2013 Fiscal Year Final Research Report
Preparation of Carbon Microspheres as Anode Materials for Lithium-Ion Batteries
| Project/Area Number |
23560809
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | Gunma National College of Technology |
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Principal Investigator |
OTA Michiya 群馬工業高等専門学校, その他部局等, 教授 (40168951)
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| Project Period (FY) |
2011 – 2013
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| Keywords | リチウムイオン二次電池用炭素負極材 / 炭素小球体 / 粒子径制御 / 急速充電 / 放電容量 / 細孔 / 比容量 / レート特性 |
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| Research Abstract |
Porous resin-based microspheres were prepared from the mixture of pyrene-based thermosetting resin and polyethylene glycol in a presence of acid catalyst by heating and stirring. The low polymerization degree of the resin was much important and then the particle size of the microspheres were 1-2 micrometer. The microspheres seemed to be the aggregates with open cleft on the surfaces. The carbon microspheres heat-treated at 1000 to 2500 degree C were evaluated as anode materials for batteries, compared with the results of graphite. Specific discharge capacities of graphite anode rapidly decreased down to 10 % at 100 to 2000 mA/g as a current density. On the other hand, those of carbon sphere anodes decreased only down to 47 %. These results suggest that those carbon spheres have several possibilities such as rapid charging and high discharge capacitance.
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Research Products
(25 results)
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[Presentation] Particle size control of porous carbon micro- spheres with thermosetting resin2014
Author(s)
Michiya Ota, Takuma Ishibashi, Daiki Sakurai, Maki Sato, Yoshihiro Takizawa, Kiyoaki Imoto, Noriko Yoshizawa, Osamu Tanaike
Organizer
247th American Chemical Society National Meeting & Exposition, Dallas, Texas, Result Content View, Poly 436
Year and Date
2014-03-18
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[Presentation]2011
Author(s)
鈴木淳史,狩野貴史,加藤正明,太田道也,大手丈夫,安田榮一
Organizer
第58回応用物理学会学関係連合講演会
Year and Date
2011-03-27
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