JPH0715817B2 - Non-aqueous electrolyte battery - Google Patents
Non-aqueous electrolyte batteryInfo
- Publication number
- JPH0715817B2 JPH0715817B2 JP61117005A JP11700586A JPH0715817B2 JP H0715817 B2 JPH0715817 B2 JP H0715817B2 JP 61117005 A JP61117005 A JP 61117005A JP 11700586 A JP11700586 A JP 11700586A JP H0715817 B2 JPH0715817 B2 JP H0715817B2
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- battery
- aqueous electrolyte
- tin oxide
- thin film
- 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
- 239000011255 nonaqueous electrolyte Substances 0.000 title claims description 15
- 239000000470 constituent Substances 0.000 claims description 15
- 239000010409 thin film Substances 0.000 claims description 15
- 230000007797 corrosion Effects 0.000 claims description 13
- 238000005260 corrosion Methods 0.000 claims description 13
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 9
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims description 7
- 229910001887 tin oxide Inorganic materials 0.000 claims description 7
- 239000008151 electrolyte solution Substances 0.000 claims description 5
- 239000011149 active material Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 239000007774 positive electrode material Substances 0.000 claims description 4
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 8
- 230000000052 comparative effect Effects 0.000 description 6
- 238000003860 storage Methods 0.000 description 6
- 238000004090 dissolution Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052759 nickel Inorganic materials 0.000 description 4
- 239000003792 electrolyte Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910001925 ruthenium oxide Inorganic materials 0.000 description 3
- WOCIAKWEIIZHES-UHFFFAOYSA-N ruthenium(iv) oxide Chemical compound O=[Ru]=O WOCIAKWEIIZHES-UHFFFAOYSA-N 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 229910001220 stainless steel Inorganic materials 0.000 description 3
- 239000010935 stainless steel Substances 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 2
- 229910000963 austenitic stainless steel Inorganic materials 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052744 lithium Inorganic materials 0.000 description 2
- NUJOXMJBOLGQSY-UHFFFAOYSA-N manganese dioxide Chemical compound O=[Mn]=O NUJOXMJBOLGQSY-UHFFFAOYSA-N 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 229910052786 argon Inorganic materials 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 239000006258 conductive agent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000007750 plasma spraying Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
-
- 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
- H01M4/661—Metal or alloys, e.g. alloy coatings
-
- 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
-
- 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
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Cell Electrode Carriers And Collectors (AREA)
- Secondary Cells (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、ナトリウムなどの軽金属を活物質と
する負極と、非水電解質液と、金属の酸化物、硫化物、
ハロゲン化物などを活物質とする正極とを備えた一次或
いは二次電池に関するものである。Detailed Description of the Invention a. INDUSTRIAL APPLICABILITY The present invention is a negative electrode using a light metal such as lithium or sodium as an active material, a non-aqueous electrolyte solution, a metal oxide, a sulfide,
The present invention relates to a primary or secondary battery provided with a positive electrode using a halide or the like as an active material.
ロ．従来の技術 この種電池において正極活物質と直接或いは間接的に電
気接続された正極構成部材、例えば正極罐や正極集伝体
の材料としてはニツケル含有量が約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、電池の保存中に構成金属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、又極端な場合には穴
あき現象を生じることがある。この原因はステンレス鋼
に含まれるニツケル量に依存すると考えられニツケル量
が多いほど顕著であつた。B. 2. Description of the Related Art In this type of battery, a so-called austenite-based material having a nickel content of about 3 to 20% by weight is used as a material for a positive electrode constituent member electrically connected to a positive electrode active material directly or indirectly, for example, a positive electrode can or a positive electrode current collector. Stainless steel is generally used, but during storage of the battery, the constituent metals may dissolve in the electrolyte and precipitate on the negative electrode, increasing the internal resistance and, in extreme cases, causing a puncture phenomenon. is there. This cause is considered to depend on the amount of nickel contained in the stainless steel, and was more remarkable as the amount of nickel was larger.
そこで、例えば特公昭55−15067号公報に開示されてい
るように正極構成部材としてニツ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エライト系ステン
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金属の溶解現象が認められた。Therefore, as disclosed in, for example, Japanese Patent Publication No. 55-15067, it has been proposed to use ferrite-based stainless steel containing almost no nickel as a positive electrode constituent member and less susceptible to cracking under stress. Even when stored at high temperature for a long time, the dissolution phenomenon of the constituent metals 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
の発展と相俟つて微少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つてきた。ここで述べる微
少電流とは高々数μＡであるが、このような微少電流放
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重要である。Since this type of battery has a smaller self-discharge than conventional silver batteries and alkaline batteries, it can withstand long-term use.Therefore, in recent years, due to the development of electronics on the equipment side, a small current There has been a growing demand for stability of discharge characteristics over a long period of time. The minute current described here is at most several μA, but in order to obtain stable discharge characteristics for a long period under such minute current discharge, high reliability of the battery itself is important.
又、近年においては非水電解液電池の二次系も開発が活
発化しており、充電時に高電圧となると成句構成部材が
腐蝕をうけ、溶解した金属イオンが負極表面に析出して
不働態皮膜を形成し電池寿命が短かくなる。従つて二次
電池系においては高温保存時に加え充電時の観点からも
正極構成部材としては耐蝕性に優れたものが求められて
いる。Further, in recent years, the development of secondary systems for non-aqueous electrolyte batteries has become active, and when high voltage is applied during charging, the phrase components are corroded, and dissolved metal ions are deposited on the negative electrode surface to form a passive film. Form a short battery life. Therefore, in the secondary battery system, a positive electrode component having excellent corrosion resistance is required from the viewpoint of charging at the same time as storage at high temperature.
そこで、例えば、特開昭52−111625号には、正極集電体
や正極ケースの電解液と接する表面を耐食性がありかつ
金属的導電性を示す酸化ルテニウムで被覆することが記
載されている。然し乍ら、この酸化ルテニウムでは、非
水電解液電池内において、電子伝導度が低い、耐蝕性が
十分でない、更には基板との密着性を向上させる必要が
あるなど、電池特性を向上させる上でまだまだ改良の余
地がある。Therefore, for example, JP-A-52-111625 describes that the surface of the positive electrode current collector or the positive electrode case which is in contact with the electrolytic solution is coated with ruthenium oxide which has corrosion resistance and metallic conductivity. However, with this ruthenium oxide, in the non-aqueous electrolyte battery, the electron conductivity is low, the corrosion resistance is not sufficient, and further it is necessary to improve the adhesion to the substrate. There is room for improvement.
ハ．発明が解決しようとする問題点 非水電解液を備えた一次或いは二次電池において、高温
保存時或いは充電時における正極構成部材の溶解を因と
する電池特性の劣化を抑制しようとするものである。C. DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention In a primary or secondary battery provided with a non-aqueous electrolyte, it is intended to suppress deterioration of battery characteristics due to dissolution of a positive electrode constituent member during high temperature storage or charging. .
ニ．問題点を解決するための手段 正極構成部材の少くとも電解液と接する表面に、非水電
解液に対して耐蝕性を有するインジウム−スズ酸化物或
いは酸化スズからなる導電性薄膜を形設したことを特徴
とする。D. Means for Solving the Problems A conductive thin film made of indium-tin oxide or tin oxide having corrosion resistance to a non-aqueous electrolyte is formed on at least the surface of the positive electrode constituent member that is in contact with the electrolyte. Is characterized by.
ホ．作用 非水電解液に対して耐蝕性を有するインジウム−スズ酸
化物或いは酸化スズからなる導電性薄膜の耐蝕性は高
温，高電位下においてより顕著となる。従つて正極構成
部材の少くとも電解液と接する表面に前記薄膜を形設す
ると、正極構成部材の溶解が抑制される。E. The corrosion resistance of the conductive thin film made of indium-tin oxide or tin oxide, which has corrosion resistance to the non-aqueous electrolyte, becomes more remarkable at high temperature and high potential. Therefore, when the thin film is formed on at least the surface of the positive electrode constituent member that is in contact with the electrolytic solution, dissolution of the positive electrode constituent member is suppressed.
又、前記薄膜は導電性を有するため正極構成部材と正極
活物質との電気接続を良好に維持することができ電池特
性を劣化させるといつた不都合はない。In addition, since the thin film has conductivity, good electrical connection between the positive electrode constituent member and the positive electrode active material can be maintained, and battery characteristics will be deteriorated without any inconvenience.
ヘ．実施例 以下本発明の実施例を図面に基づき説明する。F. Embodiments Embodiments of the present invention will be described below with reference to the drawings.
実施例1. 第１図は電池の半断面図を示し、（１）はリチウム圧延
板を所定形状に打抜いた負極であつて、オーステナイト
系ステンレス鋼（SUS304）よりなる負極罐（２）の内面
に固着せる負極集電体（３）に圧着されている。Example 1. FIG. 1 shows a half cross-sectional view of a battery. (1) shows a negative electrode obtained by punching a rolled lithium plate into a predetermined shape, which is composed of an austenitic stainless steel (SUS304) negative electrode canister (2). It is pressure-bonded to the negative electrode current collector (3) that is fixed to the inner surface.
（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ツ素樹脂粉末を
85:10:5の重量比で混合し、この混合物を成型して得た
正極であつて正極罐（５）の内面に固着せる正極集電体
（６）に圧接されている。（７）は非水電解液を含浸せ
るセパレータ。（８）は絶縁パツキングである。(4) Manganese dioxide as an active material, carbon powder as a conductive agent and fluorine resin powder as a binder
A positive electrode obtained by mixing at a weight ratio of 85: 10: 5 and molding the mixture is pressed against a positive electrode current collector (6) fixed to the inner surface of the positive electrode canister (5). (7) is a separator impregnated with a non-aqueous electrolyte. (8) is insulation packing.
ここで正極罐（５）及び正極集電体（６）はいづれもオ
ーステナイト系ステンレス鋼（SUS304）の板体を加工し
たものであり、正極集電体（６）を正極罐（５）の内底
面に電気溶接で固着した後、正極罐及び正極集電体の少
くとも電解液と接する表面に、インジウム−スズ酸化物
をスパツタリング法により付着させてインジウム−スズ
酸化物の薄膜（９）が形設されている。Here, the positive electrode canister (5) and the positive electrode current collector (6) are both plates of austenitic stainless steel (SUS304), and the positive electrode current collector (6) is included in the positive electrode canister (5). After being fixed to the bottom surface by electric welding, indium-tin oxide is deposited by the sputtering method on the surface of the positive electrode canister and the positive electrode current collector, which is in contact with at least the electrolytic solution, to form a thin film (9) of indium-tin oxide. It is set up.
スパツタリング法の条件は出力DC200W、圧力３×10-3to
r、アルゴン流量10ml/min基板温度100℃、時間10分であ
り、薄膜の厚さは0.5μｍであつた。この本発明電池を
（A1）とする。The conditions for the sputtering method are output DC200W, pressure 3 × 10 -3 to
r, argon flow rate 10 ml / min, substrate temperature 100 ° C., time 10 minutes, thin film thickness 0.5 μm. This battery of the present invention is referred to as (A1).
尚、薄膜形成法としてはスパツタリング法以外に真空蒸
着法、プラズマ溶射法或いはCVD法が使用できる。As the thin film forming method, a vacuum vapor deposition method, a plasma spraying method or a CVD method can be used other than the sputtering method.
実施例２ インジウム−スズ酸化物に代えて酸化スズを用い、且薄
膜の厚みを0.8μｍにすることを除いて他は実施例１と
同様の本発明電池（A2）を作成した。Example 2 A battery (A2) of the present invention was prepared in the same manner as in Example 1 except that tin oxide was used instead of indium-tin oxide, and the thickness of the thin film was 0.8 μm.
比較例 導電性薄膜を有しない正極構成部材を用い、他は実施例
１と同様の比較電池（Ｂ）を作成した。Comparative Example A comparative battery (B) was prepared in the same manner as in Example 1 except that the positive electrode constituent member having no conductive thin film was used.
下表はこれら電池（A1）（A2）（Ｂ）を60℃で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
したものである。The table below compares the internal impedance of these batteries (A1) (A2) (B) measured at a frequency of 1 KHz after storage at 60 ° C for 3 months.
上表より本発明電池（A1）（A2）は比較電池（Ｂ）に比
して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。尚、測定後各電池の正極罐を
走査型電子顕微鏡で観察したところ、比較電池（Ｂ）の
正極罐では粒界において腐蝕が見られたが、本発明電池
（A1）（A2）の正極罐では腐蝕は認められなかつた。 From the above table, it can be seen that the batteries (A1) and (A2) of the present invention have lower internal impedance after storage at high temperature and less variation than the comparative battery (B). When the positive electrode cans of the respective batteries were observed with a scanning electron microscope after the measurement, corrosion was observed at the grain boundaries in the positive electrode cans of the comparative battery (B), but the positive electrode cans of the batteries (A1) (A2) of the present invention were observed. No corrosion was found in.
次に、作成直後のこれら電池（A1）（A2）（Ｂ）の充放
電試験を行なつた。Next, a charging / discharging test of these batteries (A1) (A2) (B) immediately after preparation was performed.
充放電条件は充電;3.6mA×4Hr、終止電圧4.0V、放電;3.
0×mA×4Hrとし放電終止電圧とサイクル数との関係を第
２図に示す。尚、放電終止電圧が2.0V以下に達したもの
は電池寿命とした。Charge / discharge conditions are charge; 3.6mA × 4Hr, final voltage 4.0V, discharge; 3.
Fig. 2 shows the relationship between the discharge end voltage and the number of cycles, assuming 0 × mA × 4 Hr. In addition, when the final discharge voltage reached 2.0 V or less, the battery life was determined.
第２図より本発明電池（A1）（A2）は比較電池（Ｂ）に
比してサイクル特性が向上しているのがわかる。尚、試
験終了後の電池を分解し、内部を観察したところ比較電
池（Ｂ）ではセパレータに褐色の付着物が見られ、分析
の結果ステンレス成分が認められた。一方、本発明電池
（A1）（A2）では付着物は認められなかった。It can be seen from FIG. 2 that the batteries (A1) and (A2) of the present invention have improved cycle characteristics as compared with the comparative battery (B). After the test, the battery was disassembled and the inside was observed. As a result, a brown deposit was found on the separator in the comparative battery (B), and a stainless component was found as a result of the analysis. On the other hand, no deposit was observed in the batteries (A1) and (A2) of the present invention.
ト．発明の効果 上述した如く、正極構成部材の少くとも電解液と接する
表面に、非水電解液に対して耐蝕性を有するインジウム
−スズ酸化物或いは酸化スズからなる導電性薄膜を形設
することにより、正極構成部材の溶解を抑制することが
できるので、高温保存特性に加えて、二次電池系につい
てはサイクル特性に優れた非水電解液電池を得ることが
できると共に、薄膜が導電性を有するため正極構成部材
と正極活物質との電気接続状態を良好に維持できる。G. EFFECTS OF THE INVENTION As described above, by forming a conductive thin film made of indium-tin oxide or tin oxide, which has corrosion resistance to a non-aqueous electrolyte, on at least the surface of the positive electrode constituent member in contact with the electrolyte. Since the dissolution of the positive electrode constituent member can be suppressed, in addition to high temperature storage characteristics, a non-aqueous electrolyte battery having excellent cycle characteristics can be obtained for a secondary battery system, and the thin film has conductivity. Therefore, the electrical connection between the positive electrode constituent member and the positive electrode active material can be favorably maintained.
尚、インジウム−スズ酸化物或いは酸化スズからなる導
電性薄膜は、ルテニウム酸化物に比べて、電子伝導度が
高い、耐蝕性が高い、更には基板との密着性が高い等の
利点を有するので、この種非水電解液電池野性能を向上
させる上で、最適な材料である。The conductive thin film made of indium-tin oxide or tin oxide has advantages over ruthenium oxide, such as high electron conductivity, high corrosion resistance, and high adhesion to the substrate. , It is the optimum material for improving the performance of this kind of non-aqueous electrolyte battery.
また実施例で示した非水電解液に対して耐蝕性を有する
導電性薄膜としてのインジウム−スズ酸化物或いは酸化
スズのみで正極構成部材を形成した場合には強度の点で
不充分であると共に、強度向上のために厚くすると導電
性が低下し且材料費が高騰し経済性の点で問題があるた
め好ましくない。Further, when the positive electrode constituent member is formed of only indium-tin oxide or tin oxide as a conductive thin film having corrosion resistance to the non-aqueous electrolyte shown in the examples, the strength is insufficient and However, if the thickness is increased to improve the strength, the conductivity is lowered, the material cost is increased, and there is a problem in economical efficiency, which is not preferable.
第１図は本発明電池の縦断面図、第２図は電池のサイク
ル特性比較図を夫々示す。 （１）……負極、（２）……負極罐、（３）……負極集
電体、（４）……正極、（５）……正極罐、（６）……
正極集電体、（７）……セパレータ、（８）……絶縁パ
ツキング、（９）……非水電解液に対して耐蝕性を有す
る導電性薄膜、（A1）（A2）……本発明電池、（Ｂ）…
…比較電池。FIG. 1 is a longitudinal sectional view of the battery of the present invention, and FIG. 2 is a comparison diagram of cycle characteristics of the battery. (1) ... Negative electrode, (2) ... Negative electrode canister, (3) ... Negative electrode collector, (4) ... Positive electrode, (5) ... Positive electrode canister, (6).
Positive electrode current collector, (7) ... Separator, (8) ... Insulating packing, (9) ... Conductive thin film having corrosion resistance to non-aqueous electrolyte, (A1) (A2) ... The present invention Battery, (B) ...
… Comparison battery.
Claims (1)
と、正極とを備え、正極活物質と直接或いは間接的に電
気接続された正極構成部材の少くとも電解液と接する表
面に、非水電解液に対して、耐蝕性を有するインジウム
−スズ酸化物或いは酸化スズからなる導電性薄膜を形設
したことを特徴とする非水電解液電池。1. A surface of a positive electrode constituent member, which comprises a negative electrode using a light metal as an active material, a nonaqueous electrolytic solution, and a positive electrode, and is directly or indirectly electrically connected to the positive electrode active material, at least in contact with the electrolytic solution. A non-aqueous electrolyte battery, characterized in that a conductive thin film made of indium-tin oxide or tin oxide having corrosion resistance to the non-aqueous electrolyte is formed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61117005A JPH0715817B2 (en) | 1986-05-21 | 1986-05-21 | Non-aqueous electrolyte battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61117005A JPH0715817B2 (en) | 1986-05-21 | 1986-05-21 | Non-aqueous electrolyte battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62274556A JPS62274556A (en) | 1987-11-28 |
| JPH0715817B2 true JPH0715817B2 (en) | 1995-02-22 |
Family
ID=14701104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61117005A Expired - Fee Related JPH0715817B2 (en) | 1986-05-21 | 1986-05-21 | Non-aqueous electrolyte battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0715817B2 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0770328B2 (en) * | 1986-11-08 | 1995-07-31 | 旭化成工業株式会社 | Secondary battery |
| JP4224995B2 (en) * | 2002-07-18 | 2009-02-18 | 日本電気株式会社 | Secondary battery and current collector for secondary battery |
| JP4811681B2 (en) | 2008-04-03 | 2011-11-09 | トヨタ自動車株式会社 | Electrode current collector manufacturing method and manufacturing apparatus, and battery equipped with the current collector |
| JP6011634B2 (en) * | 2012-11-12 | 2016-10-19 | 株式会社豊田自動織機 | Nonaqueous electrolyte secondary battery |
-
1986
- 1986-05-21 JP JP61117005A patent/JPH0715817B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPS62274556A (en) | 1987-11-28 |
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