Large-scale Production of Si/C Composites for Negative Electrode thorough the Liquid Pulse Injection Technique

2015 Fiscal Year Final Research Report

• Project/Area Number: 26820342
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Reaction engineering/Process system
• Research Institution: Hokkaido University
• Principal Investigator: Iwamura Shinichiroh 北海道大学, 工学(系)研究科(研究院), 助教 (10706873)
• Project Period (FY): 2014-04-01 – 2016-03-31
• Keywords: 製造プロセス / リチウムイオン電池 / シリコン負極 / 炭素材料 / 複合材料 / ナノ構造制御 / 化学気相成長 / ナノファイバー

Outline of Final Research Achievements

For efficient preparation of high-capacity anode materials for lithium-ion battery, silicon (Si) / carbon composites were prepared through the liquid pulse injection (LPI) technique. Homogeneous composites could be prepared using a mixture of Si nanoparticles, carbon source and catalyst source as an initial material. The obtained composites have higher discharge capacity and cyclability than those of a mechanical mixture of Si nanopartilces and carbon nanofibers (CNFs). Because this technique is low-cost and easy for scale-up, this work should contribute toward industrial usage of high capacity Si anode.

Free Research Field

化学工学