Anode minimized lithium metal batteries based on a surface-engineered polymeric nanocarbon electrode
발표자
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초록
내용
Commercialized Li-ion batteries (LIBs) using a typical graphite anode can deliver only reversible capacities of 372 mA h g-1 which is not enough to satisfy consumer’s needs in the latest technology application fields. To address the energy limitation of LIBs, a lithium metal anode (LMA), one of the promising next-generation batteries, has been studied because of its high theoretical capacity (3860 mA h g‑1). However, LMA suffers from severe volumetric change, low coulombic efficiency (CE), unruly dendritic lithium growth. In this study, a 3D-structured bacterial cellulose membrane featuring a macroporous and interconnected nanostructure was selected as a 3D-nanocarbon scaffold for accommodating LMA, and effects of inorganic additive coating on the overall surface of the 3D polymeric nanocarbon scaffold (3D-PNS) were investigated. The surface-modified led to a highly improved CE and stable cycling performance. Accordingly, Anode-minimized lithium metal batteries are successfully achieved by using the 3D-PNS-based LMA.