JPH0677456B2 - Non-aqueous electrolyte battery - Google Patents
Non-aqueous electrolyte batteryInfo
- Publication number
- JPH0677456B2 JPH0677456B2 JP61150583A JP15058386A JPH0677456B2 JP H0677456 B2 JPH0677456 B2 JP H0677456B2 JP 61150583 A JP61150583 A JP 61150583A JP 15058386 A JP15058386 A JP 15058386A JP H0677456 B2 JPH0677456 B2 JP H0677456B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- battery
- aqueous electrolyte
- weight
- 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.)
- Expired - Fee Related
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
-
- 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)
- 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】 （イ）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負極活物質とし、
酸化第二銅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。DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention uses lithium or a lithium alloy as a negative electrode active material,
The present invention relates to a non-aqueous electrolyte battery using cupric oxide as a positive electrode active material.
（ロ）従来の技術 この種電池は高エネルギー密度を有すると共に自己放電
が少なく、且電池電圧が約1.5Vであるので既存の1.5V系
電池の代替として注目されているが、放電初期に電池電
圧が落ち込む、又高率放電時における作動電圧が低いと
いう欠点がある。(B) Conventional technology This type of battery has a high energy density, has little self-discharge, and has a battery voltage of about 1.5V. There are drawbacks that the voltage drops and the operating voltage at the time of high rate discharge is low.
ところで、例えば特開昭55−154071号公報に開示されて
いるように酸化第二銅に硫化鉄を添加することが提案さ
れているが上記欠点を解決するには至っていない。By the way, it has been proposed to add iron sulfide to cupric oxide as disclosed in, for example, Japanese Patent Laid-Open No. 55-154071, but the above drawbacks have not been solved yet.
（ハ）発明が解決しようとする問題点 本発明は酸化第二銅−リチウム系の非水電解液電池にお
ける放電初期の落込み及び高率放電時の作動電圧の低下
を改善しようとするものである。(C) Problems to be Solved by the Invention The present invention is intended to improve the drop in the initial stage of discharge and the reduction in operating voltage during high rate discharge in cupric oxide-lithium non-aqueous electrolyte batteries. is there.
（ニ）問題点を解決するための手段 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、非水電解液と、酸化第二銅を活物質とする正極と
を備えた非水電解液電池であって、前記正極に二硫化鉄
及び黄銅鉱を添加し、且つそれらの合計添加量を前記正
極に対して10〜35重量％としたものである。又個々につ
いて云えば二流化鉄は５〜20重量％、黄銅鉱は５〜15重
量％の範囲が好ましい。(D) Means for Solving the Problems The present invention provides a non-aqueous electrolysis including a negative electrode using lithium or a lithium alloy as an active material, a non-aqueous electrolytic solution, and a positive electrode using cupric oxide as an active material. In the liquid battery, iron disulfide and chalcopyrite are added to the positive electrode, and the total addition amount thereof is 10 to 35% by weight with respect to the positive electrode. In terms of the individual, it is preferable that iron difluide is in the range of 5 to 20% by weight and chalcopyrite is in the range of 5 to 15% by weight.
（ホ）作用 正極に二硫化鉄及び黄銅鉱を添加すると、放電初期の電
池電圧の落込みが解消され、且高率放電特性が向上す
る。(E) Action When iron disulfide and chalcopyrite are added to the positive electrode, the drop in battery voltage at the initial stage of discharge is eliminated, and high rate discharge characteristics are improved.
（ヘ）実施例 市販特級の酸化第二銅（CuO）70重量％に、市販特級の
二硫化鉄（FeS2）15重量％、市販特級の黄銅鉱（CuFeS
2）５重量％、導電剤としての黒鉛５重量％及び結着剤
としてのフッ素樹脂粉末５重量％を加えて混合した後、
この混合物を約２トン／cm2の圧力で加圧成型して径15.
0mm、厚み1.1mmの成型体を得、この成型体を200〜300℃
の温度で熱処理して正極とする。(F) Example Commercially available special grade cupric oxide (CuO) 70% by weight, commercially available special grade iron disulfide (FeS2) 15% by weight, commercially available special grade chalcopyrite (CuFeS)
2) After adding 5% by weight, 5% by weight of graphite as a conductive agent and 5% by weight of fluororesin powder as a binder and mixing,
This mixture was pressure molded at a pressure of about 2 tons / cm 2 to a diameter of 15.
A molded body with a thickness of 0 mm and a thickness of 1.1 mm is obtained, and this molded body is heated at 200 to 300 ° C.
Heat treatment is carried out at a temperature of to obtain a positive electrode.
負極は厚み約0.6mmのリチウム圧延板を径15.0mmに打抜
いたものである。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過塩素酸リチウムを
１モル/l溶解させたものを用い、又セパレータはポリプ
ロピレン不織布を用いて直径20.0mm、厚み2.5mmの本発
明電池（Ａ）を作成した。The negative electrode is formed by punching out a rolled lithium plate having a thickness of about 0.6 mm to a diameter of 15.0 mm. The electrolyte is propylene carbonate and 1.
A battery (A) of the present invention having a diameter of 20.0 mm and a thickness of 2.5 mm was prepared by using lithium perchlorate dissolved in 1 mol / l in a mixed solvent with 2 dimethoxyethane and using polypropylene nonwoven fabric as a separator.
ついで本発明電池の優位性を調べるために、下表に示す
如く正極活物質のみ本発明電池と異なる各種の比較電池
を作成した。Then, in order to investigate the superiority of the battery of the present invention, various comparative batteries different from the battery of the present invention only in the positive electrode active material were prepared as shown in the table below.
第１図はこれら電池を温度25℃、負荷800Ωの条件下で
放電した時の放電特性図であり、第１図より本発明電池
（Ａ）は比較電池（Ｂ）〜（Ｄ）に比して放電初期の電
池落込みがなく、且高率放電時における作動電圧も高電
圧を示すことがわかる。 FIG. 1 is a discharge characteristic diagram when these batteries were discharged under the conditions of a temperature of 25 ° C. and a load of 800Ω. From FIG. 1, the battery (A) of the present invention is compared with the comparative batteries (B) to (D). Thus, it can be seen that there is no drop in the battery at the beginning of discharge, and the operating voltage at the time of high rate discharge also shows a high voltage.
この理由は詳かではないが、本発明電池における正極の
場合、CuO、FeS2及びCuFeS2が同時に放電してFeS2とCuF
eS2との間で反応中間生成物とみられるCuxFeySz（１＞
x,2＞y,4＞ｚ）が生成し、この化合物がCuOとの並行放
電において反応が円滑に進行することが要因であると考
えられる。The reason for this is not clear, but in the case of the positive electrode of the battery of the present invention, CuO, FeS2 and CuFeS2 are simultaneously discharged and FeS2 and CuF are discharged.
CuxFeySz (1>) which seems to be a reaction intermediate with eS2
It is considered that x, 2> y, 4> z) is generated, and that this compound causes the reaction to smoothly proceed in parallel discharge with CuO.
又、第２図はFeS2とCuFeS2との正極に対する添加量と、
電池放電容量との関係を示す図であり、第２図より合計
添加量としては正極に対して10〜35重量％の範囲が好ま
しく、個々について云えばFeS2は５〜20重量％、CuFeS2
は５〜15重量％の範囲が好ましいことがわかる。Fig. 2 shows the addition amounts of FeS2 and CuFeS2 to the positive electrode,
It is a diagram showing the relationship with the battery discharge capacity. From FIG. 2, the total addition amount is preferably in the range of 10 to 35% by weight relative to the positive electrode. FeS2 is 5 to 20% by weight, CuFeS2
It is understood that the range of 5 to 15% by weight is preferable.
（ト）発明の効果 上述した如く、酸化第二銅を正極活物質とする非水電解
液電池において、正極に二硫化鉄及び黄銅鉱を添加し、
且つそれらの合計添加量を前記正極に対して10〜35重量
％とすることにより、初期放電時の電圧落込みを解消で
き、且高率放電特性を改善することができるものであ
り、この種電池の用途拡大に資するところ極めて大であ
る。(G) Effect of the invention As described above, in a non-aqueous electrolyte battery using cupric oxide as the positive electrode active material, iron disulfide and chalcopyrite are added to the positive electrode,
Moreover, by making the total addition amount of them 10 to 35% by weight with respect to the positive electrode, it is possible to eliminate the voltage drop at the initial discharge and improve the high rate discharge characteristics. This is extremely large as it contributes to expanding the applications of batteries.
第１図は電池の高率放電特性比較図、第２図は二硫化鉄
と黄銅鉱の添加量と、電池放電容量との関係を示す図で
ある。 （Ａ）……本発明電池、（Ｂ）（Ｃ）（Ｄ）……比較電
池。FIG. 1 is a comparison diagram of high-rate discharge characteristics of batteries, and FIG. 2 is a diagram showing the relationship between the addition amount of iron disulfide and chalcopyrite and the discharge capacity of the battery. (A) ... Invention battery, (B) (C) (D) ... Comparison battery.
Claims (1)
負極と、非水電解液と、酸化第二銅を活物質とする正極
とを備え、前記正極に二硫化鉄及び黄銅鉱を添加し、且
つそれらの合計添加量を前記正極に対して10〜35重量％
とした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 non-aqueous electrolyte, and a positive electrode using cupric oxide as an active material, wherein iron disulfide and chalcopyrite are added to the positive electrode. And the total addition amount thereof is 10 to 35% by weight with respect to the positive electrode.
And a non-aqueous electrolyte battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61150583A JPH0677456B2 (en) | 1986-06-26 | 1986-06-26 | Non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61150583A JPH0677456B2 (en) | 1986-06-26 | 1986-06-26 | Non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS636750A JPS636750A (en) | 1988-01-12 |
| JPH0677456B2 true JPH0677456B2 (en) | 1994-09-28 |
Family
ID=15500057
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61150583A Expired - Fee Related JPH0677456B2 (en) | 1986-06-26 | 1986-06-26 | Non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0677456B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2417656B1 (en) * | 2009-04-06 | 2018-03-21 | Eaglepicher Technologies, Llc | Thermal battery cathode materials and batteries including same |
-
1986
- 1986-06-26 JP JP61150583A patent/JPH0677456B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS636750A (en) | 1988-01-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |