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A study of Li-ion diffusion kinetics in the fullerene-coated Si anodes of lithium ion batteries
Arie, Arenst Andreas,Lee, Joong Kee Royal Swedish Academy of Sciences 2010 Physica scripta Vol.2010 No.t139
<P>The diffusion coefficient of lithium ions in fullerene-coated silicon thin film electrodes, prepared by the plasma-assisted deposition technique, was estimated by a specific electrochemical measurement known as cyclic voltammetry (CV) and then compared with that of a bare silicon film used as the anode in lithium ion batteries. Based on our experimental range, the diffusion coefficient of the fullerene-coated Si thin film was found to be ∼10<SUP>−9</SUP> cm<SUP>2</SUP> s<SUP>−1</SUP> or two orders of magnitude higher than that of the bare Si thin film (∼10<SUP>11</SUP> cm<SUP>2</SUP> s<SUP>−1</SUP>). It can be concluded that the fullerene film acts as an artificial solid electrolyte interphase (SEI) layer during charging–discharging tests.</P>
Is Public-Private Partnerships (PPP) a Promising Strategy for Rural Development?
Arie Halachmi 연세대학교(미래캠퍼스) 빈곤문제국제개발연구원 2010 地域發展硏究 Vol.19 No.2
Can partnership and contracting out be a promising strategy for enhancing rural development where other methods have failed? Could the private production and delivery of services that used to be performed by government improve public sector productivity? A study of school busing in a rural county in Tennessee (USA) suggests that there is more to Public-Private Partnership (PPP) than what meets the eye. The paper concludes that the special rural context of a PPP can mitigate and change the Principal-Agent nature of the relationships between the partners from a zero sum game kind of a relationship to a collaboration and a win-win game.