CN106946258A - Carborundum cell negative electrode material production method - Google Patents
Carborundum cell negative electrode material production method Download PDFInfo
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- CN106946258A CN106946258A CN201710110500.4A CN201710110500A CN106946258A CN 106946258 A CN106946258 A CN 106946258A CN 201710110500 A CN201710110500 A CN 201710110500A CN 106946258 A CN106946258 A CN 106946258A
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- carborundum
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- 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
- H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
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- 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 carborundum cell negative electrode material production method, choose ater carborundum ingot and be used as raw material, broken respectively using hydraulic hammer, jaw crusher, band sieve ball mill are crushed, shaping again is carried out carrying out raw material, spherical, sphericity >=0.95 will be shaped as originally, it is used as autogenous grinding abrasive media ball, nitric acid 10% and hydrofluoric acid 5% are eventually adding, chemical subtraction is carried out, finished product is obtained after dehydration.
Description
Technical field
The present invention is the production method of battery material, particularly belongs to carborundum cell negative electrode material production method.
Background technology
Influence with haze to people's health and socio-economic development is increasing, prevention and improvement of the country to haze
Work refer to the height urgently solved.
Coal fired power generation is warmed oneself and motor-vehicle tail-gas is the most important generating source of haze.The new energy such as solar energy, wind energy because
The capacity of storage batteries is low, high cost, short life, can only as conventional coal fired power generation supplement electric power, abandon light and abandon wind and account for quite
Ratio, pure electric automobile is also that same reason promotes slow.So haze is fundamentally solved, development ＆ production low cost, height
Capacity, long-life battery are only ways.
Carborundum cell negative electrode material is more more than carbon negative pole material, silicium cathode material circulation access times more stable negative
Pole material.
The content of the invention
It is an object of the invention to provide carborundum cell negative electrode material production method.
In order to solve the problems existing in background technology, the present invention uses following technical scheme：
Carborundum cell negative electrode material production method, it is characterised in that comprise the following steps：
1) choose ater carborundum ingot and be used as raw material；
2) ingot is crushed within size 200mm using hydraulic hammer is broken, reuses jaw crusher and break ingot
It is broken to arrive within size 50mm, finally it is crushed to particle diameter 0-3mm using band sieve ball mill；
3) material in mill body is released, separated with Vibration Screen 1-1.5mm as autogenous grinding abrasive media, remaining work
For autogenous tumbling mill raw material；
4) 1-1.5mm autogenous tumbling mills raw material is subjected to shaping again, spherical, sphericity >=0.95 will be shaped as originally, as
Autogenous grinding abrasive media ball；
5) while abrasive media ball is added in autogenous tumbling mill, autogenous grinding abrasive media ball 150kg, raw material 400kg are once put into,
Raw material and water are pressed 1:After 1 ratio mixing in input circulation cylinder, stir 30 minutes, squeeze into autogenous tumbling mill start using circulating pump and grind
Mill, by crushing material to 300 nanometers with thin；
6) material crushed is subjected to chemical subtraction, removes the various impurity in material, add nitric acid 10% and hydrogen fluorine
Acid 5%, carries out chemical subtraction, and fully reaction 24 hours improves purity to more than 99.5%.Add pure water by pH value adjust to
6.0~7.5；
7) slurry handled well, which is squeezed into centrifuge, to be dehydrated, and is adjusted centrifuge speed 3000rpm, is made micro mist water content
＜ 8%, then using microwave drying to moisture ＜ 0.03% after, sieve bale breaking dress.
Preferably, described raw material is chemical purity more than 99.15%, the ater carborundum knot of 6H structural purities 90%
Crystal block.
Preferably, in step 3) the middle raw material added, the pressure being put into fluidized bed jet mill grader is 0.7MPa,
Grinding time 20 minutes.
Preferably, described raw material is chemical purity more than 99.15%, the ater carborundum knot of 6H structural purities 90%
Crystal block.
In summary, invention advantage is as follows：1st, do not increase other impurities in production process, be conducive to later purification, reduce
Cost in production process.
2nd, it is intermittent to crush shaping using air-flow crushing shaping, compared compared to ball mill, the other grinding modes of Raymond mill, it is raw
Any impurity is not added during production.
3rd, it is 1-1.5mm carborundum medium balls using material self-grind mode of the same race, i.e. abrasive media, comminuting matter is all
Carborundum powder.
4th, that nanometer silicon carbide can be carried to chemical content is pure to 99.5% for this mode of production
Embodiment
Carborundum cell negative electrode material production method, it is characterised in that comprise the following steps：
1) choose ater carborundum ingot and be used as raw material；
2) ingot is crushed within size 200mm using hydraulic hammer is broken, reuses jaw crusher and break ingot
It is broken to arrive within size 50mm, finally it is crushed to particle diameter 0-3mm using band sieve ball mill；
3) material in mill body is released, separated with Vibration Screen 1-1.5mm as autogenous grinding abrasive media, remaining work
For autogenous tumbling mill raw material；
4) 1-1.5mm autogenous tumbling mills raw material is subjected to shaping again, spherical, sphericity >=0.95 will be shaped as originally, as
Autogenous grinding abrasive media ball；
5) while abrasive media ball is added in autogenous tumbling mill, autogenous grinding abrasive media ball 150kg, raw material 400kg are once put into,
Raw material and water are pressed 1:After 1 ratio mixing in input circulation cylinder, stir 30 minutes, squeeze into autogenous tumbling mill start using circulating pump and grind
Mill, by crushing material to 300 nanometers with thin；
6) material crushed is subjected to chemical subtraction, removes the various impurity in material.Add nitric acid 10% and hydrogen fluorine
Acid 5%, carries out chemical subtraction, and fully reaction 24 hours improves purity to more than 99.5%.Add pure water by pH value adjust to
6.0~7.5；
7) slurry handled well, which is squeezed into centrifuge, to be dehydrated, and is adjusted centrifuge speed 3000rpm, is made micro mist water content
＜ 8%, then using microwave drying to moisture ＜ 0.03% after, sieve bale breaking dress.
Preferably, described raw material is chemical purity more than 99.15%, the ater carborundum knot of 6H structural purities 90%
Crystal block.
Embodiment one
1) 100 parts of carborundum ingot is used, is crushed to using hydraulic hammer, jaw crusher, band sieve ball mill is crushed to
Particle diameter 0-3mm；Obtain 100 parts of 0-3mm raw materials.
2) separated with Vibration Screen 1-1.5mm as 10 parts of autogenous grinding abrasive media, remaining 90 parts are used as autogenous tumbling mill former
Material；
3) 90 parts of raw materials are circulated grinding, obtain 300 nanometers with thin 90 parts of semi-product material,
4) 90 parts of semi-finished stocks are subjected to physics and chemistry purification, obtain 87 parts of finished products.
5) dehydration collect to 87 parts of finished products, carry out product drying and packaging
Embodiment two
1) 100 parts of carborundum ingot is used, is crushed to using hydraulic hammer, jaw crusher, band sieve ball mill is crushed to
Particle diameter 0-3mm；Obtain 100 parts of 0-3mm raw materials.
2) separated with Vibration Screen 1-1.5mm as 15 parts of autogenous grinding abrasive media, remaining 85 parts are used as autogenous tumbling mill former
Material；
3) 85 parts of raw materials are circulated grinding, obtain 300 nanometers with thin 85 parts of semi-product material,
4) 85 parts of semi-finished stocks are subjected to physics and chemistry purification, obtain 82 parts of finished products.
5) dehydration collect to 80 parts of finished products, carry out product drying and packaging
Embodiment three
1) 100 parts of carborundum ingot is used, is crushed to using hydraulic hammer, jaw crusher, band sieve ball mill is crushed to
Particle diameter 0-3mm；Obtain 100 parts of 0-3mm raw materials.
2) separated with Vibration Screen 1-1.5mm as 20 parts of autogenous grinding abrasive media, remaining 80 parts are used as autogenous tumbling mill former
Material；
3) 80 parts of raw materials are circulated grinding, obtain 300 nanometers with thin 80 parts of semi-product material,
4) 80 parts of semi-finished stocks are subjected to physics and chemistry purification, obtain 75 parts of finished products.
5) dehydration collect to 72 parts of finished products, carry out product drying and packaging.
Claims (3)
1. carborundum cell negative electrode material production method, it is characterised in that comprise the following steps：
1) choose ater carborundum ingot and be used as raw material；
2) ingot is crushed within size 200mm using hydraulic hammer is broken, reuses jaw crusher and be crushed to ingot
Within size 50mm, finally particle diameter 0-3mm is crushed to using band sieve ball mill；
3) intermittent crushing shaping is carried out using fluidized bed jet mill grader, the material in mill body is released, vibratory sieve is used
Screen out 1-1.5mm as autogenous grinding abrasive media, remaining is used as autogenous tumbling mill raw material；
4) 1-1.5mm autogenous tumbling mills raw material is subjected to shaping again, spherical, sphericity >=0.95 will be shaped as originally, and be used as autogenous grinding
Abrasive media ball；
5) while abrasive media ball is added in autogenous tumbling mill, autogenous grinding abrasive media ball 150kg, raw material 400kg are once put into, by original
Material presses 1 with water:After 1 ratio mixing in input circulation cylinder, stir 30 minutes, autogenous tumbling mill start grinding squeezed into using circulating pump,
By crushing material to 300 nanometers with thin；
6) material crushed is subjected to chemical subtraction, removes the various impurity in material, add nitric acid 10% and hydrofluoric acid
5%, chemical subtraction is carried out, fully reaction 24 hours improves purity to more than 99.5%.Add pure water by pH value adjust to
6.0~7.5；
7) slurry handled well, which is squeezed into centrifuge, to be dehydrated, and is adjusted centrifuge speed 3000rpm, is made micro mist water content ＜
8%, then using microwave drying to moisture ＜ 0.03% after, sieve bale breaking dress.
2. carborundum cell negative electrode material production method according to claim 1, it is characterised in that described raw material is change
Learn purity more than 99.15%, the ater carborundum ingot of 6H structural purities 90%.
3. carborundum cell negative electrode material production method according to claim 1, it is characterised in that in step 3) middle addition
Raw material, it is 0.7MPa, grinding time 20 minutes to be put into pressure in fluidized bed jet mill grader.
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| CN201710110500.4A CN106946258A (en) | 2017-02-28 | 2017-02-28 | Carborundum cell negative electrode material production method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963802A (en) * | 2019-12-12 | 2020-04-07 | 湖南太子新材料科技有限公司 | Surface shaping treatment method of silicon carbide micro powder |
| CN111933907A (en) * | 2020-07-30 | 2020-11-13 | 内蒙古凯金新能源科技有限公司 | Durable battery negative electrode material and processing technology thereof |
| WO2021221234A1 (en) * | 2020-04-29 | 2021-11-04 | 주식회사 엘피엔 | Method for manufacturing novel silicon nanoparticles |
| CN113991105A (en) * | 2021-10-30 | 2022-01-28 | 中科巨擎航天科技有限公司 | Preparation method of silicon carbide for battery cathode |
Citations (4)
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| CN101870469A (en) * | 2010-06-01 | 2010-10-27 | 河南新大新材料股份有限公司 | Method for preparing crystal silicon wafer cutting edge material |
| CN102249236A (en) * | 2011-06-02 | 2011-11-23 | 江苏大阳微粉科技有限公司 | Production process for silicon carbide micropowder |
| CN103819194A (en) * | 2014-01-04 | 2014-05-28 | 河南晟道科技有限公司 | Special-purpose ceramic material for sintering silicon carbide ceramics membranes |
| CN105503195A (en) * | 2016-01-29 | 2016-04-20 | 河南晟道科技有限公司 | High-roundness high-purity silicon carbide ultrafine powder material |
-
2017
- 2017-02-28 CN CN201710110500.4A patent/CN106946258A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101870469A (en) * | 2010-06-01 | 2010-10-27 | 河南新大新材料股份有限公司 | Method for preparing crystal silicon wafer cutting edge material |
| CN102249236A (en) * | 2011-06-02 | 2011-11-23 | 江苏大阳微粉科技有限公司 | Production process for silicon carbide micropowder |
| CN103819194A (en) * | 2014-01-04 | 2014-05-28 | 河南晟道科技有限公司 | Special-purpose ceramic material for sintering silicon carbide ceramics membranes |
| CN105503195A (en) * | 2016-01-29 | 2016-04-20 | 河南晟道科技有限公司 | High-roundness high-purity silicon carbide ultrafine powder material |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110963802A (en) * | 2019-12-12 | 2020-04-07 | 湖南太子新材料科技有限公司 | Surface shaping treatment method of silicon carbide micro powder |
| WO2021221234A1 (en) * | 2020-04-29 | 2021-11-04 | 주식회사 엘피엔 | Method for manufacturing novel silicon nanoparticles |
| CN111933907A (en) * | 2020-07-30 | 2020-11-13 | 内蒙古凯金新能源科技有限公司 | Durable battery negative electrode material and processing technology thereof |
| CN113991105A (en) * | 2021-10-30 | 2022-01-28 | 中科巨擎航天科技有限公司 | Preparation method of silicon carbide for battery cathode |
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Application publication date: 20170714 |