JPH06150936A - Battery member - Google Patents
Battery memberInfo
- Publication number
- JPH06150936A JPH06150936A JP4325952A JP32595292A JPH06150936A JP H06150936 A JPH06150936 A JP H06150936A JP 4325952 A JP4325952 A JP 4325952A JP 32595292 A JP32595292 A JP 32595292A JP H06150936 A JPH06150936 A JP H06150936A
- Authority
- JP
- Japan
- Prior art keywords
- weight
- less
- nickel
- stainless steel
- 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.)
- Pending
Links
Classifications
-
- 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
- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明はポータブル機器の駆動用
電源としての有機電解液電池の正極側の電池部材の改良
に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a battery member on the positive electrode side of an organic electrolyte battery as a power source for driving a portable device.
【０００２】[0002]
【従来の技術】近年、ラップトップコンピューター，ワ
ープロ等の携帯情報機器、カメラ一体型ＶＴＲ，液晶テ
レビ等のＡＶ機器や携帯電話等の移動通信機器等々のよ
うに、電源としての電池に対し大電流、大出力を要求す
る機器が多種多様に発達し、より高エネルギー密度の二
次電池が要望されている。さらに、機器が薄形化、小型
化するにつれ電池も薄形化、小型化が要求される。2. Description of the Related Art In recent years, a large current is supplied to a battery as a power source such as a laptop computer, a portable information device such as a word processor, a camera-integrated VTR, an AV device such as a liquid crystal television, a mobile communication device such as a mobile phone, and the like. A wide variety of devices that require high output have been developed, and secondary batteries with higher energy density have been demanded. Further, as devices become thinner and smaller, batteries are also required to be thinner and smaller.
【０００３】そして、それらの要求に応えるべく、種々
の新しい二次電池が提案されており、そのなかで、特開
昭５５−１３６１３１に開示のごとく、正極活物質にＬ
ｉxＣｏＯ2 を用いたものや、特開昭６２−２６４５６
０に開示のごとく、ＬｉＮｉx Ｃｏ(1-x) （但し０＜ｘ
＜０．２７）を用いたもの、また、特開昭６３−２１１
５６４に開示のごとくＬｉx （Ｃｏ1-y Ｆｅy ）Ｏ
2 （式中、ｘは０〜１、ｙは０．０５〜０．３）等を用
いた有機電解液二次電池の研究開発が近年盛んに行われ
ている。In order to meet those demands, various new secondary batteries have been proposed. Among them, as disclosed in JP-A-55-136131, L is used as a positive electrode active material.
those using i x CoO 2 and JP-A-62-26456.
0, LiNi x Co (1-x) (where 0 <x
<0.27), and JP-A-63-212
Li x (Co 1-y Fe y ) O as disclosed in US Pat.
2 (wherein, x is 0 to 1, y is 0.05 to 0.3) and the like have been actively researched and developed in recent years.
【０００４】それらの活物質を用いた電池は平均作動電
圧が３．６Ｖ程度と、ニッケル−カドミウム電池の１．
２Ｖと比較して約３倍の高い電圧を持つことから、電池
のより一層の高エネルギー密度化及び小型化が期待でき
る。Batteries using these active materials have an average operating voltage of about 3.6 V, which is the same as that of nickel-cadmium batteries.
Since it has a voltage about 3 times higher than that of 2V, it can be expected that the battery has a higher energy density and a smaller size.
【０００５】しかし、これらの活物質を正極に用いた場
合、充電するときには４Ｖ以上の高電圧を印加すること
から、これらの素子に用いられる正極側の集電体やセル
ハウジング等の材料には高度の電気化学的耐食性が要求
される。その材料として白金、金などの貴金属、アルミ
ニウム、タンタルなどのバルブ金属、あるいはカーボン
材料などが挙げられるが、これらは高度の耐食性はある
ものの、加工性、機械的強度、コストなどを満足できる
材料ではない。However, when these active materials are used for the positive electrode, a high voltage of 4 V or more is applied during charging, so that the materials for the positive electrode side current collectors and cell housings used for these devices are A high degree of electrochemical corrosion resistance is required. Examples of such materials include precious metals such as platinum and gold, valve metals such as aluminum and tantalum, and carbon materials.These materials have a high degree of corrosion resistance, but are not materials that can satisfy workability, mechanical strength, cost, etc. Absent.
【０００６】[0006]
【発明が解決しようとする課題】よって、電池電圧が４
Ｖ以上印加されても溶解することなく、かつ、実用性を
備えた電池部材を得ることが課題となる。Therefore, the battery voltage is 4
The problem is to obtain a battery member that is practical and does not dissolve even when a voltage of V or more is applied.
【０００７】[0007]
【課題を解決するための手段】本発明はこのような課題
を解決するために鋭意工夫を重ねた結果、ステンレス鋼
を構成する元素のなかで、ニッケルとモリブデンが電気
化学的耐食性に大きく寄与することを見いだし、特にニ
ッケル１１〜１７重量％以上、モリブデン３〜６重量％
を含むステンレス鋼を正極部材に用いることにより高電
圧においても安定な有機電解液電池を提供せんとするも
のである。The present invention has been devised to solve such problems, and as a result, nickel and molybdenum, among the elements constituting stainless steel, contribute greatly to the electrochemical corrosion resistance. Found that nickel 11-17% by weight or more, molybdenum 3-6% by weight
The present invention provides a stable organic electrolyte battery even at a high voltage by using a stainless steel containing a positive electrode member.
【０００８】最初に予備実験として、各種ステンレス鋼
の電流−電位曲線を測定することにより、ステンレス鋼
を構成している元素の電気化学的耐食性に対する効果に
ついて明らかにした。First, as a preliminary experiment, the effect of the elements constituting the stainless steel on the electrochemical corrosion resistance was clarified by measuring the current-potential curves of various stainless steels.
【０００９】測定方法は次のようにして行った。試験装
置を図１に示す。（１１）は試料金属で、すべてエメリ
ー研磨紙（＃１０００）で研磨した後、アセトン中での
超音波洗浄処理を行った。試料金属片の寸法は１０mm×
５０mm，厚み０．２mmであるが、実際に電極として作用
する部分は片面の１０mm×１０mmで、残りの部分はフッ
素樹脂テープ（１２）で被覆した。（１３）は材質にニ
ッケルを用いた対極で、寸法は３０mm×３０mm、厚み
０．３mm、（１４）はリチウム金属を用いた参照電極
で、寸法は１０mm×１０mm、厚み０．２mmである。（１
５）はガラス製の電解セルである。（１６）は電解セル
（１５）の蓋である。（１７）は電解液で、エチレンカ
ーボネートとジエチルカーボネートを体積比で１：１に
混合した溶媒に六フッ化燐酸リチウムを１モル／リット
ルの割合で溶解したものである。The measuring method was as follows. The test apparatus is shown in FIG. (11) is a sample metal, which was all polished with emery polishing paper (# 1000) and then subjected to ultrasonic cleaning treatment in acetone. The size of the sample metal piece is 10 mm ×
Although the thickness is 50 mm and the thickness is 0.2 mm, the portion actually acting as an electrode is 10 mm × 10 mm on one side, and the remaining portion is covered with a fluororesin tape (12). (13) is a counter electrode using nickel as a material, the dimensions are 30 mm × 30 mm and thickness 0.3 mm, and (14) is a reference electrode using lithium metal, the dimensions are 10 mm × 10 mm and thickness 0.2 mm. (1
5) is an electrolytic cell made of glass. (16) is a lid of the electrolytic cell (15). (17) is an electrolytic solution in which lithium hexafluorophosphate is dissolved at a ratio of 1 mol / liter in a solvent in which ethylene carbonate and diethyl carbonate are mixed at a volume ratio of 1: 1.
【００１０】電流−電位曲線は試料金属を定電位条件下
でアノード分極することにより測定した。また、このと
き、電流が流れはじめる電位をその試料金属の溶解電位
とした。この測定は露点−６０℃以下に保ったアルゴン
ガスグローボックス中で実施した。The current-potential curve was measured by anodic polarization of the sample metal under constant potential conditions. At this time, the potential at which the current started to flow was defined as the dissolution potential of the sample metal. This measurement was carried out in an argon gas glow box maintained at a dew point of -60 ° C or lower.
【００１１】まず、ステンレス鋼中に含まれるクロムの
影響を調べた。First, the influence of chromium contained in stainless steel was investigated.
【００１２】試料金属として、クロムが１１．５〜１３
重量％，炭素が０．１５重量％以下，シリコンが０．５
０重量％以下，マンガンが１．００重量％以下を含み残
部が鉄からなるステンレス鋼（１）、クロムが１６〜１
８重量％，炭素が０．１２重量％以下，シリコンが０．
７５重量％以下，マンガンが１．００重量％以下を含み
残部が鉄からなるステンレス鋼（２）、クロムが２３〜
２７重量％，炭素が０．２０重量％以下，シリコンが１
重量％以下，マンガンが１．００重量％以下を含み残部
が鉄からなるステンレス鋼（３）を定電位条件下でアノ
ード分極した。結果を図２に示す。図２より、クロムの
含有量の違いによる溶解電位の差は認められなかった。As a sample metal, chromium is 11.5 to 13
Wt%, carbon less than 0.15 wt%, silicon 0.5
0% by weight or less, manganese 1.00% by weight or less and the balance iron, stainless steel (1), chromium 16 to 1
8% by weight, carbon less than 0.12% by weight, silicon less than 0.1%.
75% by weight or less, manganese 1.00% by weight or less and the balance being iron, stainless steel (2), chromium is 23 to
27 wt%, carbon less than 0.20 wt%, silicon 1
A stainless steel (3) containing 3 wt% or less and 1.00 wt% or less of manganese and the balance being iron was subjected to anodic polarization under constant potential conditions. The results are shown in Figure 2. From FIG. 2, no difference in the dissolution potential due to the difference in the chromium content was observed.
【００１３】次に、ステンレス鋼中に含まれるニッケル
の影響を調べた。Next, the influence of nickel contained in stainless steel was investigated.
【００１４】試料金属としてクロムが１６〜１８重量
％，ニッケルが６〜８重量％，炭素が０．１５重量％以
下，シリコンが１．００重量％以下，マンガンが２．０
０重量％以下を含み残部が鉄からなるステンレス鋼
（４）、クロムが１８〜２０重量％，ニッケルが８〜１
０．５重量％，炭素が０．０８重量％以下，シリコンが
１．００重量％以下，マンガンが２．００重量％以下を
含み残部が鉄からなるステンレス鋼（５）、クロムが１
７〜１９重量％Ｃｒ，ニッケルが１０．５〜１３重量％
Ｎｉ，炭素が０．１２重量％以下，シリコンが１．００
重量％以下，マンガンが２．００重量％以下を含み残部
が鉄からなるステンレス鋼（６）を定電位条件下でアノ
ード分極した。結果を図３に示す。図３より、ニッケル
の含有量が多くなるにしたがい溶解電位が高くなってい
る。これより、ニッケルは電気化学的耐食性に寄与する
ことが判明した。As a sample metal, chromium is 16 to 18% by weight, nickel is 6 to 8% by weight, carbon is 0.15% by weight or less, silicon is 1.00% by weight or less, and manganese is 2.0.
Stainless steel containing 0% by weight or less and the balance being iron (4), chromium 18 to 20% by weight, nickel 8 to 1
0.5% by weight, 0.08% by weight or less of carbon, 1.00% by weight or less of silicon, 2.00% by weight or less of manganese, and the balance is iron.
7 to 19% by weight Cr, nickel 10.5 to 13% by weight
Ni, carbon 0.12 wt% or less, silicon 1.00
Stainless steel (6) containing less than 20% by weight of manganese and less than 2.00% by weight of manganese and the balance of iron was subjected to anodic polarization under constant potential conditions. The results are shown in Fig. 3. From FIG. 3, the dissolution potential increases as the nickel content increases. From this, it was found that nickel contributes to the electrochemical corrosion resistance.
【００１５】ステンレス鋼中に含まれるモリブデンの影
響を調べた。The effect of molybdenum contained in stainless steel was investigated.
【００１６】試料金属としてクロムが１７〜１９重量
％，ニッケルが１０．５〜１３重量％，炭素が０．１２
重量％以下，シリコンが１．００重量％以下，マンガン
が２．００重量％以下を含み残部が鉄からなるステンレ
ス鋼（６）、クロムが１６〜１８重量％，ニッケルが１
０〜１４重量％，モリブデンが２〜３重量％，炭素が
０．０８重量％以下，シリコンが１．００重量％以下，
マンガンが２．００重量％以下を含み残部が鉄からなる
ステンレス鋼（７）を定電位条件下でアノード分極し
た。結果を図４に示す。図４より、モリブデンを添加す
ることにより電気化学的耐食性が向上することが判明し
た。As a sample metal, chromium is 17 to 19% by weight, nickel is 10.5 to 13% by weight, and carbon is 0.12.
Stainless steel (6) containing less than 1% by weight, less than 1.00% by weight of silicon, less than 2.00% by weight of manganese and the balance being iron, 16-18% by weight of chromium, 1% of nickel.
0-14% by weight, molybdenum 2-3% by weight, carbon 0.08% by weight or less, silicon 1.00% by weight or less,
A stainless steel (7) containing 2.00% by weight or less of manganese and the balance of iron was anodically polarized under a constant potential condition. The results are shown in Fig. 4. From FIG. 4, it was found that the addition of molybdenum improves the electrochemical corrosion resistance.
【００１７】以上の結果より、ニッケルとモリブデンが
電気化学的耐食性に寄与することが明らかとなった。こ
れをもとに、ニッケルおよびモリブデンの含有量を種々
変えたステンレス鋼の電気化学的耐食性を評価した。From the above results, it became clear that nickel and molybdenum contribute to the electrochemical corrosion resistance. Based on this, the electrochemical corrosion resistance of stainless steels with various contents of nickel and molybdenum was evaluated.
【００１８】試料金属としてクロムが１８〜２０重量
％，ニッケルが１１〜１５重量％，モリブデンが３〜４
重量％，炭素が０．０８重量％以下，シリコンが１．０
０重量％以下，マンガンが２．００重量％以下を含み残
部が鉄からなるステンレス鋼（８）、クロムが１６〜１
８重量％，ニッケルが１５〜１７重量％，モリブデンが
４．５〜６重量％，炭素が０．０８重量％以下，シリコ
ンが１．００重量％以下，マンガンが２．００重量％以
下を含み残部が鉄からなるステンレス鋼（９）を定電位
条件下でアノード分極した。結果を図５に示す。図５に
示すように、モリブデンを３〜４重量％，ニッケルを１
１〜１５重量％含んだステンレス鋼（８）およびモリブ
デンを４．５〜６重量％，ニッケルを１５〜１７重量％
含んだステンレス鋼（９）は電気化学的耐食性が著しく
向上していることがわかる。As a sample metal, chromium is 18 to 20% by weight, nickel is 11 to 15% by weight, and molybdenum is 3 to 4%.
% By weight, carbon less than 0.08% by weight, silicon 1.0
Stainless steel (0) containing 0 wt% or less, manganese 2.00 wt% or less, and the balance iron, and chromium 16 to 1
8% by weight, 15-17% by weight of nickel, 4.5-6% by weight of molybdenum, 0.08% by weight or less of carbon, 1.00% by weight or less of silicon, 2.00% by weight or less of manganese Stainless steel (9) with the balance being iron was subjected to anodic polarization under constant potential conditions. Results are shown in FIG. As shown in FIG. 5, 3-4% by weight of molybdenum and 1% of nickel are used.
4.5 to 6% by weight of stainless steel (8) and molybdenum containing 1 to 15% by weight, 15 to 17% by weight of nickel
It can be seen that the contained stainless steel (9) has remarkably improved electrochemical corrosion resistance.
【００１９】[0019]
【作用】正極部材にニッケルを１１〜１７重量％、モリ
ブデンを３〜６重量％含むステンレス鋼を用いることに
より電気化学的耐食性が向上し、４Ｖ以上の電圧が印加
される有機電解液電池に使用しても電池部材の溶解がな
い。The use of stainless steel containing 11 to 17% by weight of nickel and 3 to 6% by weight of molybdenum for the positive electrode member improves the electrochemical corrosion resistance and is used for an organic electrolyte battery to which a voltage of 4 V or more is applied. Even if it does not dissolve the battery member.
【００２０】[0020]
【実施例】以下、本発明を図６に示すような有機電解液
電池を例にして詳細に説明する。 ［実施例１］図６は本発明の実施例における電池の構造
図である。EXAMPLES The present invention will be described in detail below by taking an organic electrolyte battery as shown in FIG. 6 as an example. [Embodiment 1] FIG. 6 is a structural view of a battery in an embodiment of the present invention.
【００２１】図６において（２１）は正極であり、次の
ようにして作製した。まず、活物質であるＬｉＣｏＯ2
８５重量部にグラファイト１０重量部、ポリフッ化ビ
ニリデン５重量部をＮ−メチル−２−ピロリドンを加え
て混合してスラリー状合剤を作った。それを板厚み０．
１mmのクロムが１８〜２０重量％，ニッケルが１１〜１
５重量％，モリブデンが３〜４重量％，炭素が０．０８
重量％以下，シリコンが１．００重量％以下，マンガン
が２．００重量％以下を含み残部が鉄からなるステンレ
ス鋼（８）をエキスパンド加工した正極集電体に塗布
し、乾燥、圧延を施した後、厚み０．４７mm、幅１４m
m、長さ５２mmの短冊状の極板を得た。正極１枚の活物
質の重量は０．８２g で理論電気容量は２２５mAh であ
るが、実際充放電が行われるのは０．４価程度であるの
で放電電気量は９０mAh となる。（２２）は負極で、平
均粒径６ミクロンの塊状グラファイトを９４重量部、結
着剤としてのポリフッ化ビニリデン６重量部を加え、Ｎ
−メチル−２−ピロリドンを加えて混合してスラリー状
合剤を作り、それを厚み１．０２mm、目付け３５０g/cm
2 のニッケルの発泡体に塗布し、乾燥、圧延を施した
後、厚み０．３５mm、幅１４mm、長さ５２mmの短冊状の
極板を得た。負極１枚の活物質の重量は０．３５ｇであ
る。In FIG. 6, (21) is a positive electrode, which was manufactured as follows. First, the active material LiCoO 2
To 85 parts by weight of graphite, 10 parts by weight of graphite and 5 parts by weight of polyvinylidene fluoride were added and mixed with N-methyl-2-pyrrolidone to prepare a slurry mixture. The plate thickness is 0.
18 to 20% by weight of 1 mm of chromium and 11 to 1 of nickel
5 wt%, molybdenum 3-4 wt%, carbon 0.08
Wt% or less, 1.00 wt% or less of silicon, 2.00 wt% or less of manganese, and the balance is iron. Stainless steel (8) is applied to the expanded positive electrode current collector, dried and rolled. After that, thickness 0.47mm, width 14m
A strip-shaped electrode plate having a length of m and a length of 52 mm was obtained. Although the weight of the active material of one positive electrode is 0.82 g and the theoretical electric capacity is 225 mAh, the amount of electricity discharged is 90 mAh because the actual charge and discharge is about 0.4 valence. (22) is a negative electrode, to which 94 parts by weight of massive graphite having an average particle size of 6 microns and 6 parts by weight of polyvinylidene fluoride as a binder were added, and N
-Methyl-2-pyrrolidone was added and mixed to form a slurry mixture, which had a thickness of 1.02 mm and a basis weight of 350 g / cm.
After being applied to the nickel foam of No. 2 , dried and rolled, a strip-shaped electrode plate having a thickness of 0.35 mm, a width of 14 mm and a length of 52 mm was obtained. The weight of the active material for one negative electrode is 0.35 g.
【００２２】正極と負極の電極構成は正極が４枚、負極
が５枚である。（２３）はセパレータで、厚み０．１３
mm、目付け５０ g/m2 のポリプロピレン製不織布を用
い、（２１）の正極に被覆し、端部をヒートシールし
た。The positive electrode and the negative electrode are composed of four positive electrodes and five negative electrodes. (23) is a separator having a thickness of 0.13
A polypropylene non-woven fabric having a weight of 50 g / m 2 and a weight of 50 g / m 2 was coated on the positive electrode of (21) and the ends were heat-sealed.
【００２３】これらの電極群を、鉄にニッケルメッキを
施した電池ケース（２４）に挿入した後、それぞれの正
極から取り出したステンレス鋼（８）で作製したリード
（２５）を束ねて鉄にニッケルを施した封口板（２６）
に、ガラスシール（２７）を介して埋め込んだハーメチ
ック端子（２８）にスポット溶接した。また、各負極か
ら取り出したニッケル製の負極リード（２９）は、束ね
て電池ケース（２４）にスポット溶接した。After inserting these electrode groups into a battery case (24) in which iron is plated with nickel, the leads (25) made of stainless steel (8) taken out from the respective positive electrodes are bundled to form nickel on the iron. Sealing plate (26)
Then, spot welding was performed on the hermetic terminal (28) embedded through the glass seal (27). The nickel negative electrode leads (29) taken out from each negative electrode were bundled and spot-welded to the battery case (24).
【００２４】これらの作業を行った後、エチレンカーボ
ネートとジエチルカーボネートを体積比で１：１に混合
した溶媒に六フッ化燐酸リチウムを１モル／リットルの
割合で溶解した電解液を注入し、封口板（２６）を電池
ケース（２４）上端の開口部にはめ込み、周囲をレーザ
ーで溶接した。こうして組立てた電池の寸法は、厚み６
mm、幅１４mm、長さ６０mmである。但し、長さにおいて
は、正極端子部分の寸法は除いている。After carrying out these operations, an electrolytic solution prepared by dissolving lithium hexafluorophosphate at a ratio of 1 mol / liter in a solvent in which ethylene carbonate and diethyl carbonate are mixed at a volume ratio of 1: 1 is injected and the sealing is performed. The plate (26) was fitted into the opening at the upper end of the battery case (24), and the periphery was welded with a laser. The size of the assembled battery is 6
mm, width 14 mm, length 60 mm. However, in terms of length, the dimensions of the positive electrode terminal portion are excluded.
【００２５】このようにして作成した電池において、電
流１００mAで充電終止電圧４．２Ｖ、放電終止電圧２．
７Ｖで５００サイクル繰り返した後、電池を解体し正極
集電体およびリードの腐食状態を顕微鏡で観察した。そ
の結果、腐食は観察されなかった。 ［実施例２］クロムが１６〜１８重量％，ニッケルが１
５〜１７重量％，モリブデンが４．５〜６重量％，炭素
が０．０８重量％以下，シリコンが１．００重量％以
下，マンガンが２．００重量％以下を含み残部が鉄から
なるステンレス鋼（９）を正極集電体およびリードとし
て用いる以外は実施例１と同様にして電池を組立て、充
放電を実施例１と同じく５００サイクル繰り返した。そ
して、試験後の電池を解体し、集電体およびリードの腐
食を顕微鏡で観察した。その結果、腐食は観察されなか
った。 ［比較例］比較として、クロムが１１．５〜１３重量
％，炭素が０．１５重量％以下，シリコンが０．５０重
量％以下，マンガンが１．００重量％以下を含み残部が
鉄からなるステンレス鋼（１）、クロムが１６〜１８重
量％，炭素が０．１２重量％以下，シリコンが０．７５
重量％以下，マンガンが１．００重量％以下を含み残部
が鉄からなるステンレス鋼（２）、クロムが２３〜２７
重量％，炭素が０．２０重量％以下，シリコンが１重量
％以下，マンガンが１．００重量％以下を含み残部が鉄
からなるステンレス鋼（３）、クロムが１６〜１８重量
％，ニッケルが６〜８重量％，炭素が０．１５重量％以
下，シリコンが１．００重量％以下，マンガンが２．０
０重量％以下を含み残部が鉄からなるステンレス鋼
（４）、クロムが１８〜２０重量％，ニッケルが８〜１
０．５重量％，炭素が０．０８重量％以下，シリコンが
１．００重量％以下，マンガンが２．００重量％以下を
含み残部が鉄からなるステンレス鋼（５）、クロムが１
７〜１９重量％Ｃｒ，ニッケルが１０．５〜１３重量％
Ｎｉ，炭素が０．１２重量％以下，シリコンが１．００
重量％以下，マンガンが２．００重量％以下を含み残部
が鉄からなるステンレス鋼（６）、クロムが１６〜１８
重量％，ニッケルが１０〜１４重量％，モリブデンが２
〜３重量％，炭素が０．０８重量％以下，シリコンが
１．００重量％以下，マンガンが２．００重量％以下を
含み残部が鉄からなるステンレス鋼（７）を正極集電体
およびリードとして用いる以外は実施例と同様にして電
池を組立て、充放電を実施例と同じく５００サイクル繰
り返した。そして、試験後の電池を解体し、集電体およ
びリードの腐食を顕微鏡で観察した。その結果、集電体
およびリード表面に多くの孔食が観察された。また、負
極側の金属部材表面には析出物が観察された。In the battery thus produced, the charge end voltage is 4.2 V and the discharge end voltage is 2. 0 at a current of 100 mA.
After repeating 500 cycles at 7V, the battery was disassembled and the corrosion state of the positive electrode current collector and the lead was observed with a microscope. As a result, no corrosion was observed. [Example 2] 16 to 18% by weight of chromium and 1 of nickel
5 to 17% by weight, 4.5 to 6% by weight of molybdenum, 0.08% by weight or less of carbon, 1.00% by weight or less of silicon, 2.00% by weight or less of manganese, and the balance stainless steel consisting of iron. A battery was assembled in the same manner as in Example 1 except that steel (9) was used as the positive electrode current collector and the lead, and charging / discharging was repeated for 500 cycles as in Example 1. Then, the battery after the test was disassembled, and corrosion of the current collector and the lead was observed with a microscope. As a result, no corrosion was observed. [Comparative Example] For comparison, chromium is 11.5 to 13% by weight, carbon is 0.15% by weight or less, silicon is 0.50% by weight or less, manganese is 1.00% by weight or less, and the balance is iron. Stainless steel (1), 16-18 wt% chromium, 0.12 wt% or less carbon, 0.75 silicon
Stainless steel (2) containing less than 1% by weight of manganese and less than 1.00% by weight of manganese and the balance being iron, and chromium of 23 to 27.
%, Carbon is 0.20 wt% or less, silicon is 1 wt% or less, manganese is 1.00 wt% or less, and the balance is stainless steel (3) consisting of iron, chromium is 16 to 18 wt%, nickel is 6-8 wt%, carbon less than 0.15 wt%, silicon less than 1.00 wt%, manganese 2.0
Stainless steel containing 0% by weight or less and the balance being iron (4), chromium 18 to 20% by weight, nickel 8 to 1
0.5% by weight, 0.08% by weight or less of carbon, 1.00% by weight or less of silicon, 2.00% by weight or less of manganese, and the balance is iron.
7 to 19% by weight Cr, nickel 10.5 to 13% by weight
Ni, carbon 0.12 wt% or less, silicon 1.00
Stainless steel (6) with weight% or less, manganese 2.00% or less and the balance being iron, and chromium 16 to 18
% By weight, nickel 10-14% by weight, molybdenum 2
~ 3 wt%, carbon 0.08 wt% or less, silicon 1.00 wt% or less, manganese 2.00 wt% or less, and the balance stainless steel (7) positive electrode current collector and lead A battery was assembled in the same manner as in the example except that it was used as above, and charging / discharging was repeated 500 cycles as in the example. Then, the battery after the test was disassembled, and corrosion of the current collector and the lead was observed with a microscope. As a result, many pitting corrosions were observed on the surface of the current collector and the lead. In addition, a deposit was observed on the surface of the metal member on the negative electrode side.
【００２６】[0026]
【発明の効果】以上述べたように、本発明によれば、正
極部材にニッケルを１１〜１７重量％、モリブデンを
３．５〜６重量％含むステンレス鋼を用いることによ
り、４Ｖ以上の電圧が印加されても電池部材の溶解がな
い優れた特性を有する有機電解液電池を提供できる。As described above, according to the present invention, by using stainless steel containing 11 to 17% by weight of nickel and 3.5 to 6% by weight of molybdenum for the positive electrode member, a voltage of 4 V or more can be obtained. It is possible to provide an organic electrolyte battery having excellent characteristics in which the battery member does not dissolve even when applied.
【図１】ステンレス鋼の電流−電位曲線を測定する試験
装置を示した図。FIG. 1 is a diagram showing a test apparatus for measuring a current-potential curve of stainless steel.
【図２】ステンレス鋼（１）、（２）及び（３）の電流
−電位曲線。FIG. 2 is a current-potential curve of stainless steels (1), (2) and (3).
【図３】ステンレス鋼（４）、（５）及び（６）の電流
電位曲線。FIG. 3: Current-potential curves of stainless steel (4), (5) and (6).
【図４】ステンレス鋼（６）及び（７）の電流−電位曲
線。FIG. 4: Current-potential curves for stainless steels (6) and (7).
【図５】ステンレス鋼（８）及び（９）の電流−電位曲
線。FIG. 5: Current-potential curves for stainless steel (8) and (9).
【図６】本発明の実施例および比較例における電池の構
造断面図。FIG. 6 is a structural cross-sectional view of batteries in Examples and Comparative Examples of the present invention.
１１ 試料金属 １２ フッ素樹脂テープ １３ ニッケルの対極 １４ リチウムの参照極 １５ 電解セル １６ 電解セルの蓋 １７ 電解液 ２１ 正極 ２２ 負極 ２３ セパレータ ２４ 電池ケース ２５ 正極リード ２６ 封口板 ２７ ガラスシール ２８ ハーメチック端子 ２９ 負極リード 11 Sample Metal 12 Fluorocarbon Resin Tape 13 Nickel Counter Electrode 14 Lithium Reference Electrode 15 Electrolytic Cell 16 Electrolytic Cell Lid 17 Electrolyte 21 Positive Electrode 22 Negative Electrode 23 Separator 24 Battery Case 25 Positive Electrode Lead 26 Sealing Plate 27 Glass Seal 28 Hermetic Terminal 29 Negative Electrode Reed
Claims (1)
極側に用いられる電池部材であって、クロムが１６〜２
０重量％、ニッケルが１１〜１７重量％、モリブデンが
３〜６重量％、炭素が０．０８重量％以下、シリコンが
１重量％以下、マンガンが２重量％以下で残部が鉄から
なるステンレス鋼であることを特徴とする電池部材。1. A battery member used on the positive electrode side of an organic electrolyte battery having a battery voltage of 4 V or more, wherein chromium is 16 to 2
0% by weight, 11-17% by weight of nickel, 3-6% by weight of molybdenum, 0.08% by weight or less of carbon, 1% by weight or less of silicon, 2% by weight or less of manganese, and the balance stainless steel consisting of iron. Is a battery member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4325952A JPH06150936A (en) | 1992-11-11 | 1992-11-11 | Battery member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4325952A JPH06150936A (en) | 1992-11-11 | 1992-11-11 | Battery member |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06150936A true JPH06150936A (en) | 1994-05-31 |
Family
ID=18182444
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4325952A Pending JPH06150936A (en) | 1992-11-11 | 1992-11-11 | Battery member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06150936A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000188128A (en) * | 1998-12-24 | 2000-07-04 | Mitsubishi Chemicals Corp | Nonaqueous electrolyte secondary battery |
| JP2006164527A (en) * | 2004-12-02 | 2006-06-22 | Matsushita Electric Ind Co Ltd | Flat type nonaqueous electrolytic solution battery |
| JP2007328978A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Nonaqueous electrolyte secondary battery |
| JP2009076467A (en) * | 2008-11-28 | 2009-04-09 | Mitsubishi Chemicals Corp | Nonaqueous electrolyte secondary battery |
-
1992
- 1992-11-11 JP JP4325952A patent/JPH06150936A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000188128A (en) * | 1998-12-24 | 2000-07-04 | Mitsubishi Chemicals Corp | Nonaqueous electrolyte secondary battery |
| JP2006164527A (en) * | 2004-12-02 | 2006-06-22 | Matsushita Electric Ind Co Ltd | Flat type nonaqueous electrolytic solution battery |
| JP2007328978A (en) * | 2006-06-07 | 2007-12-20 | Matsushita Electric Ind Co Ltd | Nonaqueous electrolyte secondary battery |
| JP2009076467A (en) * | 2008-11-28 | 2009-04-09 | Mitsubishi Chemicals Corp | Nonaqueous electrolyte secondary battery |
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