WO1997019479A1 - Positive plate active material for alkaline storage battery and positive electrode - Google Patents
Positive plate active material for alkaline storage battery and positive electrode Download PDFInfo
- Publication number
- WO1997019479A1 WO1997019479A1 PCT/JP1996/003159 JP9603159W WO9719479A1 WO 1997019479 A1 WO1997019479 A1 WO 1997019479A1 JP 9603159 W JP9603159 W JP 9603159W WO 9719479 A1 WO9719479 A1 WO 9719479A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- active material
- solid solution
- positive electrode
- nickel
- hydroxylated
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G53/00—Compounds of nickel
- C01G53/04—Oxides; Hydroxides
-
- 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
- H01M4/52—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/45—Aggregated particles or particles with an intergrown morphology
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2300/00—Electrolytes
- H01M2300/0002—Aqueous electrolytes
- H01M2300/0014—Alkaline electrolytes
-
- 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
Definitions
- the present invention relates to a positive electrode active material for an alkaline storage battery and a positive electrode for an alkaline storage battery using the active material.
- a high-capacity dense electrode has been developed as the nickel positive electrode of this type of alkaline storage battery. That is, the sintering nickel base plate was filled with hydroxylated nickel by a diagonal process or an electrochemical process. Sintered electrode, or non-sintered electrode in which high-porosity foamed nickel or nickel fiber is filled with hydroxy-nickel It is an electrode.
- the Mn content of the solid solution is at least 1 mole% of the total amount of metal ions in the solid solution.
- the Mn content of the solid solution is preferably not less than 3 mono% of the total amount of metal ions in the solid solution, and the amount of gold in the solid solution is preferably not less than 3%. More preferably, it is at least 10 mol% of the total amount of the genus ion.
- the amount of Mn in the solid solution is not more than 10 mol% of the hydroxylated nickel active material and the total metal ion in the solid solution. And power is good.
- the positive electrode active material for alkaline storage batteries is a process for producing particles of hydroxylated nickel active material, and the above-mentioned hydroxylation process.
- Aqueous solution containing divalent nickel ion and manganese ion and caustic alkali in the presence of granule active material particles To form a solid solution of Mn in the form of a nickel hydroxide solution with a solid solution of Mn on the surface of the above-mentioned hydroxylation nickel active material. It can be manufactured by the process to be made.
- the present invention relates to a group consisting of Ca, Sr, Ba, Cu, Ag, Cd, Y and Yb, in addition to the positive electrode active material described above. It provides a positive electrode for an alkaline battery that contains at least one selected elemental compound.
- the content ratio of the compound is preferably 0.1 to 5 parts by weight with respect to 100 parts by weight of the active material. It is better.
- Fig. 1 is a diagram showing a model of the positive electrode active material particles according to the present invention.
- FIG. 2 is a diagram showing another model of the positive electrode active material particles according to the present invention. Best form to carry out the invention
- the present invention has the effect of dissolving Mn in nickel hydroxide to shift the oxidation potential of the hydroxylated nickel in a negative direction. It is based on the finding that
- the inventors of the present invention do not dissolve Mn in all hydroxylated nickel active materials used for the electrode, but instead dissolve the hydroxylated nickel.
- At least the surface layer of the particles in which the crystals of the nugget active material are aggregated contains a hydroxylated nickel in which Mn is dissolved as a solid solution. It has been found that charging efficiency at high temperatures can be improved with a small amount of Mn.
- the positive electrode active material for a storage battery comprises a process for producing nickel hydroxide active material particles, and the above-mentioned hydroxylation process.
- Aqueous solution containing divalent nickel ion and manganese ion and caustic solvent in the coexistence of particles To form a solid solution of Mn in the form of a nickel hydroxide solution with a solid solution of Mn on the surface of the above-mentioned hydroxylation nickel active material.
- the strength of the manufacturing process depends on the manufacturing process.
- Wl 6 Preferable to obtain water containing hydroxylated diion.
- Fig. 1 and Fig. 2 show the particle size of aggregated crystals of hydroxylated nitric acid. And at least the surface area
- the shape and relative size of the crystals, which make up the particles and the particles, and the number of crystals and the size of the crystals and the particles are indispensable. Standing at the edge
- the active material represented by the model shown in Fig. 1 is used as a granulated powder.
- Crystal 2 of the active material is defined as a large number of 1s.
- the active material particles 4 shown by the model in FIG. 2 are composed of a large number of crystals 5 of the hydroxylated active material. Then, on the surface of each crystal, a crystal 6 of a hydroxylated nickel oxide in which Mn is dissolved is growing. According to the production method of the present invention, first, secondary or tertiary particles in which crystals of a hydroxylated nickel active material are aggregated are obtained. In the coexistence of the particles, the aqueous solution containing divalent nickel and mangan ion and the caustic solvent And a solid solution of Mn to react with To produce crystals of the metal. Therefore, on the surface of the secondary or tertiary particles described above, hydroxylated nickel in which Mn is dissolved is generated.
- the active material obtained by the manufacturing method of the present invention is considered to be a combination of the model of FIG. 1 and the model of FIG. Yes.
- 2 and 5 are described as the crystals of the smallest unit, but the parts represented by 2 and 5 are the secondary particles. It is also conceivable.
- Mn in the hydroxylated nickel in which Mn is dissolved as a solid solution is a method for lowering the charge potential of the active material. Work to shift to As a result, the oxidation-reduction equilibrium potential of the active material is reduced, the charging voltage is reduced, and the charging reaction is caused by the interface with the electrolyte.
- the active material particles are charged from the surface layer of the active material particles, that is, the surface layer containing hydroxy nickel in which Mn is dissolved. Incorporation is improved, and active material utilization is improved.
- the proportion of Mn dissolved in the hydroxylated gel is determined from the viewpoint that the effect of shifting the charge potential toward the lower direction is obtained. At least 1 mol% of all metal ions in the solution Necessary, preferably at least 3 mono%, and more preferably at least 10 mono%.
- the proportion of Mn in the solid solution is not more than 10 mol% of the hydroxylated nickel active material and the total metal ion in the solid solution. It is preferable that
- the most representative method for producing the positive electrode active material according to the present invention is the reaction crystallization method described in the above and described in the working examples. It is a target.
- a two-stage synthesis method that is, a synthesis method using two reaction tanks, and a multi-stage synthesis method in which the number of reaction tanks is increased.
- a synthesis method can also be adopted.
- the Ni salt solution was changed to a mixed solution containing Mn salt during the synthesis process. Method, or after obtaining a hydrated nickel active material as a mother phase as a dry powder, disperse the powder in a liquid, and then disperse the powder in the liquid. It is also possible to adopt a method of adding a mixed salt solution and an alkaline solution.
- Nickel-sintered substrates can also be prepared by chemical impregnation or electrolysis. Is charged with nickel hydroxide, then impregnated with a mixed aqueous solution containing Ni and Mn salts, and treated with an alkaline aqueous solution. A nickel oxynitride with a solid solution of Mn by the impregnation method or the electrolysis method of electrolysis in a mixed aqueous solution containing Ni salt and Mn salt.
- the positive electrode according to the present invention can also be obtained by the method of filling the gap.
- the thermal alkaline aqueous solution contains 5 to 50 wt% of at least one kind of hydroxylated liquor among Li, Na, and K. It means a water solution of 0 ° C to 120 ° C.
- the active material containing the solid solution of Mn-dissolved hydroxy nickel and the above-mentioned Ca, Sr, Ba, Cu, Ag, and Cd , Y, and Yb forces, use of a positive electrode containing at least one elemental compound selected from the group consisting of:
- a positive electrode containing at least one elemental compound selected from the group consisting of: In addition to the effect of lowering the electric potential, the oxygen generation potential also increases. The following effects can be obtained. This synergistic effect further improves the charging efficiency at high temperatures.
- Preferred examples of the compounds described above are Ca (0H) 2 , C a ⁇ , C a FC a S, C a S 0 4, C a S i 2 0 5, C a C 20 4 C a WO 4, S r C ⁇ 3, S r ( ⁇ H) 2, B a ⁇ , C u 2 0, A g 2 ⁇ , C d 0, YF 3 ,
- the Mg, Zn, Cd, and C a forces, a small number selected from the group, to control the swelling of the hydroxylated gelled active material At least one element is dissolved in the whole active material, or Co is dissolved in the whole active material in order to improve the utilization rate.
- Ni is dissolved in the whole active material in order to improve the utilization rate.
- nickel hydroxide which is a matrix, be dissolved in these elements. .
- the aqueous ammonia solution was continuously supplied at the same flow rate from each of the fixed-quantity pumps, and the mixture was stirred. Then, the suspension containing the active material particles and other reaction products continuously overflowing from the second reaction tank f. Thus, the active material particles were separated.
- the active substance particles are poured into a 60 ° C hot aluminum solution containing 25 wt% of NaOH, and stirred for 24 hours. After washing, it was dried at 90 ° C. Thus, a positive electrode active material was obtained.
- This positive electrode active material is composed of particles of crystals of the hydroxylated nickel active material, and at least the surface of the particles has a surface layer of the particles. And a solid solution of hydroxy nickel in which Mn was dissolved. The content of Mn in the solid solution is 20 mol% of the total amount of metallic ions contained in the solid solution (the rest is Ni, 80%). Mol%).
- This positive electrode active material is defined as d. i
- a positive electrode using an active material containing a solid solution of hydroxylated nickel oxide in which Mn is dissolved as a solid solution has improved charge efficiency at high temperatures. Power.
- the Mn content in the solid solution If the amount is 3 mol% or more of the total amount of metal ions contained in the solid solution, the effect becomes large. In particular, it is effective when the Mn content in the solid solution is 10 mol% or more of the total amount of metal ions contained in the solid solution. Larger.
- Table 2 and Table 3 show that the positive electrode active material d containing a solid solution of hydroxylated nickel in which Mn was dissolved as a part of the active material is the active material.
- An extremely small amount of Mn as compared with the positive electrode active material of Comparative Example 2 in which the whole consists of a solid solution of hydroxy nickel in which Mn was dissolved in solid form. It is clear that the same level of effect has been obtained.
- a nickel electrode prepared by adding a compound of Ca to an active material containing a solid solution of hydroxylated nickel in which Mn is dissolved as a solid solution is added. It can be seen that the charging efficiency at high temperatures is further improved.
- the addition D ratio of the Ca compound is 100 parts by weight of the active material containing a solid solution of hydroxylated nickel in which Mn is dissolved. However, it was confirmed that it was the most suitable for 0.15 mass parts.
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Electrode And Active Subsutance (AREA)
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP96935481A EP0809309B1 (en) | 1995-11-22 | 1996-10-28 | Electrode with positive plate active material for alkaline storage battery |
DE69626495T DE69626495T2 (de) | 1995-11-22 | 1996-10-28 | Elektrode mit aktivem material für positive platte eines akkus |
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7/304463 | 1995-11-22 | ||
JP30446395 | 1995-11-22 | ||
JP8/170086 | 1996-06-28 | ||
JP17008696 | 1996-06-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO1997019479A1 true WO1997019479A1 (en) | 1997-05-29 |
Family
ID=26493202
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP1996/003159 WO1997019479A1 (en) | 1995-11-22 | 1996-10-28 | Positive plate active material for alkaline storage battery and positive electrode |
Country Status (4)
Country | Link |
---|---|
US (1) | US6066416A (ja) |
EP (1) | EP0809309B1 (ja) |
DE (1) | DE69626495T2 (ja) |
WO (1) | WO1997019479A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0834945A1 (en) * | 1996-09-30 | 1998-04-08 | Matsushita Electric Industrial Co., Ltd. | Nickel positive electrode and alkaline storage battery using the same |
US7569306B2 (en) | 2004-04-23 | 2009-08-04 | Panasonic Corporation | Alkaline battery and manufacturing method of positive electrode material therefor |
US7718315B2 (en) | 2003-11-06 | 2010-05-18 | Panasonic Corporation | Alkaline battery and positive electrode material for alkaline battery comprising nickel oxyhydroxide and manganese dioxide |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1708297A3 (en) * | 1996-12-27 | 2007-03-07 | Canon Kabushiki Kaisha | Powdery material, electrode member, method for manufacturing same and secondary cell |
US6566008B2 (en) * | 1997-01-30 | 2003-05-20 | Sanyo Electric Co., Ltd. | Sealed alkaline storage battery |
EP0975036A4 (en) * | 1997-01-30 | 2005-11-23 | Sanyo Electric Co | BATTERY OF ACCUMULATORS TO ALCALIS BLINDEE |
US6074785A (en) * | 1997-04-14 | 2000-06-13 | Matsushita Electric Industrial Co., Ltd. | Nickel/metal hydride storage battery |
US6306787B1 (en) * | 1998-06-10 | 2001-10-23 | Sakai Chemical Industry Co., Ltd. | Nickel hydroxide particles and production and use thereof |
JP4252641B2 (ja) * | 1998-06-15 | 2009-04-08 | パナソニック株式会社 | アルカリ蓄電池用正極および正極活物質 |
DE19841396A1 (de) * | 1998-09-10 | 2000-03-16 | Varta Geraetebatterie Gmbh | Aktives Nickelhydroxid-Material für alkalische Akkumulatoren und Verfahren zu seiner Herstellung |
JP3744716B2 (ja) * | 1999-03-30 | 2006-02-15 | 三洋電機株式会社 | 密閉型アルカリ蓄電池 |
JP2006012670A (ja) * | 2004-06-28 | 2006-01-12 | Matsushita Electric Ind Co Ltd | アルカリ電池 |
CN109935799A (zh) * | 2017-12-19 | 2019-06-25 | 宁波高新区锦众信息科技有限公司 | 一种碱性二次电池用多层级α-氢氧化镍复合材料的制备方法 |
CN114613950B (zh) * | 2022-03-08 | 2024-04-19 | 三峡大学 | 一种水系锌镍电池高容量复合正极材料的制备方法 |
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-
1996
- 1996-10-28 DE DE69626495T patent/DE69626495T2/de not_active Expired - Lifetime
- 1996-10-28 WO PCT/JP1996/003159 patent/WO1997019479A1/ja active IP Right Grant
- 1996-10-28 EP EP96935481A patent/EP0809309B1/en not_active Expired - Lifetime
-
1998
- 1998-07-22 US US09/120,544 patent/US6066416A/en not_active Expired - Lifetime
Patent Citations (1)
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JPH08222215A (ja) * | 1995-02-14 | 1996-08-30 | Sanyo Electric Co Ltd | アルカリ蓄電池用非焼結式ニッケル極 |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0834945A1 (en) * | 1996-09-30 | 1998-04-08 | Matsushita Electric Industrial Co., Ltd. | Nickel positive electrode and alkaline storage battery using the same |
US6027834A (en) * | 1996-09-30 | 2000-02-22 | Matsushita Electric Industrial Co., Ltd. | Nickel positive electrode and alkaline storage battery using the same |
US7718315B2 (en) | 2003-11-06 | 2010-05-18 | Panasonic Corporation | Alkaline battery and positive electrode material for alkaline battery comprising nickel oxyhydroxide and manganese dioxide |
US7569306B2 (en) | 2004-04-23 | 2009-08-04 | Panasonic Corporation | Alkaline battery and manufacturing method of positive electrode material therefor |
Also Published As
Publication number | Publication date |
---|---|
EP0809309B1 (en) | 2003-03-05 |
US6066416A (en) | 2000-05-23 |
EP0809309A1 (en) | 1997-11-26 |
EP0809309A4 (en) | 1999-02-24 |
DE69626495D1 (de) | 2003-04-10 |
DE69626495T2 (de) | 2003-12-24 |
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