https://scholars.lib.ntu.edu.tw/handle/123456789/409007
標題: | Silicon oxide-on-graphite planar composite synthesized using a microwave-assisted coating method for use as a fast-charging lithium-ion battery anode | 作者: | Yang N.-H. Wu Y.-S. Chou J. Wu H.-C. Wu N.-L. |
關鍵字: | Anode;Fast-charging;Graphite;Li-ion battery;Microwave synthesis;Silicon | 公開日期: | 2015 | 卷: | 296 | 起(迄)頁: | 314-317 | 來源出版物: | Journal of Power Sources | 摘要: | Abstract A high-performance Si oxide-coated graphite flake (SGF) composite anode for Li-ion batteries (LIBs) is synthesized using a microwave-assisted coating method. In this synthesis, a solution comprising liquid polysiloxanes is used as the Si-containing precursor. Heating the graphite flakes (GFs) with microwave induces the deposition of a Si-containing conformal layer on the GF surfaces, which is subsequently calcined to produce SGFs. When tested as a LIB anode, the resulting SGF exhibits a reversible specific capacity of nearly 480 mAh g-1, 97% capacity retention at a current density of 2.5 A g-1 (approximately 5 C-rate), and 94% capacity retention after 500 cycles with an average Coulombic efficiency > 99.9%. The results suggest new strategies for both designing and synthesizing high-performance anode materials for LIB applications. ? 2015 Elsevier B.V. |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/409007 | ISSN: | 03787753 | DOI: | 10.1016/j.jpowsour.2015.07.066 | SDG/關鍵字: | Anodes; Charging (batteries); Coatings; Electric batteries; Electrodes; Graphite; Ions; Lithium; Lithium alloys; Lithium compounds; Microwaves; Secondary batteries; Silicon; Silicon oxides; Silicones; Coulombic efficiency; Fast charging; High-performance anode materials; Li-ion batteries; Lithium-ion battery anodes; Microwave assisted; Microwave synthesis; Reversible specific capacity; Lithium-ion batteries |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。