CN104319381A - Preparation method for composite cathode materials for alkaline battery - Google Patents
Preparation method for composite cathode materials for alkaline battery Download PDFInfo
- Publication number
- CN104319381A CN104319381A CN201410673615.0A CN201410673615A CN104319381A CN 104319381 A CN104319381 A CN 104319381A CN 201410673615 A CN201410673615 A CN 201410673615A CN 104319381 A CN104319381 A CN 104319381A
- Authority
- CN
- China
- Prior art keywords
- zinc
- titanium
- ratio
- niobium
- mixed liquor
- 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.)
- Pending
Links
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
- H01M4/362—Composites
- H01M4/364—Composites as mixtures
-
- 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
- H01M4/525—Selection of substances as active materials, active masses, active liquids of inorganic oxides or hydroxides of nickel, cobalt or iron of mixed oxides or hydroxides containing iron, cobalt or nickel for inserting or intercalating light metals, e.g. LiNiO2, LiCoO2 or LiCoOxFy
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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
Abstract
The invention discloses a preparation method for composite cathode materials for an alkaline battery. The preparation method includes the following steps that (1) titanium, zinc and niobium doped nickelous hydroxide active substances are prepared; (2) the composite cathode materials are prepared. According to the prepared composite cathode materials for the alkaline battery, spherical nickelous hydroxide serves as the main materials to keep the high energy density of the composite cathode materials, doping modification is carried out on the nickelous hydroxide active substances through the titanium, zinc and niobium to improve the circulation stability, and particularly, the added niobium improves the high-temperature stability of the materials. In addition, a multi-walled carbon nanotube and aluminite powder are added to improve electricity conductivity, and the circulation stability is further improved. When the composite cathode materials are applied to the alkaline secondary battery, the battery is made to have high specific capacity and longer service life.
Description
Technical field
The present invention relates to a kind of preparation method of alkaline battery composite positive pole.
Background technology
Along with the develop rapidly of electronics and information industry, electronic product is tending towards that function is complicated, compact in size, weight lightness, this has higher requirement to providing the battery of electric power, battery need have good high-rate charge-discharge capability, cycle performance, also should have that cost is low, the feature of good stability simultaneously.Simultaneously along with hybrid-electric car, electric motor car demand are increasing, the demand of electrokinetic cell is also got more and more.The alkaline battery that MH/Ni battery is a kind of take nickel hydroxide material as positive pole, metal hydride is negative pole, alkaline aqueous solution is electrolyte.It has the significant advantages such as specific discharge capacity is high, quickly-chargeable, memory-less effect, low stain, life-span length, is described as " green battery " at battery industry.Compared with other series batteries, MH/Ni battery has wider application, and it not only as the electrical source of power of hybrid-electric car, electric motor car, can also provide power for various electronic product.
Ball-shape nickel hydroxide is that various alkaline secondary cell is (as Ni/Cd, Ni/MH, Ni/H
2deng) positive electrode active materials, vital effect is played to the capacity of battery and life-span.Especially as electrical vehicular power storage battery, the specific capacity of nickel electrode and cyclical stability also need further raising.
Summary of the invention
For overcoming above-mentioned deficiency, the invention provides a kind of preparation method of alkaline battery composite positive pole, the Spherical nickel hydroxide material using the method to prepare, has higher specific capacity and cyclical stability.
To achieve these goals, the preparation method of a kind of alkaline battery composite positive pole provided by the invention, comprises the steps:
(1) titanium, zinc, niobium doped with hydrogen nickel oxide active material is prepared
Be the ratio of 1: 2-3 in the mass ratio of n-amyl alcohol and surfactant softex kw, the two is mixed to get surfactant solution, then in surfactant solution, heptane is added, stir to obtain mixed liquor one, and wherein the ratio of the volume of heptane volume and surfactant solution is 3-4: 1;
The mixing salt solution of preparation containing Titanium Nitrate, zinc nitrate and nitric acid niobium, wherein the molar concentration of titanium, zinc and niobium is controlled as 0.5-1mol/L, 0.3-0.6mol/L and 0.1-0.2mol/L, joined in above-mentioned mixed liquor one by above-mentioned mixing salt solution and obtain mixed liquor two, wherein the volume ratio of mixing salt solution and mixed liquor one is 1:3-5;
Compound concentration is the sodium hydrate aqueous solution of 1-2mol/L;
The ratio of the weight ratio 1:10-15 of ball-shape nickel hydroxide powder and deionized water is taken ball-shape nickel hydroxide powder and inserts in the deionized water of corresponding amount, heats and stir, making the suspension-turbid liquid of nickel hydroxide;
The sodium hydrate aqueous solution prepared and mixed liquor two to be added dropwise to respectively continuously in the reactor of the suspension-turbid liquid of nickel hydroxide and to stir, the velocity ratio of sodium hydrate aqueous solution and mixed liquor two controls as (20-30): 100, control Ni element and titanium, zinc, the mol ratio of niobium three kinds of element total amounts is 100: (5-10), the pH value controlled in reactor is 11-12, reaction temperature controls as 65-75 DEG C, reaction time is 5-7h, the product of gained is proceeded in solid-liquid separator and is separated, gained solid matter washed with de-ionized water is less than 8 to pH, dry, obtain titanium, zinc, niobium doped with hydrogen nickel oxide active material,
(2) composite positive pole is prepared
Prepare burden by following weight portion:
Caliber is the multi-walled carbon nano-tubes 2-4 of 20-30nm
Cobalt hydroxide 5-8
Nanometer aluminium powder 1-1.5
Polytetrafluoroethylene 1-2.5
Plant rotten plain 1.2-1.5
Titanium, zinc, niobium doped with hydrogen nickel oxide active material 100;
Above-mentioned batching and suitable quantity of water are stirred and obtains nickel hydroxide composite positive pole of the present invention.
Alkaline battery composite positive pole prepared by the present invention, take ball-shape nickel hydroxide as major ingredient, to keep the high-energy-density of material, have employed titanium, zinc and niobium carry out doping vario-property its cyclical stability of raising to active material nickel hydroxide, especially the interpolation of niobium, improve the high-temperature stability of material, with the addition of multi-walled carbon nano-tubes and aluminium powder in addition to improve conductivity, thus improve its cyclical stability further, therefore this material is when for alkaline secondary cell, makes battery have high specific capacity and longer useful life.
Embodiment
embodiment one
Be the ratio of 1: 2 in the mass ratio of n-amyl alcohol and surfactant softex kw, the two is mixed to get surfactant solution, then in surfactant solution, heptane is added, stir to obtain mixed liquor one, and wherein the ratio of the volume of heptane volume and surfactant solution is 3: 1.
The mixing salt solution of preparation containing Titanium Nitrate, zinc nitrate and nitric acid niobium, wherein the molar concentration of titanium, zinc and niobium is controlled as 0.5mol/L, 0.3mol/L and 0.1mol/L, joined in above-mentioned mixed liquor one by above-mentioned mixing salt solution and obtain mixed liquor two, wherein the volume ratio of mixing salt solution and mixed liquor one is 1:3.
Compound concentration is the sodium hydrate aqueous solution of 1mol/L; The ratio of the weight ratio 1:10 of ball-shape nickel hydroxide powder and deionized water is taken ball-shape nickel hydroxide powder and inserts in the deionized water of corresponding amount, heats and stir, making the suspension-turbid liquid of nickel hydroxide.
The sodium hydrate aqueous solution prepared and mixed liquor two to be added dropwise to respectively continuously in the reactor of the suspension-turbid liquid of nickel hydroxide and to stir, the velocity ratio of sodium hydrate aqueous solution and mixed liquor two controls to be 20: 100, control Ni element and titanium, zinc, the mol ratio of niobium three kinds of element total amounts is 100: 5, the pH value controlled in reactor is 11, it is 65 DEG C that reaction temperature controls, reaction time is 7h, the product of gained is proceeded in solid-liquid separator and is separated, gained solid matter washed with de-ionized water is less than 8 to pH, dry, obtain titanium, zinc, niobium doped with hydrogen nickel oxide active material.
Prepare burden by following weight portion:
Caliber is the multi-walled carbon nano-tubes 2 of 20-30nm
Cobalt hydroxide 5
Nanometer aluminium powder 1
Polytetrafluoroethylene 1
Plant rotten element 1.2
Titanium, zinc, niobium doped with hydrogen nickel oxide active material 100;
Above-mentioned batching and suitable quantity of water are stirred and obtains nickel hydroxide composite positive pole of the present invention.
embodiment two
Be the ratio of 1: 3 in the mass ratio of n-amyl alcohol and surfactant softex kw, the two is mixed to get surfactant solution, then in surfactant solution, heptane is added, stir to obtain mixed liquor one, and wherein the ratio of the volume of heptane volume and surfactant solution is 4: 1.
The mixing salt solution of preparation containing Titanium Nitrate, zinc nitrate and nitric acid niobium, wherein the molar concentration of titanium, zinc and niobium is controlled as 1mol/L, 0.6mol/L and 0.2mol/L, joined in above-mentioned mixed liquor one by above-mentioned mixing salt solution and obtain mixed liquor two, wherein the volume ratio of mixing salt solution and mixed liquor one is 1:5.
Compound concentration is the sodium hydrate aqueous solution of 2mol/L; The ratio of the weight ratio 1:15 of ball-shape nickel hydroxide powder and deionized water is taken ball-shape nickel hydroxide powder and inserts in the deionized water of corresponding amount, heats and stir, making the suspension-turbid liquid of nickel hydroxide.
The sodium hydrate aqueous solution prepared and mixed liquor two to be added dropwise to respectively continuously in the reactor of the suspension-turbid liquid of nickel hydroxide and to stir, the velocity ratio of sodium hydrate aqueous solution and mixed liquor two controls to be 30: 100, control Ni element and titanium, zinc, the mol ratio of niobium three kinds of element total amounts is 100: 10, the pH value controlled in reactor is 12, it is 75 DEG C that reaction temperature controls, reaction time is 5h, the product of gained is proceeded in solid-liquid separator and is separated, gained solid matter washed with de-ionized water is less than 8 to pH, dry, obtain titanium, zinc, niobium doped with hydrogen nickel oxide active material.
Prepare burden by following weight portion:
Caliber is the multi-walled carbon nano-tubes 4 of 20-30nm
Cobalt hydroxide 8
Nanometer aluminium powder 1.5
Polytetrafluoroethylene 2.5
Plant rotten element 1.5
Titanium, zinc, niobium doped with hydrogen nickel oxide active material 100;
Above-mentioned batching and suitable quantity of water are stirred and obtains nickel hydroxide composite positive pole of the present invention.
comparative example
Be 1.07mol/L nickelous sulfate, 0.15mol/L zinc sulfate, 0.10mol/L manganese sulfate and 0.25mol/L aluminum sulfate mixed aqueous solution by concentration, concentration is 8.6mol/L ammoniacal liquor, and concentration is that 4.55mol/L sodium hydrate aqueous solution is injected in reactor continuously through delicate flow control system.
?in course of reaction, the addition of sulfate mixed aqueous solution is 3.00L/min, and the raw materials components mole ratio of ammoniacal liquor and nickelous sulfate is mNH
3h
2o: mNi
2+=0.9: 1.The temperature controlling reaction system is 60 ± 1 DEG C, and reacting liquid pH value is 13.5 ± 0.2, and in reaction, speed of agitator is 120 ± 5r/min, after successive reaction, then obtains ball-shape nickel hydroxide product through ageing, washing, drying.By obtained ball-shape nickel hydroxide with 90% mass percent and the mass percent nickel powder that is 8% mix after, add mass percent be 2% binding agent (mass ratio is HPMC and PTFE of 1:1) stir and make pulpous state.
By above-described embodiment one, two and the full-filling of comparative example products therefrom on the nickel foam substrate of 1cm × 1cm, and vacuumize 3 hours at 60 DEG C.Dried pole piece is tabletted under 5MPa, obtained anode.Obtained positive pole is become cadmium nickel simulated battery with excessive Cd electrode assembling, and electrolyte is 7mol/L KOH+15g/L LiOH solution.At probe temperature is 45 DEG C, carry out electric performance test, after tested this embodiment one with two material compared with the product of comparative example, specific capacity improves 15-19%, improves more than 1 times useful life.
Claims (1)
1. a preparation method for alkaline battery composite positive pole, comprises the steps:
(1) titanium, zinc, niobium doped with hydrogen nickel oxide active material is prepared
Be the ratio of 1: 2-3 in the mass ratio of n-amyl alcohol and surfactant softex kw, the two is mixed to get surfactant solution, then in surfactant solution, heptane is added, stir to obtain mixed liquor one, and wherein the ratio of the volume of heptane volume and surfactant solution is 3-4: 1;
The mixing salt solution of preparation containing Titanium Nitrate, zinc nitrate and nitric acid niobium, wherein the molar concentration of titanium, zinc and niobium is controlled as 0.5-1mol/L, 0.3-0.6mol/L and 0.1-0.2mol/L, joined in above-mentioned mixed liquor one by above-mentioned mixing salt solution and obtain mixed liquor two, wherein the volume ratio of mixing salt solution and mixed liquor one is 1:3-5;
Compound concentration is the sodium hydrate aqueous solution of 1-2mol/L;
The ratio of the weight ratio 1:10-15 of ball-shape nickel hydroxide powder and deionized water is taken ball-shape nickel hydroxide powder and inserts in the deionized water of corresponding amount, heats and stir, making the suspension-turbid liquid of nickel hydroxide;
The sodium hydrate aqueous solution prepared and mixed liquor two to be added dropwise to respectively continuously in the reactor of the suspension-turbid liquid of nickel hydroxide and to stir, the velocity ratio of sodium hydrate aqueous solution and mixed liquor two controls as (20-30): 100, control Ni element and titanium, zinc, the mol ratio of niobium three kinds of element total amounts is 100: (5-10), the pH value controlled in reactor is 11-12, reaction temperature controls as 65-75 DEG C, reaction time is 5-7h, the product of gained is proceeded in solid-liquid separator and is separated, gained solid matter washed with de-ionized water is less than 8 to pH, dry, obtain titanium, zinc, niobium doped with hydrogen nickel oxide active material,
(2) composite positive pole is prepared
Prepare burden by following weight portion:
Caliber is the multi-walled carbon nano-tubes 2-4 of 20-30nm
Cobalt hydroxide 5-8
Nanometer aluminium powder 1-1.5
Polytetrafluoroethylene 1-2.5
Plant rotten plain 1.2-1.5
Titanium, zinc, niobium doped with hydrogen nickel oxide active material 100;
Above-mentioned batching and suitable quantity of water are stirred and obtains nickel hydroxide composite positive pole of the present invention.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673615.0A CN104319381A (en) | 2014-11-23 | 2014-11-23 | Preparation method for composite cathode materials for alkaline battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410673615.0A CN104319381A (en) | 2014-11-23 | 2014-11-23 | Preparation method for composite cathode materials for alkaline battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104319381A true CN104319381A (en) | 2015-01-28 |
Family
ID=52374586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410673615.0A Pending CN104319381A (en) | 2014-11-23 | 2014-11-23 | Preparation method for composite cathode materials for alkaline battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104319381A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091846A (en) * | 2017-12-11 | 2018-05-29 | 宁波高新区锦众信息科技有限公司 | A kind of preparation method of alkaline secondary cell nickel hydroxide composite positive pole |
| CN110247029A (en) * | 2019-04-23 | 2019-09-17 | 金川集团股份有限公司 | A kind of preparation method of small grain size high additive niobium tungsten tantalum cobaltosic oxide |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505197A (en) * | 2002-11-28 | 2004-06-16 | 三洋电机株式会社 | Nickel hydrogen secondary battery |
| CN1553530A (en) * | 2003-05-30 | 2004-12-08 | 沈阳浩普科技发展有限公司 | Manufacture of cobalt coated spheric nickle hydroxide for power nickle-hydrogen battery |
| CN1699187A (en) * | 2004-05-21 | 2005-11-23 | 桂林工学院 | Microemulsion rapid precipitation method for preparing amorphous nickel hydroxide electrode active material |
| CN101297432A (en) * | 2005-10-28 | 2008-10-29 | 三洋电机株式会社 | Nickel-metal hydride battery |
| CN101572309A (en) * | 2009-06-08 | 2009-11-04 | 北京理工大学 | Co-doped alpha-Ni(OH)2 microemulsion synthesis method |
| CN103022486A (en) * | 2012-12-19 | 2013-04-03 | 中国科学院宁波材料技术与工程研究所 | Preparation method for anode material of lithium ion battery |
-
2014
- 2014-11-23 CN CN201410673615.0A patent/CN104319381A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1505197A (en) * | 2002-11-28 | 2004-06-16 | 三洋电机株式会社 | Nickel hydrogen secondary battery |
| CN1553530A (en) * | 2003-05-30 | 2004-12-08 | 沈阳浩普科技发展有限公司 | Manufacture of cobalt coated spheric nickle hydroxide for power nickle-hydrogen battery |
| CN1699187A (en) * | 2004-05-21 | 2005-11-23 | 桂林工学院 | Microemulsion rapid precipitation method for preparing amorphous nickel hydroxide electrode active material |
| CN101297432A (en) * | 2005-10-28 | 2008-10-29 | 三洋电机株式会社 | Nickel-metal hydride battery |
| CN101572309A (en) * | 2009-06-08 | 2009-11-04 | 北京理工大学 | Co-doped alpha-Ni(OH)2 microemulsion synthesis method |
| CN103022486A (en) * | 2012-12-19 | 2013-04-03 | 中国科学院宁波材料技术与工程研究所 | Preparation method for anode material of lithium ion battery |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108091846A (en) * | 2017-12-11 | 2018-05-29 | 宁波高新区锦众信息科技有限公司 | A kind of preparation method of alkaline secondary cell nickel hydroxide composite positive pole |
| CN110247029A (en) * | 2019-04-23 | 2019-09-17 | 金川集团股份有限公司 | A kind of preparation method of small grain size high additive niobium tungsten tantalum cobaltosic oxide |
| CN110247029B (en) * | 2019-04-23 | 2022-02-11 | 金川集团股份有限公司 | Preparation method of small-particle-size high-doping-amount niobium-tungsten-tantalum cobaltosic oxide |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105375010B (en) | A kind of preparation method of high compacted density lithium ion positive electrode | |
| CN103456916B (en) | Nonaqueous electrolytic solution secondary battery positive electrode composition | |
| CN104393285B (en) | Nickel-cobalt-aluminum ternary positive electrode material and its preparation method | |
| KR101577180B1 (en) | Positive electrode active material with improved energy density | |
| CN105958032B (en) | A kind of method and application improving zinc ferrite chemical property by doping nickel element | |
| CN106340651A (en) | Secondary battery and preparing method thereof | |
| CN104409685B (en) | A kind of method for preparing the anode material for lithium-ion batteries with core shell structure | |
| CN102569773B (en) | Anode material for lithium-ion secondary battery and preparation method thereof | |
| CN103633315B (en) | A kind of Hydrothermal Synthesis prepares the method for Ni-based layer structure tertiary cathode material | |
| CN103956477A (en) | Preparation method of cathode material of lithium-rich ternary compound lithium ion battery | |
| CN107293710A (en) | The preparation method of transition metal oxide/graphene composite material, negative electrode of lithium ion battery, lithium ion battery | |
| CN104103826B (en) | The manufacturing method of laminar structure lithium nickel metal oxide and lithium secondary battery comprising the oxide | |
| CN103647070B (en) | A kind of rare earth samarium is modified the preparation method of tertiary cathode material | |
| CN104659347A (en) | Ternary metal oxide positive material of sodium-ion battery and preparation method of ternary metal oxide positive material | |
| CN107528060A (en) | A kind of nickelic positive electrode of gradient and preparation method thereof and lithium ion battery | |
| CN107732193A (en) | It is a kind of using solid lithium battery of the nickelic positive electrode of core shell structure and preparation method thereof | |
| CN105098158A (en) | Zirconium-doped lithium-rich cathode material of lithium ion battery and preparation method of zirconium-doped lithium-rich cathode material | |
| CN109950523A (en) | Lithium ion battery negative material transition metal oxide/carbon preparation method | |
| CN107381656B (en) | Preparation method of lithium ion battery negative electrode material | |
| CN102832381A (en) | Preparation method of high-voltage cathode material Lil+xMn3/2-yNil/2-zMy+zO4 of lithium ion battery with long service life | |
| CN104466139A (en) | Preparation method of polyaniline-clad germanium-doped lithium manganate composite cathode material | |
| CN105406071A (en) | High-rate lithium vanadium phosphate positive electrode material, and preparation method and application thereof | |
| CN103490071B (en) | Lithium-Polyaniline Secondary Battery and preparation method thereof | |
| CN104319381A (en) | Preparation method for composite cathode materials for alkaline battery | |
| CN107256962B (en) | A kind of the tertiary cathode material nickel cobalt aluminium and preparation method and application of aluminium foil growth in situ |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Ding Huangxiang Inventor before: The inventor has waived the right to be mentioned |
|
| COR | Change of bibliographic data | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20150929 Address after: 325217 Ruian, Zhejiang Xian Xian Xian Xian Xian Village Applicant after: Ding Huangxiang Address before: 221300, Jiangsu, Xuzhou, Pizhou, Jinjiang West Road, Fairview homes (four opposite) 1 units 202, room 3 Applicant before: Wang Shuai |
|
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150128 |
|
| RJ01 | Rejection of invention patent application after publication |