The Anode Challenge for Lithium‐Ion Batteries: A Mechanochemically Synthesized Sn–Fe–C Composite Anode Surpasses Graphitic Carbon
- Materials Science and Engineering State University of New York at Binghamton Binghamton NY 13902‐6000 USA
- Department of Chemistry State University of New York at Binghamton Binghamton NY 13902‐6000 USA
- Materials Science and Engineering State University of New York at Binghamton Binghamton NY 13902‐6000 USA, Center for Functional Nanomaterials Brookhaven National Laboratory Upton NY 11973 USA
- Materials Science and Engineering State University of New York at Binghamton Binghamton NY 13902‐6000 USA, Department of Chemistry State University of New York at Binghamton Binghamton NY 13902‐6000 USA
Carbon-based anodes are the key limiting factor in increasing the volumetric capacity of lithium-ion batteries. Tin-based composites are one alternative approach. Nanosized Sn–Fe–C anode materials are mechanochemically synthesized by reducing SnO with Ti in the presence of carbon. The optimum synthesis conditions are found to be 1:0.25:10 for initial ratio of SnO, Ti, and graphite with a total grinding time of 8 h. This optimized composite shows excellent extended cycling at the C/10 rate, delivering a first charge capacity as high as 740 mAh g-1 and 60% of which still remained after 170 cycles. The calculated volumetric capacity significantly exceeds that of carbon. It also exhibits excellent rate capability, delivering volumetric capacity higher than 1.6 Ah cc-1 over 140 cycles at the 1 C rate.
- Research Organization:
- State Univ. of New York, Binghamton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- DE‐SC0012704; EE0006852; SC0012704; AC02-98CH10886
- OSTI ID:
- 1341087
- Alternate ID(s):
- OSTI ID: 1310491; OSTI ID: 1401414; OSTI ID: 1429058
- Journal Information:
- Advanced Science, Journal Name: Advanced Science Vol. 3 Journal Issue: 4; ISSN 2198-3844
- Publisher:
- Wiley Blackwell (John Wiley & Sons)Copyright Statement
- Country of Publication:
- Germany
- Language:
- English
Web of Science
Similar Records
Mechanochemical synthesis and anode properties of SnO-based amorphous materials
Mechanochemical approaches to employ silicon as a lithium-ion battery anode