JP2594033B2 - Non-aqueous electrolyte battery - Google Patents
Non-aqueous electrolyte batteryInfo
- Publication number
- JP2594033B2 JP2594033B2 JP60205559A JP20555985A JP2594033B2 JP 2594033 B2 JP2594033 B2 JP 2594033B2 JP 60205559 A JP60205559 A JP 60205559A JP 20555985 A JP20555985 A JP 20555985A JP 2594033 B2 JP2594033 B2 JP 2594033B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- aqueous electrolyte
- stainless steel
- aluminum
- 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.)
- 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/64—Carriers or collectors
- H01M4/66—Selection of materials
- H01M4/669—Steels
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/117—Inorganic material
- H01M50/119—Metals
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/10—Primary casings, jackets or wrappings of a single cell or a single battery
- H01M50/116—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material
- H01M50/124—Primary casings, jackets or wrappings of a single cell or a single battery characterised by the material having a layered structure
-
- 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
Description
【発明の詳細な説明】 （イ）産業上の利用分野 本発明はリチウムを活物質とする負極と、金属の酸化
物、ハロゲン化物などを活物質とする正極と、非水電解
液とを備えた電池に関する。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial application field The present invention comprises a negative electrode using lithium as an active material, a positive electrode using a metal oxide, a halide or the like as an active material, and a non-aqueous electrolyte. Battery.
（ロ）従来の技術 この種電池の缶材料としてはニッケル含有量が約３〜
20重量％の所謂オーステナイト系ステンレス鋼が一般に
用いられているが、電池の保存中に特に正極に電気接続
された正極缶はその構成部材が電解液中に溶解し負極上
に析出して内部抵抗を増大させ、また極端な場合には穴
あき現象を生じることがある。この原因はステンレス鋼
に含まれるニッケル量に依存すると考えられニッケル量
が大なるほど顕著であった。(B) Conventional technology A nickel material having a nickel content of about 3 to
A so-called austenitic stainless steel of 20% by weight is generally used. During storage of a battery, particularly, in a positive electrode can electrically connected to the positive electrode, its components dissolve in an electrolytic solution and precipitate on the negative electrode, resulting in an internal resistance. And, in extreme cases, a perforation phenomenon may occur. The cause was considered to depend on the amount of nickel contained in the stainless steel, and became more remarkable as the amount of nickel increased.
そこで、例えば特公昭55−15067号公報に開示されて
いるように正極缶構成部材としてニッケルをほとんど含
まず応力下での割れ感受性の少ないフェライト系ステン
レス鋼を用いることが提案されたが、この場合にも高温
で長期間保存すると構成部材の溶解現象が認められた。Thus, for example, as disclosed in Japanese Patent Publication No. 55-15067, it has been proposed to use a ferritic stainless steel containing almost no nickel and having a low susceptibility to cracking under stress as a constituent member of the positive electrode can. Also, when stored at a high temperature for a long time, a dissolution phenomenon of the constituent members was observed.
さて、この種電池は従来の銀電池、アルカリ電池に比
して自己放電が小さいため長期間の使用に耐えうるもの
であり、そのため最近では使用機器側のエレクトロニク
スの発展と相俟って微小電流による長期に亘る放電特性
の安定性が求められるようになってきた。ここで述べる
微小電流とは高々数μＡであるがこのような微小電流放
電下において長期間安定した放電特性を得るためには電
池自身の高信頼性が要求される。This type of battery has a lower self-discharge than conventional silver batteries and alkaline batteries, and thus can withstand long-term use. Therefore, the stability of discharge characteristics over a long period of time has been required. The minute current described here is at most several μA, but in order to obtain long-term stable discharge characteristics under such minute current discharge, high reliability of the battery itself is required.
（ハ）発明が解決しようとする問題点 本発明は高温での長期保存においても正極缶構成部材
の溶解（腐食）を抑制しうる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 It is an object of the present invention to provide a nonaqueous electrolyte battery capable of suppressing the dissolution (corrosion) of the constituent members of the positive electrode can even during long-term storage at a high temperature.
（ニ）問題点を解決するための手段 本発明は、リチウムを活物質とする負極を備えた非水
電解液電池であって、正極缶構成部材としてアルミニウ
ムを0.5〜10.0重量％含有するフェライト系ステンレス
鋼を用いることを特徴とする。(D) Means for Solving the Problems The present invention relates to a non-aqueous electrolyte battery provided with a negative electrode using lithium as an active material, and a ferrite-based battery containing 0.5 to 10.0% by weight of aluminum as a constituent member of a positive electrode can. It is characterized by using stainless steel.
（ホ）作用 本発明によれば詳細な機構については明らかではない
が、アルミニウムは貴な電位でも不活性な金属であるの
で、アルミニウムを含有させたフェライト系ステンレス
鋼を正極缶構成部材として用いるとアルミニウムを含有
しない場合に比して腐蝕の発生が抑制される。尚、アル
ミニウムの効果は含有量が0.5〜10.0重量％の時に顕著
である。(E) Function Although the detailed mechanism is not clear according to the present invention, aluminum is an inactive metal even at a noble potential, so that a ferritic stainless steel containing aluminum is used as a positive electrode can constituent member. Corrosion generation is suppressed as compared with the case where aluminum is not contained. The effect of aluminum is remarkable when the content is 0.5 to 10.0% by weight.
（ヘ）実施例 以下本発明の一実施例を図面に基づき説明するに、第
１図において（１）はリチウム圧延板を所定形状に打抜
いた負極であってオーステナイト系ステンレス鋼（SUS3
04）よりなる負極缶（２）の内面に固着せる負極集電体
（３）に圧着されている。（４）は活物質としての二酸
化マンガンに、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を85:10:5の重量比で混合し、
この混合物を成型して得た正極であって、本発明の要旨
とする正極缶（５）の内側に固着せる正極集電体（６）
に圧接されている。(F) Embodiment One embodiment of the present invention will be described below with reference to the drawings. In FIG. 1, (1) is a negative electrode obtained by stamping a lithium rolled plate into a predetermined shape, and is an austenitic stainless steel (SUS3
04), which is crimped to a negative electrode current collector (3) fixed to the inner surface of a negative electrode can (2). (4) mixing manganese dioxide as an active material with carbon powder as a conductive agent and fluororesin powder as a binder in a weight ratio of 85: 10: 5,
A positive electrode obtained by molding this mixture, wherein the positive electrode current collector (6) is fixed to the inside of the positive electrode can (5) according to the present invention.
Is pressed against.
ここで正極缶（５）は鉄80重量％、クロム18重量％、
ニッケル０重量％及びアルミニウム２重量％の組成から
なるフェライト系ステンレス鋼で構成されている。Here, the positive electrode can (5) is composed of 80% by weight of iron, 18% by weight of chromium,
It is composed of a ferritic stainless steel having a composition of 0% by weight of nickel and 2% by weight of aluminum.
尚、（７）は非水電解液を含浸せるセパレータ、
（８）は絶縁パッキングである。(7) is a separator impregnated with a non-aqueous electrolyte,
(8) is an insulating packing.
下表は各種正極缶を用いた電池を60℃において３ケ月
保存後、周波数1KHZで測定した内部インピーダンスを比
較したものであり、（Ａ）は本発明電池、（Ｂ）はアル
ミニウムをほとんど含まないフェライト系ステンレス鋼
（SUS430）を正極缶に用いた第１の比較電池、（Ｃ）は
オーステナイト系ステンレス鋼（SUS304）を正極缶に用
いた第２の比較電池の場合を夫々示す。The following table compares the internal impedance measured at a frequency of 1 KHZ after storing batteries using various positive electrode cans at 60 ° C. for 3 months, (A) shows the battery of the present invention, and (B) contains almost no aluminum. A first comparative battery using a ferritic stainless steel (SUS430) for a positive electrode can, and (C) shows a second comparative battery using an austenitic stainless steel (SUS304) for a positive electrode can, respectively.
上表より本発明電池によると高温、保存後の内部イン
ピーダンスは低く、且バラツキも小さいことがわかる。 From the above table, it can be seen that according to the battery of the present invention, the internal impedance after storage at high temperature is low and the dispersion is small.
第２図は正極缶構成部材としてのフェライト系ステン
レスに含有せるアルミニウムの含有量と内部インピーダ
ンスとの関係を示す。尚、測定方法はアルミニウムの含
有量を種々変化させたフェライト系ステンレスを正極缶
とせる電池を夫々５ケづつ作成し、60℃で３カ月保存し
た後、周波数1KHZで内部インピーダンスを測定した。FIG. 2 shows the relationship between the content of aluminum contained in the ferritic stainless steel as a constituent member of the positive electrode can and the internal impedance. The measurement method was such that five batteries each having a positive electrode can made of ferritic stainless steel with various changes in the aluminum content were prepared, stored at 60 ° C. for 3 months, and then measured for internal impedance at a frequency of 1 KHZ.
第２図からアルミニウムの含有量としては0.5〜10.0
重量％の範囲が特に好ましいことがわかる。From FIG. 2, the content of aluminum is 0.5 to 10.0.
It turns out that the range of weight% is particularly preferable.
（ト）発明の効果 上述した如く、リチウムを活物質とする負極を備えた
非水電解液電池において、正極構成部材としてアルミニ
ウムを0.5〜10.0重量％含有せるフェライト系ステンレ
ス鋼を用いることにより、正極缶の腐蝕が抑制され保存
特性に優れた非水電解液電池を得ることができるもので
あり、その工業的価値は極めて大である。(G) Effect of the Invention As described above, in a non-aqueous electrolyte battery provided with a negative electrode using lithium as an active material, by using a ferritic stainless steel containing 0.5 to 10.0% by weight of aluminum as a positive electrode constituent member, The present invention can provide a nonaqueous electrolyte battery excellent in storage characteristics by suppressing corrosion of a can, and its industrial value is extremely large.
第１図は本発明電池の半断面図、第２図は正極缶を構成
するフェライト系ステンレス鋼のアルミニウムの含有量
と内部インピーダンスとの関係を示す図である。 （１）…負極、（２）…負極缶、（４）…正極、（５）
…正極缶、（７）…セパレータ、（８）…絶縁パッキン
グ。FIG. 1 is a half cross-sectional view of the battery of the present invention, and FIG. 2 is a view showing the relationship between the aluminum content of ferritic stainless steel constituting the positive electrode can and the internal impedance. (1): negative electrode, (2) negative electrode can, (4) positive electrode, (5)
... positive electrode can, (7) ... separator, (8) ... insulating packing.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭62−66560（ＪＰ，Ａ) 特開 昭60−41753（ＪＰ，Ａ) 特開 昭58−158856（ＪＰ，Ａ) 特公 昭59−19984（ＪＰ，Ｂ２) ────────────────────────────────────────────────── ─── Continuation of front page (56) References JP-A-62-66060 (JP, A) JP-A-60-41753 (JP, A) JP-A-58-158856 (JP, A) 19984 (JP, B2)
Claims (1)
液と、正極とを備え、正極缶構成部材としてアルミニウ
ムを0.5−10.0重量％含有するフェライト系ステンレス
鋼を用いることを特徴とする非水電解液電池。1. A positive electrode comprising a negative electrode using lithium as an active material, a non-aqueous electrolyte, and a positive electrode, wherein a ferrite stainless steel containing 0.5 to 10.0% by weight of aluminum is used as a positive electrode can constituent member. Non-aqueous electrolyte battery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60205559A JP2594033B2 (en) | 1985-09-18 | 1985-09-18 | Non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60205559A JP2594033B2 (en) | 1985-09-18 | 1985-09-18 | Non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6266559A JPS6266559A (en) | 1987-03-26 |
| JP2594033B2 true JP2594033B2 (en) | 1997-03-26 |
Family
ID=16508896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60205559A Expired - Lifetime JP2594033B2 (en) | 1985-09-18 | 1985-09-18 | Non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2594033B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4877678B2 (en) * | 2000-08-16 | 2012-02-15 | 日立マクセルエナジー株式会社 | Flat non-aqueous electrolyte secondary battery |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58158856A (en) * | 1982-03-16 | 1983-09-21 | Fuji Elelctrochem Co Ltd | Nonaqueous electrolytic battery |
| JPS5919984A (en) * | 1982-07-26 | 1984-02-01 | Olympus Optical Co Ltd | Toner cleaning device |
-
1985
- 1985-09-18 JP JP60205559A patent/JP2594033B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6266559A (en) | 1987-03-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |