Yang, MinHo Choi, Jaewon Kim, Sung-Kon Braun, Paul V. 2024-01-19T22:01:36Z 2024-01-19T22:01:36Z 2021-09-03 2018-09 2194-4288 https://pubs.kist.re.kr/handle/201004/120971 Interfacial engineering is important to achieve high electrochemical performance in energy storage devices. It becomes particularly important for flexible devices, where stresses at the interface between the active material and current collector can be significant upon flexing. Here, we describe simple yet powerful method to tune surface properties, such as wettability and adhesion of carbon cloth (CC) as current collectors to active materials via using dopamine chemistry. We show how a polydopamine-coated CC (p-CC) exhibits strong adhesion with CuS nanosheets, enabling negligible capacitance fading after over 100 folding cycles. The CuS/p-CC system exhibits attractive electrochemical properties, including a high specific capacitance (337 Fg(-1) at 0.5 Ag-1), good rate capability (81.9% capacitance retention at a rate of 10 Ag-1), and excellent capacitance retention (about 96.1% after 1000 cycles). An asymmetric supercapacitor fabricated by assembly of RGO/p-CC and CuS/p-CC provides a stable cell voltage up to 1.5 V and energy and power densities of up to 48.3 Wh kg(-1) and 6919 W kg(-1) on a full electrode basis. English WILEY-V C H VERLAG GMBH LITHIUM ION BATTERY CURRENT COLLECTOR HIGH-ENERGY HIERARCHICAL CUS FREE ELECTRODE PERFORMANCE GRAPHENE ANODE INTERFACE FOAM Flexible Binder-Free CuS/Polydopamine-Coated Carbon Cloth for High Voltage Supercapacitors Article 10.1002/ente.201800153 1 ENERGY TECHNOLOGY, v.6, no.9, pp.1852 - 1858 ENERGY TECHNOLOGY 6 9 1852 1858 scie scopus 000445726900031 2-s2.0-85054011460 Energy & Fuels Energy & Fuels Article LITHIUM ION BATTERY CURRENT COLLECTOR HIGH-ENERGY HIERARCHICAL CUS FREE ELECTRODE PERFORMANCE GRAPHENE ANODE INTERFACE FOAM Carbon cloth Copper sulfide Interfacial engineering Polydopamine Supercapacitor