JPWO2022185838A5 - - Google Patents
Download PDFInfo
- Publication number
- JPWO2022185838A5 JPWO2022185838A5 JP2022536568A JP2022536568A JPWO2022185838A5 JP WO2022185838 A5 JPWO2022185838 A5 JP WO2022185838A5 JP 2022536568 A JP2022536568 A JP 2022536568A JP 2022536568 A JP2022536568 A JP 2022536568A JP WO2022185838 A5 JPWO2022185838 A5 JP WO2022185838A5
- Authority
- JP
- Japan
- Prior art keywords
- carbonaceous
- mass
- producing
- less
- graphite material
- 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
- 239000007770 graphite material Substances 0.000 claims 8
- 239000000463 material Substances 0.000 claims 7
- 238000004519 manufacturing process Methods 0.000 claims 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 3
- 239000002243 precursor Substances 0.000 claims 3
- 238000010298 pulverizing process Methods 0.000 claims 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims 2
- 239000003575 carbonaceous material Substances 0.000 claims 2
- 239000011248 coating agent Substances 0.000 claims 2
- 238000000576 coating method Methods 0.000 claims 2
- 238000005087 graphitization Methods 0.000 claims 2
- 239000002245 particle Substances 0.000 claims 2
- 229910052710 silicon Inorganic materials 0.000 claims 2
- 239000010703 silicon Substances 0.000 claims 2
- 238000004438 BET method Methods 0.000 claims 1
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 claims 1
- 238000001354 calcination Methods 0.000 claims 1
- 229910052742 iron Inorganic materials 0.000 claims 1
- 229910001416 lithium ion Inorganic materials 0.000 claims 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 claims 1
- 229910052753 mercury Inorganic materials 0.000 claims 1
- 239000007773 negative electrode material Substances 0.000 claims 1
- 238000002459 porosimetry Methods 0.000 claims 1
- 239000011148 porous material Substances 0.000 claims 1
Claims (6)
前記粉砕工程で得られた粉砕物を、珪素元素および鉄元素の存在下で黒鉛化する黒鉛化工程と、
前記黒鉛化工程で得られた黒鉛化物を解砕する解砕工程と、
前記解砕工程で得られた解砕物に炭素質前駆体を付着させる付着工程と、
前記炭素質前駆体が付着した前記解砕物を焼成することにより、前記炭素質前駆体を炭素質にして、前記炭素質で前記解砕物を被覆する被覆工程と、を備え、
前記解砕工程がメカノケミカル処理からなる、炭素質被覆黒鉛材料の製造方法。 a pulverizing step of pulverizing the fired mesophase spherules;
A graphitization step of graphitizing the pulverized product obtained in the pulverization step in the presence of elemental silicon and elemental iron;
A crushing step of crushing the graphitized material obtained in the graphitization step;
an attaching step of attaching a carbonaceous precursor to the crushed material obtained in the crushing step;
a coating step of calcining the crushed material to which the carbonaceous precursor is attached to convert the carbonaceous precursor into a carbonaceous material and coat the crushed material with the carbonaceous material ;
A method for producing a carbonaceous-coated graphite material , wherein the crushing step comprises a mechanochemical treatment .
前記鉄元素の添加量が前記粉砕物１００質量部に対し１質量部以上、５質量部以下である請求項１または２に記載の炭素質被覆黒鉛材料の製造方法。 The addition amount of the silicon element is 1 part by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the pulverized material,
3. The method for producing a carbonaceous-coated graphite material according to claim 1, wherein the iron element is added in an amount of 1 part by mass or more and 5 parts by mass or less with respect to 100 parts by mass of the pulverized material.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2021031718 | 2021-03-01 | ||
| JP2021031718 | 2021-03-01 | ||
| PCT/JP2022/004421 WO2022185838A1 (en) | 2021-03-01 | 2022-02-04 | Method for producing carbonaceous substance-coated graphite material |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JPWO2022185838A1 JPWO2022185838A1 (en) | 2022-09-09 |
| JP7210810B1 JP7210810B1 (en) | 2023-01-23 |
| JPWO2022185838A5 true JPWO2022185838A5 (en) | 2023-02-01 |
Family
ID=83154999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2022536568A Active JP7210810B1 (en) | 2021-03-01 | 2022-02-04 | Method for producing carbonaceous coated graphite material |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP7210810B1 (en) |
| KR (1) | KR20220125255A (en) |
| CN (1) | CN115279694A (en) |
| TW (1) | TWI796149B (en) |
| WO (1) | WO2022185838A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2884746B2 (en) | 1990-09-03 | 1999-04-19 | 松下電器産業株式会社 | Non-aqueous electrolyte secondary battery |
| WO1997018160A1 (en) * | 1995-11-14 | 1997-05-22 | Osaka Gas Company Limited | Cathode material for lithium secondary battery, process for manufacturing the same, and secondary battery using the same |
| JP2000090928A (en) * | 1998-09-11 | 2000-03-31 | Nippon Steel Corp | Manufacture of highly graphitized carbon powder for lithium secondary battery negative electrode |
| JP4672958B2 (en) * | 2002-10-10 | 2011-04-20 | Ｊｆｅケミカル株式会社 | Graphite particles, lithium ion secondary battery, negative electrode material therefor and negative electrode |
| JP4689391B2 (en) | 2005-07-28 | 2011-05-25 | Ｊｆｅケミカル株式会社 | Method for producing graphite material for negative electrode material of lithium ion secondary battery |
| JP4707570B2 (en) | 2006-01-20 | 2011-06-22 | Ｊｆｅケミカル株式会社 | Method for producing fine graphite particles |
| JP6240586B2 (en) * | 2014-10-28 | 2017-11-29 | Ｊｆｅケミカル株式会社 | Graphite particles for negative electrode material of lithium ion secondary battery, negative electrode of lithium ion secondary battery and lithium ion secondary battery |
| JP6412520B2 (en) * | 2015-06-01 | 2018-10-24 | Ｊｆｅケミカル株式会社 | Carbonaceous coated graphite particles for lithium ion secondary battery anode material, lithium ion secondary battery anode and lithium ion secondary battery |
| CN112424118A (en) * | 2019-06-13 | 2021-02-26 | 杰富意化学株式会社 | Method for producing monolithic mesophase graphitized article |
-
2022
- 2022-02-04 JP JP2022536568A patent/JP7210810B1/en active Active
- 2022-02-04 KR KR1020227023929A patent/KR20220125255A/en not_active Application Discontinuation
- 2022-02-04 WO PCT/JP2022/004421 patent/WO2022185838A1/en active Application Filing
- 2022-02-04 CN CN202280002280.2A patent/CN115279694A/en active Pending
- 2022-02-25 TW TW111107007A patent/TWI796149B/en active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111164803B (en) | Silicon-based negative electrode material for secondary battery, preparation method of silicon-based negative electrode material and secondary battery | |
| Zhang et al. | Spherical nano-Sb@ C composite as a high-rate and ultra-stable anode material for sodium-ion batteries | |
| KR101866004B1 (en) | Nano-silicon composite negative electrode material used for lithium ion battery, process for preparing the same and lithium ion battery | |
| WO2021056981A1 (en) | Preparation method for silicon-based composite negative electrode material for lithium battery | |
| Chen et al. | Si-based anode with hierarchical protective function and hollow ring-like carbon matrix for high performance lithium ion batteries | |
| Wang et al. | Controllable synthesis of SnO 2@ C yolk–shell nanospheres as a high-performance anode material for lithium ion batteries | |
| JP7420836B2 (en) | Silica particles for electrode materials and their manufacturing method and application | |
| JP5375953B2 (en) | Mixed carbon material and negative electrode for non-aqueous secondary battery | |
| JP2012533498A (en) | Nanostructured silicon-carbon composites for battery electrodes | |
| Wang et al. | Facile synthesis of double-layer-constrained micron-sized porous Si/SiO2/C composites for lithium-ion battery anodes | |
| Zhao et al. | Compact Si/C anodes fabricated by simultaneously regulating the size and oxidation degree of Si for Li-ion batteries | |
| CN104022257A (en) | Silicon dioxide composite anode material for lithium ion battery, as well as preparation method and application of silicon dioxide composite anode material | |
| Chu et al. | Rice husk derived silicon/carbon and silica/carbon nanocomposites as anodic materials for lithium-ion batteries | |
| JP2015159010A (en) | Active material for titanium-niobium complex oxide electrode and lithium secondary battery using the same | |
| TW200746523A (en) | Negative electrode material for lithium ion secondary battery and process for producing the same | |
| JP2015159010A5 (en) | ||
| JP2006032241A (en) | Positive electrode material for lithium ion secondary cell, its manufacturing method, and lithium ion secondary cell | |
| JP6961980B2 (en) | Composite active material for lithium secondary battery and its manufacturing method | |
| JP2002348109A5 (en) | ||
| Jang et al. | Highly conducting fibrous carbon-coated silicon alloy anode for lithium ion batteries | |
| Lin et al. | Self-assembled porous microsized composite of nano-Co1− xS/biomass derived activated carbon by a facile solvothermal method as anode material of lithium ion battery | |
| Yu et al. | Facile synthesis of nanostructured carbon nanotube/iron oxide hybrids for lithium-ion battery anodes | |
| CN113851627A (en) | Porous silicon-carbon negative electrode material and preparation method thereof | |
| JP2022063234A5 (en) | ||
| Mao et al. | Improving the lithium storage performance of SnO2 nanoparticles by in-situ embedding into a porous carbon framework |