JPS60150554A - Nonaqueous electrolyte cell - Google Patents

Nonaqueous electrolyte cell

Info

Publication number
JPS60150554A
JPS60150554A JP59005423A JP542384A JPS60150554A JP S60150554 A JPS60150554 A JP S60150554A JP 59005423 A JP59005423 A JP 59005423A JP 542384 A JP542384 A JP 542384A JP S60150554 A JPS60150554 A JP S60150554A
Authority
JP
Japan
Prior art keywords
positive electrode
battery
bismuth oxide
active material
iron disulfide
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
Application number
JP59005423A
Other languages
Japanese (ja)
Inventor
Konosuke Ikeda
宏之助 池田
Shinji So
慎治 宗
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Original Assignee
Sanyo Electric Co Ltd
Sanyo Denki Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sanyo Electric Co Ltd, Sanyo Denki Co Ltd filed Critical Sanyo Electric Co Ltd
Priority to JP59005423A priority Critical patent/JPS60150554A/en
Publication of JPS60150554A publication Critical patent/JPS60150554A/en
Pending legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00Electrodes
    • H01M4/02Electrodes composed of, or comprising, active material
    • H01M4/36Selection of substances as active materials, active masses, active liquids
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M6/00Primary cells; Manufacture thereof
    • H01M6/14Cells with non-aqueous electrolyte
    • H01M6/16Cells with non-aqueous electrolyte with organic electrolyte

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Battery Electrode And Active Subsutance (AREA)

Abstract

PURPOSE:To suppress an increase of the inner resistance at the later period of discharging and improve the discharge characteristic by adding bismuth oxide to a positive electrode using iron disulfide as the active material. CONSTITUTION:A pellet molded by pressure with the positive electrode black mix made by adding acetylene black and graphite as conductive agent and fluororesin powder as binding agent to a mixture of iron disulfide and bismuth oxide than thoroughly mixing them is burnt at a temperature of 200-300 deg.C to form a positive electrode 1. A punched lithium rolled plate is used for a negative electrode 4. In addition, a mixed solvent of propylene carbonate and 1,2-dimethoxyethane solved with lithium borofluoride, for example, is used as the electrolyte. Accordingly, an increase of the inner resistance at the later period of discharging is suppressed, and the discharge characteristic is improved.

Description

【発明の詳細な説明】 (イ)産業上の利用分野 本発明は一硫化鉄を正極活物質とする1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 non-aqueous electrolyte battery using iron monosulfide as a positive electrode active material.

CU) 従来技術 リブウl1、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・・【7ゲン
炭素などを正極活物質とし、プロビレ)カーボネート、
ンープチルラク]−ン、12/メトキ、・エタンなとの
有機溶媒に過塩素酸リブラム、ポウフン化リチウム、ア
ルミニウムリグラ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、目、自己放電が少ないという利点をイ1するため
、近年、特に注目されており、現在までに二酸化マンガ
ン、フン化炭素を正極活物質とする3、0v系の非水電
解液電池か提案され工いる。
CU) Conventional technology: sodium or an alloy thereof is used as the negative electrode active material, and metal oxides, sulfides, chlorides, etc. are used as the positive electrode active material, carbonate,
Non-aqueous electrolyte batteries, which use an electrolyte prepared by dissolving inorganic salts such as libram perchlorate, lithium poufonide, and aluminum ligram in an organic solvent such as It has attracted particular attention in recent years due to its advantages of high energy density and low self-discharge.Currently, 3.0V non-aqueous non-aqueous batteries using manganese dioxide and carbon fluoride as positive electrode active materials have been attracting attention in recent years. Electrolyte batteries have been proposed and are being developed.

力、例えは特公昭56−36794号公報に開示され又
いるように正極活物質と(、てニー、硫化鉄(FeS2
)を用いれは、1.5V系の一11水゛屯解戒電池が得
られ、既存の乾電池やアルカI)乾電池と代−t+ L
〉る利点がある。
For example, as disclosed in Japanese Patent Publication No. 56-36794, the positive electrode active material
) can be used to obtain a 1.5V type 111 water battery, which can be used with existing dry batteries or Alka I) dry batteries.
It has the advantage of

(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、5■系非
水゛屯解液Iト池の電池特性を引する5−とを目的とす
る。
(c) Purpose of the Invention The present invention is particularly aimed at (5) which brings out the battery characteristics of a 1,5-type non-aqueous solution I 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Jlら0″)合
金を活物質とずζ)負極と、二゛硫1ヒ鉄を活物質とす
る正極と、非水電解液とを備え乙ものでめ−。
(d) Structure of the Invention The present invention uses lithium, sodium, or an alloy thereof as an active material, a negative electrode, a positive electrode using ferric disulfide as an active material, and a non-aqueous electrolyte. Be prepared.

て、前記正極に酸化ビスマスを添加した−とを特徴とす
る非水電解液電池にある。
The present invention provides a non-aqueous electrolyte battery, characterized in that bismuth oxide is added to the positive electrode.

(ポ) 実施例 以下本発明電池の実施例についT、訂述1ろ。(Po) Example Examples of the battery of the present invention will be described below.

市販二硫化鉄(FeS 2)に酸化ヒスマス(Bi□0
3)を10重量%混合した混合物に、導゛〔剤、−シて
r」・サレンフラノク及び黒鉛を10ffi量%、結む
剤としてフン素樹脂粉末を5重量%を加え充分lka合
シー〔なるIE極合剤を約1トノ/c+n2のlfz力
で加rt成型し径15.0 +nm、 Bみ1.111
1mのペレy hを得、ぞの後このぺL)lを200〜
300℃の温度で焼成し丁正極とAる。
Hismuth oxide (Bi□0) is added to commercially available iron disulfide (FeS2).
3) to a mixture of 10% by weight, 10% by weight of a conductive agent, Salenfuranok, and graphite, and 5% by weight of fluororesin powder as a binding agent were added to form a sufficient binding agent. The IE polar mixture was rt-molded with a lfz force of approximately 1ton/c+n2 to a diameter of 15.0 + nm and a B diameter of 1.111.
Get 1m of Peley h, and after that, this Peley L)l is 200 ~
The positive electrode was fired at a temperature of 300°C.

負極はリチウム板を06胴の厚みに圧延し1、−の圧延
板を径15.0mmに打抜いたもの〔ある。又電解液は
ブーピレンカーボネイトと12シメトキ7・上タンとの
混合溶媒にホウフ、・化リブ−ラムを1モル/9溶解さ
セたものである。
The negative electrode was made by rolling a lithium plate to the thickness of the 06 cylinder and punching out the 1, - rolled plate to a diameter of 15.0 mm. The electrolytic solution was prepared by dissolving 1 mol/9 of houfu, chlorine and libram in a mixed solvent of bupylene carbonate and 12-hydrocarbonate.

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(2λの内底面に正極集1に陸土3)を介し
て圧接されている。又、(4ンは負極でおっ〔負極缶(
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)は絶縁バンキングである。
FIG. 1 shows a cross-sectional view of the battery of the present invention, in which (1) is a positive electrode, which is pressure-welded to the inner bottom surface of a positive electrode can (2λ) via a positive electrode assembly 1 and land 3. Also, (the 4th one is the negative electrode) [the negative electrode can (
5) is completely crimped to the inner bottom surface of the electrode through the negative electrode current collector (6). (7) is a separator made of polypropylene nonwoven fabric, and (8) is an insulating bank.

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)の二硫化欽正極には酸化ビスマスは
添加されていない。
Note that bismuth oxide is not added to the disulfide positive electrode of the conventional battery (B).

第2区より明白なるように、本発明電池(A>は従来電
% (B )に比し1放電後期における内811抵抗の
ト昇が迎制され、放電特性が改善されていることがわか
る。
As is clear from the second section, the battery of the present invention (A>) has an increase in resistance of 811 in the latter half of one discharge compared to the conventional battery (B), indicating that the discharge characteristics are improved. .

−の理由を考察するに、二硫化鉄q1独の従来電池の場
合には、理由は詳かでないか放電後期において放電生成
物の増加を因として内部抵抗が増加するものと考えられ
るのに対し、本発明電池の場合は、放電後期において添
加剤としての酸イしビス1スが反応に関与し、この酸化
ビスマスの反応生成物が正極の内部抵抗の上昇を抑制判
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 conventional batteries using iron disulfide q1, it is thought that the internal resistance increases either because the reason is unknown or because of an increase in discharge products in the late stage of discharge. In the case of the battery of the present invention, bismuth oxide as an additive participates in the reaction in the latter stage of discharge, and the reaction product of this bismuth oxide acts to suppress the increase in internal resistance of the positive electrode. Conceivable.

尚、酸化ヒスマスの添加量とし丁は正極rJi量に対し
て少なくとも10重量%以上添加しないと効果は不充分
であり、又300重量%以上添加すると正極中の主油物
質である二硫化鉄の充填量が減少するためat−するべ
きである。
Note that the effect is insufficient unless the amount of hismuth oxide added is at least 10% by weight based on the amount of rJi in the positive electrode, and if it is added in excess of 300% by weight, iron disulfide, which is the main oil substance in the positive electrode, is It should be at- because the filling amount will decrease.

依って、酸化ビスマスの添加量とし1は型棒重量に対し
て10〜300重量%程度が好ましい。
Therefore, the amount of bismuth oxide added is preferably about 10 to 300% by weight based on the weight of the mold bar.

(へ)発明の効果 本発明電池によれは、二硫化鉄を活物質と16正極に酸
化ビスマスを添加したので放電後期における内部抵抗の
1月が抑制され、放’t’++性が改善されるものであ
り、特に既存の乾’itsやアルカjl乾電池の電池電
圧とほぼ同様の電池電圧を山−4る1、5V系非水電解
液電池の実用化に貿するとごろ極めて犬である。
(f) Effects of the Invention In the battery of the present invention, since iron disulfide is added as an active material and bismuth oxide is added to the positive electrode, the internal resistance in the late stage of discharge is suppressed, and the release 't'++ property is improved. This is especially true when it comes to practical use of 1.5V non-aqueous electrolyte batteries, which have a battery voltage that is almost the same as that of existing dry batteries and Alka JL dry batteries.

4、 図面のin 、ji!−な説明 第1図は木登tlJl電池の縦断面図、第2図は本発明
電池と従来電池との電池特性比較図工゛ある。
4. Drawing in, ji! - Explanation: Figure 1 is a longitudinal cross-sectional view of the Kibo tlJl battery, and Figure 2 is a comparison diagram of battery characteristics between the battery of the present invention and a conventional battery.

(1) 正極、(2)・・・正極缶、(3)・ 正極集
電体、(4)・・・負極、(5)・ ・負極化、(6)
・負極集電体、(7)・セパレータ、く8)・・ 絶縁
バッキング、(A> ・・本発明電池、(B) 従来電
池。
(1) Positive electrode, (2)... Positive electrode can, (3)・ Positive electrode current collector, (4)... Negative electrode, (5)... Negative electrode, (6)
- Negative electrode current collector, (7) - Separator, (8)... Insulating backing, (A>...Battery of the present invention, (B) Conventional battery.

出願人 三洋′r4L機株式会社 代理人 弁理士 佐野静夫Applicant: Sanyo'r4L Machine Co., Ltd. Agent: Patent Attorney Shizuo Sano

Claims (1)

【特許請求の範囲】[Claims] ■ リチウム、ナトリウム或いはこれらの合金を活物質
とずイ)負極と、二硫化a:を活物質とず乙1[極と、
非水電解液とを備えるものぐあン又、Iii記正極に酸
化ビスマスを添加したことを特徴とする非水電解液電池
■ Lithium, sodium, or an alloy thereof is used as the active material. A) Negative electrode and disulfide a: are used as the active material.
A non-aqueous electrolyte battery, characterized in that bismuth oxide is added to the positive electrode according to (iii).
JP59005423A 1984-01-13 1984-01-13 Nonaqueous electrolyte cell Pending JPS60150554A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59005423A JPS60150554A (en) 1984-01-13 1984-01-13 Nonaqueous electrolyte cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59005423A JPS60150554A (en) 1984-01-13 1984-01-13 Nonaqueous electrolyte cell

Publications (1)

Publication Number Publication Date
JPS60150554A true JPS60150554A (en) 1985-08-08

Family

ID=11610754

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59005423A Pending JPS60150554A (en) 1984-01-13 1984-01-13 Nonaqueous electrolyte cell

Country Status (1)

Country Link
JP (1) JPS60150554A (en)

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