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Electrodeposited Cu2Sb as anode material for 3-dimensional Li-ion microbatteries

An increasing demand on high energy and power systems has arisen not only with the development of electric vehicle (EV), hybrid electric vehicle (HEV), telecom, and mobile technologies, but also for specific applications such as powering of microelectronic systems. To power those microdevices, an extra variable is added to the equation: a limited footprint area. Three-dimensional (3D) microbatteries are a solution to combine high-density energy and power. In this work, we present the formation of Cu2Sb onto three-dimensionally architectured arrays of Cu current collectors. Sb electrodeposition conditions and annealing post treatment are discussed in light of their influence on the morphology and battery performances. An increase of cycling stability was observed when Sb was fully alloyed with the Cu current collector. A subsequent separator layer was added to the 3D electrode when optimized. Equivalent capacity values are measured for at least 20 cycles. Work is currently devoted to the identification of the causes of capacity fading.
- Uppsala University Sweden
- French National Centre for Scientific Research France
- Institut de Chimie France
- University of Picardie Jules Verne France
- University of Zurich Switzerland
Energie électrique, Energy storage, Li, [SPI.NRJ]Engineering Sciences [physics]/Electric power, 620, [ SPI.NRJ ] Engineering Sciences [physics]/Electric power, Microstructure
Energie électrique, Energy storage, Li, [SPI.NRJ]Engineering Sciences [physics]/Electric power, 620, [ SPI.NRJ ] Engineering Sciences [physics]/Electric power, Microstructure
citations This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).27 popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.Top 10% influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).Top 10% impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.Top 10% visibility views 42 download downloads 16 - 42views16downloads
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