Interface Characteriestics of Thin Film Between Copper Current Collector and Active Material as an Anode Electrode for Micro-Patterned Lithium Ion Batteries
- Interface Characteriestics of Thin Film Between Copper Current Collector and Active Material as an Anode Electrode for Micro-Patterned Lithium Ion Batteries
- 박지훈; 차이룰 후다야; 김아영; 최원창; 변동진; 이중기
- Interface control film; Photolithography; SnO2 film; Anode materials and Micro lithium ion batteries
- Issue Date
- IUMRS-ICA 2012
- An interface patterned electrode has been developed to prepare between copper current collector and tin oxide as active
material by ECR-MOCVD system. The as-patterned electrodes were characterized by X-ray diffraction, field emission
scanning electron microscopy and transmission electron microscopy measurements. Field emission scanning electron
microscopy and transmission electron microscopy observation revealed the patterning distribution of tin oxide from
5um to 10um on the patterned copper current collectors in Fig. 1. The electrochemical performances were evaluated by
using pouch-type cells versus metallic lithium. The patterned thin film anode electrode prepared by a photolithography
exhibits a high reversible specific capacity of 1450 mAhg-1 at a current density of 200 mAg-1 and excellent rate
capability, even at a high current density of 5000 mAg-1, the reversible capacity was still as high as 907 mAhg-1. The
electrochemical test results show that the micro patterned electrode prepared by the photolithography synthesis
approach is a promising anode material for lithium-ion batteries.
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