A facile strategy to construct binder-free flexible carbonate composite anode at low temperature with high performances for lithium-ion batteries

Three-Dimensional Self-Supported Ge Anode for Advanced Lithium-Ion Batteries

Three-dimensional (3D) self-supported Ge anode is one of the promising candidates to replace the traditional graphite anode material for high-performance binder-free lithium-ion batteries (LIBs). The enlarged surface area and the shortened ions/electrons transporting distance of the 3D electrode would greatly facilitate the rapid transfer of abundant lithium ions during cycling, thus achieve enhanced energy and power density during cycling. Cycle stability of the 3D self-supported Ge electrode would be improved due to the obtained enough space could effectively accommodate the large volume expansion of the Ge anode. In this review, we first describe the electrochemical properties and Li ions storage mechanism of Ge anode. Moreover, the recent advances in the 3D self-supported Ge anode architectures design are majorly illustrated and discussed. Challenges and prospects of the 3D self-supported Ge electrode are finally provided, which shed light on ways to design more reliable 3D Ge-based electrodes in energy storage systems.

C/Sn deposition on a helical carbon nanofiber matrix as a high performance anode for lithium-ion batteries

C/Sn/HCNF composites were successfully prepared by solution phase synthesis and carbon thermal reduction. Within the hybrid composite, the HCNFs, Sn and carbon layer show a synergistic effect in improving coulombic efficiency and electrical capacity.

Atomic layer deposited nanolaminates of zirconium oxide and manganese oxide from manganese(III)acetylacetonate and ozone

Atomic layer deposition method was used to grow thin films consisting of ZrO₂and MnO_xlayers. Magnetic and electric properties were studied of films deposited at 300 °C. Some deposition characteristics of the manganese(III)acetylacetonate and ozone process were investigated, such as the dependence of growth rate on the deposition temperature and film crystallinity. All films were partly crystalline in their as-deposited state. Zirconium oxide contained cubic and tetragonal phases of ZrO₂, while the manganese oxide was shown to consist of cubic Mn₂O₃and tetragonal Mn₃O₄phases. All the films exhibited nonlinear saturative magnetization with hysteresis, as well as resistive switching characteristics.