JP2654675B2 - Positive electrode for non-aqueous electrolyte secondary batteries - Google Patents

Positive electrode for non-aqueous electrolyte secondary batteries

Info

Publication number
JP2654675B2
JP2654675B2 JP63238478A JP23847888A JP2654675B2 JP 2654675 B2 JP2654675 B2 JP 2654675B2 JP 63238478 A JP63238478 A JP 63238478A JP 23847888 A JP23847888 A JP 23847888A JP 2654675 B2 JP2654675 B2 JP 2654675B2
Authority
JP
Japan
Prior art keywords
positive electrode
aqueous electrolyte
electrolyte secondary
battery
present
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
Application number
JP63238478A
Other languages
Japanese (ja)
Other versions
JPH0287463A (en
Inventor
尚之 加藤
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.)
Furukawa Battery Co Ltd
Original Assignee
Furukawa Battery 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 Furukawa Battery Co Ltd filed Critical Furukawa Battery Co Ltd
Priority to JP63238478A priority Critical patent/JP2654675B2/en
Publication of JPH0287463A publication Critical patent/JPH0287463A/en
Application granted granted Critical
Publication of JP2654675B2 publication Critical patent/JP2654675B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0561—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of inorganic materials only
    • H01M10/0563—Liquid materials, e.g. for Li-SOCl2 cells
    • 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
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/48—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides
    • H01M4/483—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides for non-aqueous cells
    • 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

  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (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)

Description

【発明の詳細な説明】 〔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或いは
それらの合金を負極活物質とし、モリブデン−バナジウ
ム−酸素の三成分から成る複合酸化物を正極活物質とし
て使用する非水電解液二次電池に用いる正極に関する。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention uses a light metal such as lithium or sodium or an alloy thereof as a negative electrode active material, and uses a composite oxide comprising three components of molybdenum-vanadium-oxygen as a positive electrode active material. The present invention relates to a positive electrode used for a nonaqueous electrolyte secondary battery used as a substance.

〔従来の技術〕[Conventional technology]

従来の正極活物質としてMoO3、V2O5などを使用した非
水電解液二次電池用正極は公知である。A positive electrode for a non-aqueous electrolyte secondary battery using MoO 3 , V 2 O 5 or the like as a conventional positive electrode active material is known.

〔発明が解決しようとする課題〕[Problems to be solved by the invention]

上記従来の正極を使用した電池は、放電容量の満足し
たものが得られない。A battery using the above-mentioned conventional positive electrode cannot have a satisfactory discharge capacity.

〔課題を解決するための手段〕[Means for solving the problem]

本発明は、従来に比し、放電容量の増大した非水電解
液二次電池用正極を提供するもので、Mo4V6O25を正極活
物質として使用することを特徴とする。The present invention provides a positive electrode for a non-aqueous electrolyte secondary battery having an increased discharge capacity as compared with the related art, and is characterized by using Mo 4 V 6 O 25 as a positive electrode active material.

〔作 用〕(Operation)

本発明のMo4V6O25から成る正極活物質は、V2O5、MoO3
に比し電気抵抗が著しく小さいので、これを非水電解液
二次電池の正極とするときは、放電容量が増大する。こ
の場合、Mo4V6O25粉末を導電材を混入することなしに正
極を作製してもこれにより放電容量の大きい電池が得ら
れる。The cathode active material composed of Mo 4 V 6 O 25 of the present invention includes V 2 O 5 , MoO 3
Since the electric resistance is remarkably low as compared with the above, when this is used as the positive electrode of the non-aqueous electrolyte secondary battery, the discharge capacity increases. In this case, a battery having a large discharge capacity can be obtained even if a positive electrode is produced by mixing Mo 4 V 6 O 25 powder without mixing a conductive material.

〔実施例〕 次に、本発明の実施の１例を説明する。Embodiment Next, an embodiment of the present invention will be described.

五酸化バナジウムV2O5、金属バナジウムＶ及び三酸化
モリブデンMoO3をモル比で2.6:0.8:4（＝13:14:20）の
割合で秤量し、乳鉢で充分混合した混合物を石英管内に
減圧封入し、615℃で２日間反応させ、本発明の正極活
物質Mo4V6O25を得た。該Mo4V6O25の電気抵抗は39Ωであ
った。因みに、V2O5は2273Ω、MoO3は105Ωである。Vanadium pentoxide V 2 O 5 , metal vanadium V and molybdenum trioxide MoO 3 were weighed at a molar ratio of 2.6: 0.8: 4 (= 13: 14: 20), and the mixture sufficiently mixed in a mortar was placed in a quartz tube. The mixture was sealed under reduced pressure and reacted at 615 ° C. for 2 days to obtain a cathode active material Mo 4 V 6 O 25 of the present invention. The electric resistance of the Mo 4 V 6 O 25 was 39Ω. Incidentally, V 2 O 5 is 2273Ω and MoO 3 is 10 5 Ω.

このMo4V6O25粉末をフッ素樹脂ディスパージョンと共
に混練し、この導電材を含有しない混合物をNi製金網に
加圧加熱成形して直径13mm、厚さ0.3mmの円形正極板を
製造した。この本発明の正極板と、直径13mm、厚さ0.75
mmの円形リチウムフォイルから成る負極板と、1M−LiCl
O4を溶解したPC（プロピレンカーボネート）から成る非
水電解液とテフロン製の電池容器とを用いて第１図示の
非水電解液二次電池Ａを合製造して、その放電容量特性
を試験した。This Mo 4 V 6 O 25 powder was kneaded with a fluororesin dispersion, and the mixture containing no conductive material was pressure-heated and formed on a metal mesh made of Ni to produce a circular positive electrode plate having a diameter of 13 mm and a thickness of 0.3 mm. This positive electrode plate of the present invention, diameter 13 mm, thickness 0.75
mm negative lithium plate, 1M-LiCl
A non-aqueous electrolyte secondary battery A shown in FIG. 1 was manufactured using a non-aqueous electrolyte composed of PC (propylene carbonate) in which O 4 was dissolved and a battery container made of Teflon, and the discharge capacity characteristics were tested. did.

該電池Ａは、本発明のMo4V6O25から成る正極板１と前
記の負極板２とをテフロン製の電池容器３内に所定の間
隔で対向配設し、その間隙空間内に前記の電解液４を収
容密封して成る。In the battery A, the positive electrode plate 1 made of Mo 4 V 6 O 25 of the present invention and the negative electrode plate 2 are arranged opposite to each other at a predetermined interval in a battery container 3 made of Teflon. Of the electrolyte 4 is sealed.

図面では５は正極端子、６は負極端子を示す。本発明
の変形例として、Mo4V6O25粉末とフッ素樹脂と共に混練
するに当たり、更にこれにアセチレンブラックなどの導
電材を適量添加混練したものをNi製金網に加熱加圧成形
して直径13mm、厚さ0.3mmの円形正極板を製造し、この
本発明の正極板を用い前記と同様にして電池Ａ′を製造
し、同様に放電特性を試験した。In the drawings, 5 indicates a positive terminal and 6 indicates a negative terminal. As a modified example of the present invention, when kneading with Mo 4 V 6 O 25 powder and a fluororesin, an appropriate amount of a conductive material such as acetylene black was further added and kneaded, and the mixture was heated and press-molded into a metal mesh made of Ni to a diameter of 13 mm. Then, a circular positive electrode plate having a thickness of 0.3 mm was manufactured. Using this positive electrode plate of the present invention, a battery A 'was manufactured in the same manner as described above, and the discharge characteristics were similarly tested.

比較のため、正極活物質としてV2O5粉末を導電材と共
に前記と同様にNi製金網に加圧成形して作製した正極板
を前記と同様に組み込み作製した比較電池Ｂを製造し、
正極活物質としてMoO3粉末を使用し、導電材と共に前記
と同様にNi製金網に加圧成形して作製した正極板を前記
と同様に組み込んだ比較電池Ｃを製造し、これら電池
Ｂ、Ｃにつき同様の放電特性を試験した。放電電流の密
度は0.5mA/cm2、放電終止電圧は1.5Vとした。For comparison, a comparative battery B was prepared by incorporating a positive electrode plate produced by press-molding a V 2 O 5 powder as a positive electrode active material together with a conductive material on a Ni wire mesh in the same manner as described above, and producing the same,
Comparative batteries C were prepared by using MoO 3 powder as a positive electrode active material and press-molding them together with a conductive material onto a Ni wire mesh in the same manner as described above to produce comparative batteries C. Were tested for similar discharge characteristics. The discharge current density was 0.5 mA / cm 2 , and the discharge end voltage was 1.5 V.

その試験結果を第２図に示す。この図から明らかなよ
うに、本発明のMo4V6O25を含む正極板（導電材を含まな
い）を使用した電池Ａは、従来のV2O5、MoO3を夫々正極
板として使用した従来電池Ｂ及びＣに比し、著しく大き
い放電容量が得られ、電圧の平坦性も優れ、高エネルギ
ー密度が得られる。FIG. 2 shows the test results. As is clear from this figure, the battery A using the positive electrode plate containing Mo 4 V 6 O 25 of the present invention (containing no conductive material) uses the conventional V 2 O 5 and MoO 3 as the positive electrode plate, respectively. Compared with the conventional batteries B and C, a significantly larger discharge capacity is obtained, the flatness of the voltage is excellent, and a high energy density is obtained.

又、導電材を含む本発明の正極板を使用した電池Ａ′
は、導電材を含まない場合に比し放電特性の向上が見ら
れた。Also, a battery A ′ using the positive electrode plate of the present invention containing a conductive material
Showed an improvement in discharge characteristics as compared with the case where no conductive material was contained.

〔発明の効果〕〔The invention's effect〕

このように本発明によるときは、非水電解液二次電池
の極板の正極活物質としてMo4V6O25を使用するときは、
従来に比し、著しく大きい放電容量が得られる効果を有
する。Thus, according to the present invention, when using Mo 4 V 6 O 25 as the positive electrode active material of the electrode plate of the non-aqueous electrolyte secondary battery,
This has the effect that a significantly larger discharge capacity can be obtained than in the past.

【図面の簡単な説明】[Brief description of the drawings]

第１図は、本発明の正極活物質を含む正極を使用した非
水電解液二次電池の裁断側面図、第２図は、本発明正極
を用いた電池と従来の正極を用いた電池の放電特性の比
較図を示す。 １……本発明の正極板、２……陰極板 ３……電池容器、４……非水電解液 A,A′……本発明の正極を用いた電池、放電特性曲線FIG. 1 is a cut-away side view of a non-aqueous electrolyte secondary battery using a positive electrode containing a positive electrode active material of the present invention, and FIG. 2 is a view of a battery using a positive electrode of the present invention and a battery using a conventional positive electrode. 3 shows a comparison diagram of discharge characteristics. DESCRIPTION OF SYMBOLS 1 ... Positive electrode plate of this invention 2 ... Cathode plate 3 ... Battery container 4 ... Non-aqueous electrolyte A, A '... Battery using the positive electrode of this invention, discharge characteristic curve

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】Mo4V6O25を正極活物質として使用すること
を特徴とする非水電解液二次電池用正極。1. A positive electrode for a non-aqueous electrolyte secondary battery, wherein Mo 4 V 6 O 25 is used as a positive electrode active material. 【請求項２】Mo4V6O25粉末とバインダーのみを混練した
もの、又はこれらと導電材とを混練したものを常法によ
り成形して成る非水電解液二次電池の正極。2. A positive electrode of a non-aqueous electrolyte secondary battery obtained by kneading only Mo 4 V 6 O 25 powder and a binder or kneading these with a conductive material by a conventional method.
JP63238478A 1988-09-22 1988-09-22 Positive electrode for non-aqueous electrolyte secondary batteries Expired - Lifetime JP2654675B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP63238478A JP2654675B2 (en) 1988-09-22 1988-09-22 Positive electrode for non-aqueous electrolyte secondary batteries

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP63238478A JP2654675B2 (en) 1988-09-22 1988-09-22 Positive electrode for non-aqueous electrolyte secondary batteries

Publications (2)

Publication Number Publication Date
JPH0287463A JPH0287463A (en) 1990-03-28
JP2654675B2 true JP2654675B2 (en) 1997-09-17

Family

ID=17030836

Family Applications (1)

Application Number Title Priority Date Filing Date
JP63238478A Expired - Lifetime JP2654675B2 (en) 1988-09-22 1988-09-22 Positive electrode for non-aqueous electrolyte secondary batteries

Country Status (1)

Country Link
JP (1) JP2654675B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5355611A (en) * 1993-08-16 1994-10-18 Fishing Designs, Inc. Balancer for fishing rods
KR100449068B1 (en) * 2002-10-09 2004-09-18 한국전자통신연구원 Method for manufacturing cathode electrode for lithium secondary battery by using vanadium oxide

Also Published As

Publication number Publication date
JPH0287463A (en) 1990-03-28

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