Advanced Structures in Electrodeposited Tin Base Negative Electrodes for Lithium Secondary Batteries

Abstract

Tin anodes deposited electrochemically on a copper foil current collector are studied to develop a next-generation lithium-ion battery with higher energy density. Better cycle performance through ten initial cycles under full charge and discharge conditions was attained by annealing tin electrodeposited on a rough surface copper foil. The annealing process was found to change the main active material from Sn to Cu6Sn5 with some minor compounds. Furthermore, a microcolumnar structure of the active material portion was found to be self-organized in accordance with the surface profile of the foil during the first charge-discharge cycle. Advantages of these structural features are discussed in terms of the initial charge and discharge performance, including specific capacity and coulombic efficiency measured by using a three-electrode cell. © 2003 The Electrochemical Society. All rights reserved.

Novel methods for preparing nanocrystalline SnO2 and Sn/SnO2 composite by electrodeposition

“…Each of these coatings had a high porosity and a large surface area, which could be used as the electrodes for gas sensor [19] and Li-ion batteries [5,20]. It is also found that the ratio of Sn/SnO 2 can be easily controlled by simply and properly tuning the applied voltage, which can further enhance the properties of the deposits for the applications mentioned above.…”

Nanostructured anode materials for lithium-ion batteries: principle, recent progress and future perspectives

“…87,[92][93][94] Take the compounds of Sn-based alloys as an example. Tamura et al 95 demonstrated that SnCu alloy plating on the Cu foil current collector can minimize volumetric changes by virtue of the formation of Cu 6 Sn 5 and Cu 3 Sn-like phases, and the rough surface of the Cu foil contributes to the stress relief among alloy micro-particles. The team later studied a Sn-Co alloy active composite attached on a Cu current collector which showed more desirable battery behavior.…”

High-performance Sn–Ni alloy nanorod electrodes prepared by electrodeposition for lithium ion rechargeable batteries

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