JPS62190657A - Manufacture of positive electrode for nonaqueous battery - Google Patents
Manufacture of positive electrode for nonaqueous batteryInfo
- Publication number
- JPS62190657A JPS62190657A JP61032393A JP3239386A JPS62190657A JP S62190657 A JPS62190657 A JP S62190657A JP 61032393 A JP61032393 A JP 61032393A JP 3239386 A JP3239386 A JP 3239386A JP S62190657 A JPS62190657 A JP S62190657A
- Authority
- JP
- Japan
- Prior art keywords
- positive electrode
- lithium nitrate
- mixture
- reaction
- copper oxide
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 5
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 claims abstract description 39
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 239000000203 mixture Substances 0.000 claims abstract description 11
- 239000011149 active material Substances 0.000 claims abstract description 10
- 229960004643 cupric oxide Drugs 0.000 claims description 13
- 238000005979 thermal decomposition reaction Methods 0.000 claims description 2
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 abstract description 6
- 238000010438 heat treatment Methods 0.000 abstract description 6
- 229910052744 lithium Inorganic materials 0.000 abstract description 6
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 150000002500 ions Chemical class 0.000 abstract description 2
- 239000005751 Copper oxide Substances 0.000 abstract 4
- 229910000431 copper oxide Inorganic materials 0.000 abstract 4
- 229910003349 Li2CuO2 Inorganic materials 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- 230000000694 effects Effects 0.000 description 2
- 150000002642 lithium compounds Chemical class 0.000 description 2
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- XTHFKEDIFFGKHM-UHFFFAOYSA-N Dimethoxyethane Chemical compound COCCOC XTHFKEDIFFGKHM-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 239000003792 electrolyte Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000012046 mixed solvent Substances 0.000 description 1
- 239000011255 nonaqueous electrolyte Substances 0.000 description 1
- 239000004745 nonwoven fabric Substances 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000007774 positive electrode material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- RUOJZAUFBMNUDX-UHFFFAOYSA-N propylene carbonate Chemical compound CC1COC(=O)O1 RUOJZAUFBMNUDX-UHFFFAOYSA-N 0.000 description 1
- 229910001923 silver oxide Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- H01M4/00—Electrodes
- H01M4/02—Electrodes composed of, or comprising, active material
- H01M4/36—Selection of substances as active materials, active masses, active liquids
- H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
- H01M4/581—Chalcogenides or intercalation compounds thereof
-
- 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)
- Battery Electrode And Active Subsutance (AREA)
Abstract
Description
【発明の詳細な説明】
（イ）産業上の利用分野
本発明はリチウム又はリチウム化合物を活物質とする負
極と、非水電解液と、酸化第二銅を活物質とする正極と
を備えた非水゛４池に係り、符に正極の製造法に関する
ものである。[Detailed description of the invention] (a) Industrial application field The present invention comprises a negative electrode using lithium or a lithium compound as an active material, a non-aqueous electrolyte, and a positive electrode using cupric oxide as an active material. This paper relates to four non-aqueous ponds, and specifically relates to a method of manufacturing a positive electrode.
＋０１ 従来の技術
リチウム又はリチウム化合物を活物質とずろ負極を備え
た非水４池は高エネルギー密度を有し、且自已放電が少
ないという利点を有する。+01 Prior Art A non-aqueous battery comprising lithium or a lithium compound as an active material and a negative electrode has the advantages of high energy density and low self-discharge.
そして正！Ｍ活物質として例えば特公昭５６−４０４７
１号公報に開示されているように、酸化第二銅を用いれ
ば電池電圧は約１．５Ｖ程度となり既存のアルカリ乾電
池、水銀層池或いは銀礒池等と互換使用しうる利点があ
る。And positive! As an M active material, for example, Japanese Patent Publication No. 56-4047
As disclosed in Publication No. 1, if cupric oxide is used, the battery voltage will be approximately 1.5 V, which has the advantage of being compatible with existing alkaline dry batteries, mercury layer batteries, silver oxide batteries, etc.
ｅ９ 発明が解決しようとする問題点酸化第二銅を正
鴇活物質とする非水「ｄ池は時計の駆動用゛１源として
利用されつつあるが、さらに種々の分野・＼の適用拡大
が考えられており、高率放電軸性の向上が要求されてい
る。e9 Problems to be solved by the invention Non-aqueous ``d'' ponds using cupric oxide as the active material are being used as a power source for clocks, but their application will be expanded to various fields. Therefore, there is a need to improve the axial properties of high-rate discharge.
に）問題点を解決するための手段
本発明は酸化第二銅と硝酸リチウムとを混合し、この混
合物を硝酸リチウムの熱分解温度以上の温度で熱処理し
たものを活物質として用いる正極の製造法を提案ｒるも
のである。熱処理温度の上限は酸化第二銅が分解しはじ
める温度以下にする必要がある。B) Means for Solving the Problems The present invention provides a method for producing a positive electrode using, as an active material, a mixture of cupric oxide and lithium nitrate and heat-treating the mixture at a temperature higher than the thermal decomposition temperature of lithium nitrate. This is what we propose. The upper limit of the heat treatment temperature must be lower than the temperature at which cupric oxide begins to decompose.
尚、混合物に対する硝酸リチウムの添加ｉｆは１〜１０
重盪飛跡好ましい。Incidentally, the addition if of lithium nitrate to the mixture is 1 to 10
Severe impact tracks are preferred.
又、熱処理の雰囲気については真空、不活性、還元性、
酸化性を問わない。In addition, the atmosphere for heat treatment should be vacuum, inert, reducing,
Regardless of oxidizing properties.
（ホ）作用
本発明法の正極によると、熱処理によって酸化第二銅中
にリチウムがドープして１ｉ２（：ｕＱｚで表わされる
化合物が生成し、酸化第二銅を主体とする正極中に１ｉ
２ＣｕＱ２が混入した状態となっている。この１ｉ２Ｃ
ｕＱ２の存在のため、放電の際、先づ１ｉｚＣｕ○２か
らＬ１イオンカ鳩止脱して近傍のＣｕＯと反応すると共
にこの反応と併行して主反応、即ち負極中のＬｉと正極
活物質であるＣｕＯとの反応が進行するため正極中にＬ
ｉｚ（ｕＱｚが存在しない場合に比してＬｉとＣｕＯと
の反応が円滑に行なわれろことになり、その結果として
高率放′磁特性が向上する。(e) Effect According to the positive electrode of the present invention, lithium is doped into cupric oxide through heat treatment to form a compound represented by 1i2(:uQz), and 1i is doped into the positive electrode mainly composed of cupric oxide.
It is in a state where 2CuQ2 is mixed. This 1i2C
Due to the presence of uQ2, during discharge, L1 ions are first released from 1izCu○2 and react with nearby CuO, and in parallel with this reaction, a main reaction occurs between Li in the negative electrode and CuO, which is the positive electrode active material. Because the reaction with
Compared to the case where iz(uQz does not exist), the reaction between Li and CuO occurs more smoothly, and as a result, the high rate magnetization characteristics are improved.
（へ）実施例 以ド本発明の実施例について詳述する。(f) Example Examples of the present invention will now be described in detail.
市販特級の酸化第二銅９５５重歳に硝酸リチウム５重歳
％を混合し、この混合物を空気中において温度８００℃
で熱処理を施す。この熱処理を施した酸化第二銅（Ｌｉ
２Ｃｕ０２を含有）９０重飛火に導′ル剤としての黒鉛
を５重社％、結着剤としてのフッ素樹脂粉末を５重社％
加えて混合した後、この混合物を約２トン／ｉの圧力で
加圧成型して径１５．０ｍ、厚み１．１９の成型体を得
、この成型体を２００〜３００℃の温度で熱処理して正
極とする。Commercially available special grade cupric oxide 955% is mixed with 5% lithium nitrate, and this mixture is heated in air at a temperature of 800°C.
Heat treatment is performed. This heat-treated cupric oxide (Li)
(Contains 2Cu02) 90 heavy sparks, 5% graphite as a guiding agent and 5% fluororesin powder as a binder.
After adding and mixing, this mixture was pressure molded at a pressure of about 2 tons/i to obtain a molded body with a diameter of 15.0 m and a thickness of 1.19 m, and this molded body was heat-treated at a temperature of 200 to 300°C. and use it as the positive electrode.
尚、電池の作成に際しては負極として厚み約０．６馴の
リチウム圧廻板を径１５．０＋ｍに打抜いたものを用い
、又電解液はプロピレンカーボネートト１．２ジメト牛
シエタンとの混合溶媒に過塩ＡＭリチウムを１モル／ｌ
溶解させたものでありポリプロピレン不織布よりなるセ
パレータに含浸して用い直径２０．０ｍ、厚み２．５
ｒｔｓの本発明に係る電池（Ａ）を作成した。When making the battery, a lithium pressure plate with a thickness of about 0.6 cm was punched out to a diameter of 15.0 m as the negative electrode, and the electrolyte was a mixed solvent of propylene carbonate and 1.2 dimethoxyethane. 1 mol/l of oversalted AM lithium
It was dissolved and used by impregnating a separator made of polypropylene nonwoven fabric with a diameter of 20.0 m and a thickness of 2.5 m.
An rts battery (A) according to the present invention was prepared.
ついで比較のためにＬｉ２Ｃｕｏ２を含有しない市販特
級の酸化第二銅を活物質として用いた従来法による正極
を組込んだ従来電池（Ｂ）を作成したつ第１図はこれら
ｔｉｔ池の温度２５℃、負荷１にΩにおける放電時性を
示す。又、第２図は温度２５℃、負極１にΩの放４条件
ドにおいて、酸化第二銅と硝酸リチウムとの混合物に対
する硝酸リチウムの添加量と題池放電谷量との関係を示
す、第１図より本発明に係る１池（Ａ）は従来電池（Ｂ
）に比して高率放゛越符性が向上しているのがわかる。Next, for comparison, we created a conventional battery (B) incorporating a positive electrode made by a conventional method using commercially available special grade cupric oxide that does not contain Li2Cuo2 as an active material. Figure 1 shows the temperature of these tit ponds at 25°C. , shows the discharge characteristics at Ω for load 1. In addition, Figure 2 shows the relationship between the amount of lithium nitrate added to the mixture of cupric oxide and lithium nitrate and the discharge valley amount under four conditions of discharge of Ω to the negative electrode 1 at a temperature of 25°C. From Figure 1, one battery according to the present invention (A) is different from the conventional battery (B).
), it can be seen that the high-rate excursion characteristic is improved compared to the previous one.
又、第２図より硝酸リチウムの添加量としては１〜１０
重鼠％の範囲が好ましい。Also, from Figure 2, the amount of lithium nitrate added is 1 to 10.
A range of % weight is preferred.
（ト）発明の効果
上述した如く、本発明法により得た正極を用いれは、非
水鴫池の高率放−特性を向上することができるものであ
り、この櫨幅池の用ぼ拡大に資するところ極めて大であ
る。(g) Effects of the invention As mentioned above, the use of the positive electrode obtained by the method of the present invention can improve the high rate emission characteristics of non-water ponds, and is useful for expanding the use of this Hajiba pond. The contribution is extremely large.
第１図は本発明に保る４池（Ａ）と従来電池（Ｂ）との
放４符性比奴図であり、第２図は硝酸リチウムの添加−
と颯池放嘔谷鼠との関係を示す図である。FIG. 1 is a graph showing the ratio of four cells according to the present invention (A) and the conventional cell (B), and FIG.
FIG.
Claims (2)
物を前記硝酸リチウムの熱分解温度以上の温度で熱処理
したものを活物質として用いることを特徴とする非水電
池用正極の製造法。(1) A method for producing a positive electrode for a non-aqueous battery, characterized in that cupric oxide and lithium nitrate are mixed, and this mixture is heat-treated at a temperature higher than the thermal decomposition temperature of the lithium nitrate, and then used as an active material. .
酸リチウムの添加量が１〜１０重量％である 特許請求の範囲第（１）項記載の非水電池用正極の製造
法。(2) The method for producing a positive electrode for a nonaqueous battery according to claim (1), wherein the amount of lithium nitrate added to the mixture of cupric oxide and lithium nitrate is 1 to 10% by weight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61032393A JPH0750604B2 (en) | 1986-02-17 | 1986-02-17 | Manufacturing method of positive electrode for non-aqueous battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61032393A JPH0750604B2 (en) | 1986-02-17 | 1986-02-17 | Manufacturing method of positive electrode for non-aqueous battery |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS62190657A true JPS62190657A (en) | 1987-08-20 |
| JPH0750604B2 JPH0750604B2 (en) | 1995-05-31 |
Family
ID=12357706
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61032393A Expired - Fee Related JPH0750604B2 (en) | 1986-02-17 | 1986-02-17 | Manufacturing method of positive electrode for non-aqueous battery |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0750604B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5670277A (en) * | 1996-06-13 | 1997-09-23 | Valence Technology, Inc. | Lithium copper oxide cathode for lithium cells and batteries |
| US5744265A (en) * | 1996-06-13 | 1998-04-28 | Valence Technology, Inc. | Lithium cell having mixed lithium--metal--chalcogenide cathode |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749165A (en) * | 1980-09-09 | 1982-03-20 | Sanyo Electric Co Ltd | Organic electrolytic cell |
-
1986
- 1986-02-17 JP JP61032393A patent/JPH0750604B2/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5749165A (en) * | 1980-09-09 | 1982-03-20 | Sanyo Electric Co Ltd | Organic electrolytic cell |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5670277A (en) * | 1996-06-13 | 1997-09-23 | Valence Technology, Inc. | Lithium copper oxide cathode for lithium cells and batteries |
| US5744265A (en) * | 1996-06-13 | 1998-04-28 | Valence Technology, Inc. | Lithium cell having mixed lithium--metal--chalcogenide cathode |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0750604B2 (en) | 1995-05-31 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |