AU2001237172A1 - Surface purification of natural graphite and effect of impurities on grinding and particle size distribution - Google Patents
Surface purification of natural graphite and effect of impurities on grinding and particle size distributionInfo
- Publication number
- AU2001237172A1 AU2001237172A1 AU2001237172A AU3717201A AU2001237172A1 AU 2001237172 A1 AU2001237172 A1 AU 2001237172A1 AU 2001237172 A AU2001237172 A AU 2001237172A AU 3717201 A AU3717201 A AU 3717201A AU 2001237172 A1 AU2001237172 A1 AU 2001237172A1
- Authority
- AU
- Australia
- Prior art keywords
- graphite
- grinding
- impurities
- purification
- effect
- 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.)
- Abandoned
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
- H01M4/58—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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/20—Graphite
- C01B32/21—After-treatment
- C01B32/215—Purification; Recovery or purification of graphite formed in iron making, e.g. kish graphite
-
- 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
- H01M10/052—Li-accumulators
- H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
-
- 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
- H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
- H01M4/133—Electrodes based on carbonaceous material, e.g. graphite-intercalation compounds or CFx
-
- 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 present invention relates to the physical or chemical specific purification of natural mineral graphite. This purification is preferably applied to the surface of natural graphite in order to allow the formation of a passivation film during the first electrical discharge or the insertion of lithium in the graphite when the latter is used in a lithium-ion cell. The grinding to a small size before purification allows the optimization of the distribution of the particles, resulting in a more uniform electrode. This grinding is carried out in the presence of the natural impurities of the graphite that play the role of a micro-abrasive and result in a hardness of the graphite that increases its mechanical properties.
Applications Claiming Priority (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA002299626A CA2299626A1 (en) | 2000-02-25 | 2000-02-25 | Surface purification of natural graphite and use of purified graphite in a carbon-lithium anode |
CA2299626 | 2000-02-25 | ||
CA2307118 | 2000-04-28 | ||
CA002307118A CA2307118A1 (en) | 2000-04-28 | 2000-04-28 | Surface purification of natural graphite and use of purified graphite in a carbon-lithium anode |
PCT/CA2001/000233 WO2001062666A1 (en) | 2000-02-25 | 2001-02-23 | Surface purification of natural graphite and effect of impurities on grinding and particle size distribution |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2001237172A1 true AU2001237172A1 (en) | 2001-09-03 |
Family
ID=25681570
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2001237172A Abandoned AU2001237172A1 (en) | 2000-02-25 | 2001-02-23 | Surface purification of natural graphite and effect of impurities on grinding and particle size distribution |
Country Status (9)
Country | Link |
---|---|
US (2) | US20050207966A1 (en) |
EP (1) | EP1257501B1 (en) |
JP (2) | JP2003528019A (en) |
AT (1) | ATE402907T1 (en) |
AU (1) | AU2001237172A1 (en) |
DE (1) | DE60135094D1 (en) |
ES (1) | ES2307591T3 (en) |
PT (1) | PT1257501E (en) |
WO (1) | WO2001062666A1 (en) |
Families Citing this family (28)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CA2321345A1 (en) | 2000-10-02 | 2002-04-02 | Abdelbast Guerfi | Use of graphite in a composite to reduce ice accretion |
CA2324431A1 (en) | 2000-10-25 | 2002-04-25 | Hydro-Quebec | New process for obtaining natural graphite particles in spherical shape: modelling and application |
CA2374132A1 (en) * | 2002-03-01 | 2003-09-01 | Hydro Quebec | Procedure for the surface purification of graphite containing impurities by means of a diluted aqueous solution of nh4f and h2so4 |
US6830595B2 (en) | 2002-12-20 | 2004-12-14 | Advanced Energy Technology Inc. | Method of making composite electrode and current collectors |
US7537682B2 (en) | 2004-03-17 | 2009-05-26 | California Institute Of Technology | Methods for purifying carbon materials |
US20070218364A1 (en) * | 2005-10-05 | 2007-09-20 | Whitacre Jay F | Low temperature electrochemical cell |
US8232007B2 (en) | 2005-10-05 | 2012-07-31 | California Institute Of Technology | Electrochemistry of carbon subfluorides |
US7563542B2 (en) * | 2005-10-05 | 2009-07-21 | California Institute Of Technology | Subfluorinated graphite fluorides as electrode materials |
US8377586B2 (en) | 2005-10-05 | 2013-02-19 | California Institute Of Technology | Fluoride ion electrochemical cell |
US7794880B2 (en) | 2005-11-16 | 2010-09-14 | California Institute Of Technology | Fluorination of multi-layered carbon nanomaterials |
US8658309B2 (en) * | 2006-08-11 | 2014-02-25 | California Institute Of Technology | Dissociating agents, formulations and methods providing enhanced solubility of fluorides |
JP2010521782A (en) * | 2007-03-14 | 2010-06-24 | カリフォルニア・インスティテュート・オブ・テクノロジー | High discharge rate battery |
JP4513822B2 (en) * | 2007-03-30 | 2010-07-28 | Tdk株式会社 | Electrode and electrochemical device |
KR101131937B1 (en) * | 2008-10-10 | 2012-04-03 | 강원대학교산학협력단 | Negative active material for lithium rechargeable battery, method of preparing the same, and lithium rechargeable battery comprising the same |
WO2010095716A1 (en) * | 2009-02-20 | 2010-08-26 | 三菱化学株式会社 | Carbon material for lithium ion secondary batteries |
KR20120029314A (en) | 2010-09-16 | 2012-03-26 | 전자부품연구원 | Anode active material, lithium secondary battery having the anode active material and manufacturing method thereof |
WO2012036372A2 (en) * | 2010-09-16 | 2012-03-22 | 전자부품연구원 | Anode active material, non-aqueous lithium secondary battery including the same, and manufacturing method thereof |
CN104271500B (en) * | 2012-06-29 | 2016-10-26 | 海洋王照明科技股份有限公司 | A kind of graphene film and its production and use |
CN104003382B (en) * | 2014-06-17 | 2016-10-05 | 鸡西市同泰石墨制品有限公司 | A kind of high purity graphite chemical purification continuous producing method |
JP6783505B2 (en) * | 2014-07-18 | 2020-11-11 | 積水化学工業株式会社 | Flaked graphite, electrode material and flake graphite-resin composite material |
US20180230014A1 (en) * | 2015-08-11 | 2018-08-16 | Metoxs Pte Ltd. | Method for cost-efficient industrial production of graphite oxide, graphene oxide and graphene |
KR102460964B1 (en) | 2015-12-03 | 2022-10-31 | 삼성에스디아이 주식회사 | Carbonaceous material, anode active material including the same, lithium battery including the anode active material, and method of preparing the carbonaceous material |
US10710094B2 (en) | 2016-05-18 | 2020-07-14 | Syrah Resources Ltd. | Method and system for precision spheroidisation of graphite |
CN105926007B (en) * | 2016-05-27 | 2018-01-16 | 中南大学 | The water logging method for floating of charcoal and electrolyte is reclaimed in a kind of cathode carbon pieces from aluminum cell waste |
CN105821445B (en) * | 2016-05-27 | 2018-01-16 | 中南大学 | A kind of method that charcoal and electrolyte are reclaimed in cathode carbon pieces from aluminum cell waste |
US10710882B2 (en) * | 2016-06-27 | 2020-07-14 | Syrah Resources Ltd. | Purification process modeled for shape modified natural graphite particles |
KR102475986B1 (en) | 2019-01-17 | 2022-12-09 | 주식회사 엘지에너지솔루션 | Negative electrode active material for secondary battery, negative electrode including same and manufacturing method thereof |
KR20230011901A (en) | 2020-05-18 | 2023-01-25 | 에코그라프 리미티드 | Manufacturing method of purified graphite |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT220123B (en) * | 1960-04-26 | 1962-03-12 | Grafitbergbau Kaisersberg Fran | Process for processing microcrystalline, so-called dense or earthy graphites up to a carbon content of at least 99% |
JPS57161129A (en) * | 1981-03-27 | 1982-10-04 | Shohei Tamura | Production of carbon fiber and its derivative |
JPH06102529B2 (en) * | 1989-07-19 | 1994-12-14 | 関西熱化学株式会社 | Graphite purification method |
US5686138A (en) * | 1991-11-12 | 1997-11-11 | Sanyo Electric Co., Ltd. | Lithium secondary battery |
JP3241850B2 (en) * | 1992-06-01 | 2001-12-25 | 株式会社東芝 | Lithium secondary battery |
US5340670A (en) * | 1992-06-01 | 1994-08-23 | Kabushiki Kaisha Toshiba | Lithium secondary battery and method of manufacturing carbonaceous material for negative electrode of the battery |
JP3162531B2 (en) * | 1993-03-18 | 2001-05-08 | 株式会社東芝 | Lithium secondary battery |
JP3069509B2 (en) * | 1995-04-10 | 2000-07-24 | 株式会社日立製作所 | Non-aqueous secondary battery and method for producing graphite powder |
US5756062A (en) * | 1996-05-29 | 1998-05-26 | Ucar Carbon Technology Corporation | Chemically modified graphite for electrochemical cells |
JP3873325B2 (en) * | 1996-07-25 | 2007-01-24 | 大阪瓦斯株式会社 | Carbon material for lithium secondary battery negative electrode and method for producing the same |
-
2001
- 2001-02-23 US US10/204,715 patent/US20050207966A1/en not_active Abandoned
- 2001-02-23 ES ES01909376T patent/ES2307591T3/en not_active Expired - Lifetime
- 2001-02-23 DE DE60135094T patent/DE60135094D1/en not_active Expired - Lifetime
- 2001-02-23 WO PCT/CA2001/000233 patent/WO2001062666A1/en active IP Right Grant
- 2001-02-23 AU AU2001237172A patent/AU2001237172A1/en not_active Abandoned
- 2001-02-23 PT PT01909376T patent/PT1257501E/en unknown
- 2001-02-23 EP EP01909376A patent/EP1257501B1/en not_active Expired - Lifetime
- 2001-02-23 AT AT01909376T patent/ATE402907T1/en active
- 2001-02-23 JP JP2001561683A patent/JP2003528019A/en active Pending
-
2007
- 2007-04-23 US US11/790,020 patent/US7993621B2/en not_active Expired - Lifetime
-
2012
- 2012-12-10 JP JP2012269514A patent/JP5739859B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2013091598A (en) | 2013-05-16 |
EP1257501B1 (en) | 2008-07-30 |
JP2003528019A (en) | 2003-09-24 |
US20070194158A1 (en) | 2007-08-23 |
DE60135094D1 (en) | 2008-09-11 |
JP5739859B2 (en) | 2015-06-24 |
PT1257501E (en) | 2008-09-19 |
EP1257501A1 (en) | 2002-11-20 |
WO2001062666A1 (en) | 2001-08-30 |
US20050207966A1 (en) | 2005-09-22 |
US7993621B2 (en) | 2011-08-09 |
ATE402907T1 (en) | 2008-08-15 |
ES2307591T3 (en) | 2008-12-01 |
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