Journal
NANOSCALE RESEARCH LETTERS
Volume 10, Issue -, Pages -Publisher
SPRINGEROPEN
DOI: 10.1186/s11671-015-1103-0
Keywords
Polycrystalline silicon particle; High columbic efficiency; Lithium-ion battery
Funding
- National Thousand Talents Program of China
- Chinese Academy of Sciences [GJHZ1316]
- Japan Society for the Promotion of Science [GJHZ1316]
- Beijing Natural Science Foundation [2142031]
- Beijing Municipal Science and Technology Commission project [Z141100003814002]
- Major State Basic Research Development Program of China [2013CB632103, 2011CBA00608]
- Scientific Research Foundation for the Returned Overseas Chinese Scholars, State Education Ministry
- National High-Technology Research and Development Program of China [2012AA012202, 2011AA010302]
- Key Laboratory of Nanodevices and Applications, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences
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Micro-sized polycrystalline silicon particles were used as anode materials of lithium-ion battery. The columbic efficiency of the first cycle reached a relatively high value of 91.8 % after prelithiation and increased to 99 % in the second cycle. Furthermore, columbic efficiency remained above 99 % for up to 280+ cycles. The excellent performances of the batteries were the results of the use of a proper binder to protect the electrode from cracking and the application of a suitable conductive agent to provide an efficient conductive channel. The good performance was also significantly attributed to the electrolyte in the packaging process.
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