JPH04121962A - Battery member - Google Patents
Battery memberInfo
- Publication number
- JPH04121962A JPH04121962A JP2238973A JP23897390A JPH04121962A JP H04121962 A JPH04121962 A JP H04121962A JP 2238973 A JP2238973 A JP 2238973A JP 23897390 A JP23897390 A JP 23897390A JP H04121962 A JPH04121962 A JP H04121962A
- Authority
- JP
- Japan
- Prior art keywords
- battery
- positive electrode
- weight
- electrode member
- stainless steel
- 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.)
- Granted
Links
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 18
- 229910052759 nickel Inorganic materials 0.000 claims abstract description 17
- 239000010935 stainless steel Substances 0.000 claims abstract description 17
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052804 chromium Inorganic materials 0.000 claims abstract description 16
- 239000011651 chromium Substances 0.000 claims abstract description 16
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims abstract description 13
- 229910052750 molybdenum Inorganic materials 0.000 claims abstract description 13
- 239000011733 molybdenum Substances 0.000 claims abstract description 13
- 229910052742 iron Inorganic materials 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 21
- 238000005260 corrosion Methods 0.000 abstract description 21
- 229910032387 LiCoO2 Inorganic materials 0.000 abstract 1
- 229910002993 LiMnO2 Inorganic materials 0.000 abstract 1
- 229910013716 LiNi Inorganic materials 0.000 abstract 1
- 229910003005 LiNiO2 Inorganic materials 0.000 abstract 1
- 239000013543 active substance Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 description 11
- 239000002184 metal Substances 0.000 description 11
- -1 Li8W○1 Chemical class 0.000 description 8
- 239000007774 positive electrode material Substances 0.000 description 6
- 238000007599 discharging Methods 0.000 description 5
- YEJRWHAVMIAJKC-UHFFFAOYSA-N 4-Butyrolactone Chemical compound O=C1CCCO1 YEJRWHAVMIAJKC-UHFFFAOYSA-N 0.000 description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 3
- 239000003792 electrolyte Substances 0.000 description 3
- 229910001496 lithium tetrafluoroborate Inorganic materials 0.000 description 3
- 239000002244 precipitate Substances 0.000 description 3
- 229910052723 transition metal Inorganic materials 0.000 description 3
- 150000003624 transition metals Chemical class 0.000 description 3
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910045601 alloy Inorganic materials 0.000 description 2
- 239000000956 alloy Substances 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 239000003575 carbonaceous material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000008151 electrolyte solution Substances 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 239000010410 layer Substances 0.000 description 2
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000007773 negative electrode material Substances 0.000 description 2
- FWLUTJHBRZTAMP-UHFFFAOYSA-N B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+] Chemical compound B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.B([O-])([O-])F.[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+].[Li+] FWLUTJHBRZTAMP-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- KMTRUDSVKNLOMY-UHFFFAOYSA-N Ethylene carbonate Chemical compound O=C1OCCO1 KMTRUDSVKNLOMY-UHFFFAOYSA-N 0.000 description 1
- 229910015645 LiMn Inorganic materials 0.000 description 1
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000006230 acetylene black Substances 0.000 description 1
- 239000011149 active material Substances 0.000 description 1
- HSFWRNGVRCDJHI-UHFFFAOYSA-N alpha-acetylene Natural products C#C HSFWRNGVRCDJHI-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229920001940 conductive polymer Polymers 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 229920001973 fluoroelastomer Polymers 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 229910001500 lithium hexafluoroborate Inorganic materials 0.000 description 1
- MHCFAGZWMAWTNR-UHFFFAOYSA-M lithium perchlorate Chemical compound [Li+].[O-]Cl(=O)(=O)=O MHCFAGZWMAWTNR-UHFFFAOYSA-M 0.000 description 1
- 229910001486 lithium perchlorate Inorganic materials 0.000 description 1
- MCVFFRWZNYZUIJ-UHFFFAOYSA-M lithium;trifluoromethanesulfonate Chemical compound [Li+].[O-]S(=O)(=O)C(F)(F)F MCVFFRWZNYZUIJ-UHFFFAOYSA-M 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000011356 non-aqueous organic solvent Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 229920001197 polyacetylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
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
- Battery Electrode And Active Subsutance (AREA)
- Sealing Battery Cases Or Jackets (AREA)
- Secondary Cells (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野］ 本発明は非水電池の正極部材に関するものである。[Detailed description of the invention] [Industrial application field] The present invention relates to a positive electrode member for a non-aqueous battery.
さらに詳しくは、本発明は非水電池に用いる正極部材に
関するものであり、特定の組成を有するステンレス鋼、
即ち、クロム、モリブデン、ニッケル、鉄を主成分とす
る合金が優れた耐電圧性を有することを見出だし、とく
に一般式Ａ ｘ Ｍ ｙ ＮｚＯ，、（Ａはアルカリ金
属の少な（とも１種を表し、Ｍは遷移金属の少なくとも
１種を表し、ＮはＡＩ、 ＩｎＸＳｎの群から選ばれた
少なくとも１種を表し、ｘ、ｙ、ｚは各々０，０５≦Ｘ
≦１．１０．０．８５≦ｙ≦１．００．０≦Ｚ≦０．１
０の数である）を正極活物質とする起電力の高い非水電
池の正極部材に用いた場合優れた電池特性が得られるこ
とを見出だした。More specifically, the present invention relates to a positive electrode member used in a non-aqueous battery, and includes stainless steel having a specific composition,
That is, it was discovered that alloys whose main components are chromium, molybdenum, nickel, and iron have excellent voltage resistance, and in particular, the general formula A M represents at least one type of transition metal, N represents at least one type selected from the group of AI and InXSn, and x, y, and z each satisfy 0,05≦X
≦1.10.0.85≦y≦1.00.0≦Z≦0.1
It has been found that excellent battery characteristics can be obtained when used in a positive electrode member of a non-aqueous battery with a high electromotive force, which uses a positive electrode active material of 0) as a positive electrode active material.
［従来の技術］
近年、ポータプル機器の電源として軽量で高エネルギー
密度の非水電池が注目されている。従来、これらの電池
は電池電圧が高いため、正極の集電体やリードを介して
電気的に接続している電池の封口板、電池ケースなどの
梅成材料の選択が重要な課題になっている。従来、これ
らの非水電池には耐食性に優れたステンレス鋼が用いら
れている。[Prior Art] In recent years, lightweight, high-energy-density non-aqueous batteries have attracted attention as power sources for portable devices. Conventionally, these batteries have a high battery voltage, so the selection of materials for the battery sealing plate, battery case, etc. that are electrically connected via the positive electrode current collector and lead has become an important issue. There is. Conventionally, these non-aqueous batteries have been made of stainless steel, which has excellent corrosion resistance.
例えば特開平１−３１９２６２号においてクロム含有量
が１６重量％以上でかつモリブデン含有量が０．５重量
％以上のステンレス鋼を用いるもの、あるいはクロム含
有量が１６重量％以上でかつニッケル含有量が５重量％
未満のステンレス鋼を用いるもの、又特開平２−１２６
５５４号においてクロム２４〜４０重量％、モリブデン
０． ５〜３重１％及び残部が鉄からなるフェライト系
ステンレス鋼を用いるものなどがある。しかし、ＡｘＭ
ｙＮｚＯ２（Ａはアルカリ金属の少なくとも１種を表し
、Ｍは遷移金属の少なくとも１種を表し、ＮはＡ１、Ｉ
ｎ、 Ｓｎの群から選ばれた少なくとも１種を表し、ｘ
、 ｙ。For example, in JP-A-1-319262, stainless steel with a chromium content of 16% by weight or more and a molybdenum content of 0.5% by weight or more, or a stainless steel with a chromium content of 16% by weight or more and a nickel content 5% by weight
Those using stainless steel of less than
No. 554 contains 24-40% by weight of chromium and 0.0% by weight of molybdenum. Some use ferritic stainless steel consisting of 5 to 3 weight 1% and the balance iron. However, AxM
yNzO2 (A represents at least one alkali metal, M represents at least one transition metal, N represents A1, I
n, represents at least one species selected from the group Sn, x
, y.
Ｚは各々０．０５≦Ｘ≦１．１０．０．８５≦ｙ≦１．
００．０≦２≦０，１０の数である）を正極活物質とす
る電池においては電池電圧が４Ｖ以上と非常に高いため
、従来の金属製部材では耐食性が十分でなく、このため
これら金属製部材が次第に電解液中に溶解してイオンと
なって負極表面に析出し、内部抵抗の増加を招いて放電
容ｌを低下させる。また、負極側の金属製部材上にこれ
らイオンが析出した場合、析出金属が絶縁層を介して電
池正極部材と接触し、内部短絡を招いて電池電圧が低下
する。さらに、これら金属製部材の溶解が著しい場合、
電池ケースに穴を生じ、液漏れを起こす。Z is 0.05≦X≦1.10.0.85≦y≦1.
00.0≦2≦0,10) as the positive electrode active material, the battery voltage is extremely high at 4V or more, so conventional metal members do not have sufficient corrosion resistance. The manufactured parts gradually dissolve in the electrolytic solution and become ions, which are deposited on the surface of the negative electrode, causing an increase in internal resistance and lowering the discharge capacity. Furthermore, when these ions are deposited on the metal member on the negative electrode side, the deposited metal comes into contact with the battery positive electrode member via the insulating layer, causing an internal short circuit and lowering the battery voltage. Furthermore, if these metal parts are significantly melted,
A hole forms in the battery case, causing fluid leakage.
本発明はこのような問題を解決するもので、４■以上の
電池電圧を有する非水系電池において高い耐食性を有す
る電池正極部材を提供することを目的とする。The present invention is intended to solve these problems, and aims to provide a battery positive electrode member that has high corrosion resistance in non-aqueous batteries having a battery voltage of 4 or more.
［課題を解決するための手段］
これらの課題を解決するために、本発明は電池電圧が４
■以上の非水電池に用いる電池部材であって、該電池正
極部材としてクロム２３〜３０重量％、モリブデン０．
５〜４．５重量％、ニッケル１．５〜３．５重量％、残
部の主成分が鉄からなるステンレス鋼を用いることを特
徴とする電池正極部材電池正極部材を提供せんとするも
のである。[Means for Solving the Problems] In order to solve these problems, the present invention provides a battery voltage of 4.
(2) A battery member used in the above nonaqueous battery, which contains 23 to 30% by weight of chromium and 0.5% by weight of molybdenum as the battery positive electrode member.
It is an object of the present invention to provide a battery positive electrode member characterized by using stainless steel whose main components are 5 to 4.5% by weight of nickel, 1.5 to 3.5% by weight of nickel, and the remainder iron. .
本発明に用いる正極活物質はＡｘＭｙＮｚＯ２（人はア
ルカリ金属の少なくとも１種を表し、Ｍは遷移金属の少
なくとも１種を表し、ＮはＡＩ、Ｉｎ。The positive electrode active material used in the present invention is AxMyNzO2 (H represents at least one alkali metal, M represents at least one transition metal, N represents AI, In.
Ｓｎの群から選ばれた少なくとも１種を表し、Ｘ。X represents at least one species selected from the group of Sn;
ｙ、ｚは各々０．０５≦Ｘ≦１．１０．０．８５≦ｙ≦
１．００゜０≦２≦０．１０の数である）で表され、具
体例としてはＬｉＣｏ０．、、ＬｉＮｉ０．、ＬｉＭｎ
０．。y and z are each 0.05≦X≦1.10.0.85≦y≦
1.00゜0≦2≦0.10), and a specific example is LiCo0. ,,LiNi0. , LiMn
0. .
ＬｉＮ１ｕｘ＋Ｃｏ、０２ 、 Ｌ ｌ １．ａ＋Ｃ
Ｏｏ、ｑ）４Ｓｎ １１ 、 ＋ｌ ：ｊ ０２などで
ある。LiN1ux+Co, 02, L l 1. a+C
Oo, q)4Sn 11 , +l:j 02, etc.
かかる一連の正極活物質は例えば特開昭５５−１３６１
３１号、特開昭６２−９０８６３号、特開昭６３−２９
９０５６等で開示されているものであり、４Ｖ以上の高
い電圧を有し、極めて高いエネルギー密度を有する新し
い正極活物質として有望視されている。ががる高い起電
力を有する電池系において正極部材の選択は極めて重要
である。Such a series of positive electrode active materials is disclosed in, for example, Japanese Patent Application Laid-Open No. 1361-1983.
No. 31, JP-A-62-90863, JP-A-63-29
9056, etc., and is considered promising as a new positive electrode active material that has a high voltage of 4 V or more and extremely high energy density. The selection of a positive electrode member is extremely important in a battery system that has a high electromotive force.
クロムは含有量が多いほど耐食性に優れた酸化被膜を形
成する。４Ｖ以上の電池電圧を有する非水系電池におい
て十分な耐食性を有するためには、クロムの含有量は２
３３重丸以上必要であり、好ましくは２５重量％以上で
あり、特に好ましくは２８ｉｌｆ量％以上である。しか
しながらクロムの含有量が３００重丸を越えると安定な
耐食相を得ることができなくなり急激に耐食性が悪化す
る。モリブデンは０． ５ｆｆｉｆｆｉ％以上、好まし
くは３．５重量％以上添加すると酸化被膜をより安定に
する効果がある。しかしモリブデンの含有量が４．５重
量％を越えると安定な耐食相を得ることできなくなる。The higher the chromium content, the more corrosion resistant an oxide film is formed. In order to have sufficient corrosion resistance in a non-aqueous battery with a battery voltage of 4V or higher, the chromium content must be 2.
It requires at least 33 weight percent, preferably at least 25 weight percent, particularly preferably at least 28 ILF weight percent. However, if the chromium content exceeds 300 layers, a stable corrosion-resistant phase cannot be obtained, and the corrosion resistance deteriorates rapidly. Molybdenum is 0. Adding 5ffiffi% or more, preferably 3.5% by weight or more has the effect of making the oxide film more stable. However, if the molybdenum content exceeds 4.5% by weight, a stable corrosion-resistant phase cannot be obtained.
つぎにニッケルであるが従来非水電池の正極部材に用い
るステンレス鋼に耐食性を与えるためにはニッケルの含
有量をできるかぎり少なくすることが必要であると考え
られていた。しかし我々は鋭意検討した結果、非水電解
液中においてはむしろニッケルを１．５〜３．５重量％
、好ましくは２．０〜２．５重量％添加することにより
ニッケルを添加しないときよりも安定な酸化被膜が得ら
れることを見出だした。またニッケルを添加することに
より加工も容易になるという利点がある。このことから
４Ｖ以上の電池電圧を有する非水系電池においては、ク
ロム２３〜３０ｍｆｆ１％、モリブデン０．５〜４．５
重量％、ニッケル１゜５〜３．５重量％、残部が鉄から
なるステンレス鋼を用いることで高い耐食性を有する電
池正極部材を提供することができるようになった。Next, regarding nickel, it has been thought that it is necessary to reduce the nickel content as much as possible in order to impart corrosion resistance to stainless steel used for positive electrode members of non-aqueous batteries. However, as a result of intensive study, we found that 1.5 to 3.5% by weight of nickel should be added to the non-aqueous electrolyte.
It has been found that by adding nickel, preferably 2.0 to 2.5% by weight, a more stable oxide film can be obtained than when no nickel is added. Addition of nickel also has the advantage of facilitating processing. Therefore, in a non-aqueous battery with a battery voltage of 4V or more, chromium 23-30mff1%, molybdenum 0.5-4.5%
By using stainless steel consisting of 1.5 to 3.5% by weight of nickel and the balance iron, it has become possible to provide a battery positive electrode member having high corrosion resistance.
本発明で用いられる負極活物質は特に限定されるもので
はないが、リチウム等の軽金属又はその合金、ポリアセ
チレン等の導電性高分子、Ｌｉ８Ｗ○１等の層間化合物
、炭素質材料等があげられる。特に炭素質材料はサイク
ル性などに優れ好ましい負極活物質としてあげられる。The negative electrode active material used in the present invention is not particularly limited, but includes light metals such as lithium or alloys thereof, conductive polymers such as polyacetylene, interlayer compounds such as Li8W○1, carbonaceous materials, and the like. In particular, carbonaceous materials are preferred as negative electrode active materials because of their excellent cycleability.
電解液としてはプロヒレンカーボネイト、エチレンカー
ボネイト、γ−ブチロラクトン、テトラヒドロフラン、
１．２−ジメトキシエタンなどから選ばれる１稀又は２
種以上の非水有機溶媒に過塩素酸リチウム、四フッ化硼
酸リチウム、六フッ化砒酸リチウム、六フッ化燐酸リチ
ウム、トリフルオロメタンスルホン酸リチウム、塩化リ
チウム等の電解質を０．５〜２．０モル／リットル溶解
させたものなどであり、好ましくはプロヒレンカーボネ
イト、エチレンカーボネイト、γ−ブチロラクトンから
選ばれる１種又は２種以上の非水有機溶媒に四フッ化硼
酸リチウム、六フッ化砒酸リチウム、六フッ化燐酸リチ
ウム等の電解質を０．５〜２．０モル／リットル溶解さ
せたものなどである。As the electrolyte, propylene carbonate, ethylene carbonate, γ-butyrolactone, tetrahydrofuran,
1 or 2 selected from 1.2-dimethoxyethane, etc.
Add an electrolyte such as lithium perchlorate, lithium tetrafluoroborate, lithium hexafluoroarsenate, lithium hexafluorophosphate, lithium trifluoromethanesulfonate, or lithium chloride to a nonaqueous organic solvent of 0.5 to 2.0%. Lithium tetrafluoroborate, lithium hexafluoroborate, These include those in which an electrolyte such as lithium hexafluorophosphate is dissolved at a concentration of 0.5 to 2.0 mol/liter.
［実施例］
実施例１
電池正極部材にクロムを２９重量％、モリブデンを４重
量％、ニッケルを２重量％含み残部が鉄からなるステン
レス鋼（ＵＮＳ ｎｕｍｂｅｒ ５４４８００ ）を用
いてコイン型電池を組み立てた。正極は、活物質として
ＬｉＣｏ０．を１００重量部、これに導電助剤としてグ
ラファイトとアセチレンブラックカーボンを各５重量部
、結着剤としてポリテトラフルオロエチレンを２重量部
混合してペレット状に成形した。負極は活物質としてカ
ーボンを１００重量部、これに結着剤として弗素ゴムを
５重世部混合して成形した。電解液はγ−ブチロラクト
ンに１．０モル／リットルのＬｉＢＦ４の濃度で溶解し
た溶液を用い、セパレーターにはポリプロピレンの不織
布を用いた。この電池を充電終始電圧４．２Ｖ、放電終
始電圧２．７Ｖで５００ｆ−ｉ’タル繰り返した後、電
池を開封し、電池正極部材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。[Example] Example 1 A coin-type battery was assembled using stainless steel (UNS number 544800) containing 29% by weight of chromium, 4% by weight of molybdenum, 2% by weight of nickel, and the balance being iron as a battery positive electrode member. . The positive electrode contains LiCo0. 100 parts by weight of 100 parts by weight, 5 parts by weight each of graphite and acetylene black carbon as conductive aids, and 2 parts by weight of polytetrafluoroethylene as a binder were mixed and formed into pellets. The negative electrode was formed by mixing 100 parts by weight of carbon as an active material and 5 parts by weight of fluororubber as a binder. The electrolytic solution used was a solution of LiBF4 dissolved in γ-butyrolactone at a concentration of 1.0 mol/liter, and a polypropylene nonwoven fabric was used as the separator. After this battery was subjected to 500 f-i' cycles at a charging end voltage of 4.2 V and a discharging end voltage of 2.7 V, the battery was opened and the corrosion state of the battery positive electrode member was observed using a microscope. As a result, no corrosion was observed.
実施例２
電池正極部材にクロムを２６重量％、モリブデンを３重
量％、ニッケルを２重量％含み残部が鉄からなるステン
レス鋼（ＵＮＳ ｎｕｍｂｅｒ ５４４６６０ ）を用
いる以外は実施例１と同様にして電池を組み立て、充放
電を５００サイクル繰り返した後、電池を開封し、電池
正極部材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。Example 2 A battery was produced in the same manner as in Example 1, except that stainless steel (UNS number 544660) containing 26% by weight of chromium, 3% by weight of molybdenum, 2% by weight of nickel and the balance iron was used for the battery positive electrode member. After 500 cycles of assembly, charging and discharging, the battery was opened and the state of corrosion of the battery positive electrode member was observed using a microscope. As a result, no corrosion was observed.
比較例１
電池正極部材にクロムを２５重量％含み残部が鉄からな
るステンレス鋼（ＳＵＨ４４６）を用いる以外は実施例
と同様にして電池を組み立て、充放電を５００サイクル
繰り返した後、電池を開封し、電池正極部材の腐食状態
を顕微鏡で観察した。Comparative Example 1 A battery was assembled in the same manner as in Example except that stainless steel (SUH446) containing 25% by weight of chromium and the balance was iron was used for the battery positive electrode member, and after 500 cycles of charging and discharging, the battery was opened. The corrosion state of the battery positive electrode member was observed using a microscope.
その結果、金属部材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。As a result, a lot of pitting corrosion was observed on the surface of the metal member. Further, precipitates were observed on the surface of the metal member on the negative electrode side.
比較例２
電池正極部材にクロムを２９重量％、モリブデンを４重
量％含み残部が鉄からなるステンレス鋼（ＵＮＳ ｎｕ
ｍｂｅｒ ５４４７００ ）を用いる以外は実施例と同
様にして電池を組み立て、充放電を５００サイクル繰り
返した後、電池を開封し、電池正極部材の腐食状態を顕
微鏡で観察した。その結果、金属部材表面に多くの孔食
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。Comparative Example 2 A battery positive electrode member made of stainless steel (UNS nu
A battery was assembled in the same manner as in the example except that 544700) was used, and after 500 cycles of charging and discharging, the battery was opened and the corrosion state of the battery positive electrode member was observed using a microscope. As a result, a lot of pitting corrosion was observed on the surface of the metal member. Further, precipitates were observed on the surface of the metal member on the negative electrode side.
比較例３
電池正極部材にクロムを１８重量％、モリブデンを２重
量％、ニッケルを１電型％含み残部が鉄からなるステン
レス鋼（ＳＵＳ４４４）を用いる以外は実施例１と同様
にして電池を組み立て、充放電を５００サイクル繰り返
した後、電池を開封し、電池正極部材の腐食状態を顕微
鏡で観察した。Comparative Example 3 A battery was assembled in the same manner as in Example 1, except that stainless steel (SUS444) containing 18% by weight of chromium, 2% by weight of molybdenum, 1% of nickel and the balance iron was used for the battery positive electrode member. After 500 cycles of charging and discharging, the battery was opened and the corrosion state of the battery positive electrode member was observed using a microscope.
その結果、金属部材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。As a result, a lot of pitting corrosion was observed on the surface of the metal member. Further, precipitates were observed on the surface of the metal member on the negative electrode side.
［発明の効果］
以上詳述した如く、特定の成分組成のステンレス鋼を電
池正極部材に用いることにより優れた特性を有する非水
電池を提供できる。[Effects of the Invention] As detailed above, a non-aqueous battery having excellent characteristics can be provided by using stainless steel with a specific composition for a battery positive electrode member.
Claims (1)
って、該電池正極部材としてクロム２３〜３０重量％、
モリブデン０．５〜４．５重量％、ニッケル１．５〜３
．５重量％、残部の主成分が鉄からなるステンレス鋼を
用いることを特徴とする電池正極部材。A battery member used for a non-aqueous battery with a battery voltage of 4 V or higher, comprising 23 to 30% by weight of chromium as the battery positive electrode member;
Molybdenum 0.5-4.5% by weight, nickel 1.5-3
．． A battery positive electrode member characterized in that stainless steel is used, the main component being 5% by weight and the remainder being iron.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2238973A JP2951706B2 (en) | 1990-09-11 | 1990-09-11 | Battery components |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2238973A JP2951706B2 (en) | 1990-09-11 | 1990-09-11 | Battery components |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH04121962A true JPH04121962A (en) | 1992-04-22 |
| JP2951706B2 JP2951706B2 (en) | 1999-09-20 |
Family
ID=17038049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2238973A Expired - Lifetime JP2951706B2 (en) | 1990-09-11 | 1990-09-11 | Battery components |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2951706B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599654A1 (en) * | 1992-11-26 | 1994-06-01 | Seiko Electronic Components Ltd. | Non-aqueous electrolyte electrochemical cell |
| 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 |
-
1990
- 1990-09-11 JP JP2238973A patent/JP2951706B2/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0599654A1 (en) * | 1992-11-26 | 1994-06-01 | Seiko Electronic Components Ltd. | Non-aqueous electrolyte electrochemical cell |
| US5478670A (en) * | 1992-11-26 | 1995-12-26 | Seiko Electronic Components, Ltd. | Non-aqueous electrolyte electrochemical cell comprising high Ni austenitic stainless steel positive electrode case |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2951706B2 (en) | 1999-09-20 |
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