Interface Characteriestics of Thin Film Between Copper Current Collector and Active Material as an Anode Electrode for Micro-Patterned Lithium Ion Batteries

Title
Interface Characteriestics of Thin Film Between Copper Current Collector and Active Material as an Anode Electrode for Micro-Patterned Lithium Ion Batteries
Authors
박지훈차이룰 후다야김아영최원창변동진이중기
Keywords
Interface control film; Photolithography; SnO2 film; Anode materials and Micro lithium ion batteries
Issue Date
2012-08
Publisher
IUMRS-ICA 2012
Abstract
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.
URI
http://pubs.kist.re.kr/handle/201004/43064
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KIST Publication > Conference Paper
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