention is particularly to improve the battery characteristics of a 1.5V nonaqueous electrolyte battery using iron disulfide as a positive electrode active material.
（ニ） 発明の構成
本発明はリチウム、ナトリウム或いはこれらの合金を活
物質とする負極と、二硫化鉄を活物質とする正極と、非
水電解液とを備えるものであって、前記正極に硫化モリ
ブデンを添加したことを特徴とする非水電解液電池にあ
る。(D) Structure of the Invention The present invention comprises a negative electrode using lithium, sodium, or an alloy thereof as an active material, a positive electrode using iron disulfide as an active material, and a non-aqueous electrolyte, the positive electrode comprising: A non-aqueous electrolyte battery characterized by the addition of molybdenum sulfide.
（ホ） 実施例 以下本発明電池の実施例について詳述する。(e) Example Examples of the battery of the present invention will be described in detail below.
市販二硫化鉄（ＦｅＳｔ）に添加剤としての硫化モリブ
デン（ＭｏＳｓ）、導電剤としてのアセチレンブラック
及び黒鉛、及び結着剤としてのフッ素樹脂粉末を８０：
１０：６ ： ４の重量比で加え充分混合してなる正極
合剤を約１）：／／ＣＩｌ＋２の圧力で加圧成型し径１
５．０ＩＩｉ１１１厚み１．１ｍのベレットを得、その
後このペレットを２００〜３００ ’Ｃの温度で焼成し
て正極とする。Commercially available iron disulfide (FeSt) was mixed with molybdenum sulfide (MoSs) as an additive, acetylene black and graphite as conductive agents, and fluororesin powder as a binder at 80:
A positive electrode mixture prepared by adding and thoroughly mixing at a weight ratio of 10:6:4 is press-molded at a pressure of approximately 1)://CI1+2 to a diameter of 1.
5.0IIi111 A pellet with a thickness of 1.1 m is obtained, and then this pellet is fired at a temperature of 200-300'C to form a positive electrode.
負極はリチウム板を０．６１１１０の厚みに圧延し、こ
の圧延板を径１５．０ｍｍに打抜いたものである。又電
解液はプロピレンカーボネートと１．２ジメトキシエタ
ンとの混合溶媒にホウフッ化リチウムを１モル／Ｐ溶解
させたものである。The negative electrode was obtained by rolling a lithium plate to a thickness of 0.61110 mm, and punching this rolled plate into a diameter of 15.0 mm. The electrolytic solution was prepared by dissolving 1 mol/P of lithium fluoroborate in a mixed solvent of propylene carbonate and 1.2 dimethoxyethane.
第１図は本発明電池の断面図を示し、（１）は正極であ
って正極缶（２）の内底面に正極集電体く３）を介して
圧接されている。又、（４）は負極であって負極毎（５
）の内底面に負極集電体（６）を介して圧着きれている
。（７）はポリプロピレン不織布よりなるセパレータ、
（８）は絶縁バッキングである。FIG. 1 shows a cross-sectional view of the battery of the present invention, in which (1) is a positive electrode, which is pressed into contact with the inner bottom surface of a positive electrode can (2) via a positive electrode current collector 3). Also, (4) is a negative electrode, and each negative electrode (5
) is completely crimped onto the inner bottom surface of the negative electrode current collector (6). (7) is a separator made of polypropylene nonwoven fabric;
(8) is an insulating backing.
第２図は本発明電池（Ａ）と従来電池（Ｂ）とを２０°
Ｃにおいて５．６にΩ定負荷放電した時の放電特性及び
内部抵抗特性を比較したものである。Figure 2 shows the battery of the present invention (A) and the conventional battery (B) at 20 degrees.
This is a comparison of the discharge characteristics and internal resistance characteristics when discharging at a constant load of 5.6 Ω at C.
尚、従来電池（Ｂ）の二硫化鉄正極には硫化モリブデン
は添加されていない。Note that molybdenum sulfide is not added to the iron disulfide positive electrode of the conventional battery (B).
第２図より明白なるように本発明電池（Ａ）は従来電池
（Ｂ）に比して放電後期における内部抵抗の上昇が抑制
され放電特性が改善きれていることがわかる。As is clear from FIG. 2, it can be seen that the battery (A) of the present invention suppresses the increase in internal resistance in the late stage of discharge and has improved discharge characteristics compared to the conventional battery (B).
この理由を考察するに、二硫化鉄単独の従来電池の場合
には、理由は詳かでないが放電後期にお°゛１放寛生成
物０増加を因とし１内部抵抗が増加 （するものと考え
られるのに対し、本発明電池の場合には、放電後期にお
いて添加剤としての硫化モリブデンが反応に関与し、こ
の硫化モリブデンの反応生成物が正極の内部抵抗の上昇
を抑制するように作用するものと考えられる。Considering the reason for this, in the case of a conventional battery containing only iron disulfide, the internal resistance increases in the late stage of discharge due to an increase in release products (although the reason is not clear). In contrast, in the case of the battery of the present invention, molybdenum sulfide as an additive participates in the reaction in the late stage of discharge, and the reaction product of this molybdenum sulfide acts to suppress the increase in internal resistance of the positive electrode. considered to be a thing.
第３図は硫化モリブデンの添加量と、正極活物質利用率
及び電池放電容量との関係を示す図であり、第３図より
正極活物質利用率について云えば１．０重量％以上で効
果が表われるが２０．０重量％以−Ｅではその効果はほ
とんど一定となる。又、電池放電容量について云えば１
．０重量％以上で効果が表われ１５．０重量％で無添加
の場合より若干効果が認められるに過ぎない。Figure 3 is a diagram showing the relationship between the amount of molybdenum sulfide added, the positive electrode active material utilization rate, and the battery discharge capacity. Figure 3 shows that the positive electrode active material utilization rate is effective at 1.0% by weight or more. However, at 20.0% by weight or more, the effect becomes almost constant. Also, speaking of battery discharge capacity, 1
．． At 0% by weight or more, the effect appears, and at 15.0% by weight, it is only slightly more effective than when no additive is added.
従っ工、硫化モリブデンの添加量としては正極重量に対
して１．０〜１５．０重量％程度が好ましい。Accordingly, the amount of molybdenum sulfide added is preferably about 1.0 to 15.0% by weight based on the weight of the positive electrode.
（へン 発明の効果
本発明電池によれは、二硫化鉄を活物質とする正極に硫
化モリブデンを添加してので放電後期にお【する内部抵
抗の上昇が抑制され、放電特性が改善されるものであり
、特に既存の乾電池やアルカリ乾電池の電池電圧とほぼ
同様の電池電圧を有する１、５ｖ系非水電解液電池の実
用化に’ｆｆ−Ｊるとこる極めて大である。Effects of the Invention In the battery of the present invention, since molybdenum sulfide is added to the positive electrode, which uses iron disulfide as an active material, the increase in internal resistance in the late stage of discharge is suppressed, and the discharge characteristics are improved. This is especially important for the practical application of 1.5V non-aqueous electrolyte batteries, which have a battery voltage that is almost the same as that of existing dry batteries and alkaline batteries.
第１図は本発明電池の鞭断面図、第２図は本発明電池と
従来電池との電池特性比較図、第３図は添加剤の添加量
と正極活物質利用率及び電池放電容量との関係を示す図
である。
（１）・・・正極、（２〉・・・正極缶、（３〉・・正
極集電体、（４）・・・負極、（５）・・・負極毎、（
６）・・・負極集を体、（７）・・・セパレータ、 （
８）・・・絶縁バッキング、（Ａ）・・・本発明電池、
（Ｂ）・・・従来電池。
出願人 三洋電機株式会社
代理人 弁理士 佐野静夫Figure 1 is a cross-sectional view of the battery of the present invention, Figure 2 is a comparison of battery characteristics between the battery of the present invention and a conventional battery, and Figure 3 is the relationship between the amount of additives added, the utilization rate of positive electrode active material, and the battery discharge capacity. It is a figure showing a relationship. (1)...Positive electrode, (2>...Positive electrode can, (3>...Positive electrode current collector, (4)...Negative electrode, (5)...Each negative electrode, (
6)... Negative electrode collection, (7)... Separator, (
8)...Insulating backing, (A)...Battery of the present invention,
(B)...Conventional battery. Applicant Sanyo Electric Co., Ltd. Agent Patent Attorney Shizuo Sano
Claims (1)
とする負極と、二硫化鉄を活物質とする正極と、非水電
解液とを備えるものであって、前記正極に硫化モリブ１
ンを添加したことを特徴とする非水電解液電池。 ■前記硫化モリブデンの添加量が正極重量に苅してｌＯ
〜１５．０重量％であることを特徴とする特許請求の範
囲第０項記載の非水電解液電池。[Claims] ■ A negative electrode containing lithium, sodium, or an alloy thereof as an active material, a positive electrode containing iron disulfide as an active material, and a non-aqueous electrolyte, the positive electrode containing molybum sulfide. 1
A non-aqueous electrolyte battery characterized by the addition of ■The amount of molybdenum sulfide added is 10% by weight of the positive electrode.
The non-aqueous electrolyte battery according to claim 0, wherein the content is 15.0% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59011672A JPS60154463A (en) | 1984-01-24 | 1984-01-24 | Nonaqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59011672A JPS60154463A (en) | 1984-01-24 | 1984-01-24 | Nonaqueous electrolyte battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60154463A true JPS60154463A (en) | 1985-08-14 |
Family
ID=11784475
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59011672A Pending JPS60154463A (en) | 1984-01-24 | 1984-01-24 | Nonaqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60154463A (en) |
-
1984
- 1984-01-24 JP JP59011672A patent/JPS60154463A/en active Pending
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