Braided Current Collectors for Wearable Electronics

Braided Core Structure Boosts Energy Density in Fiber Lithium-Ion Batteries

05-May-2023 - An ultrathin braided wire in the core of an electrode increases the energy density of lithium-ion batteries, a team of researchers reports in the journal Angewandte Chemie. Batteries of this kind could be incorporated into functional textiles and used to supply power to smartphones and other ...

Two Worlds, One Material

Polymers with a metal backbone

08-Feb-2023 - Until now, it has been clear: you can have a metal or a plastic, but not both in one. However, things don’t have to stay that way. In the journal Angewandte Chemie, a Chinese research team has now reported a polymer with a metallic backbone that is conductive, thermally stable, and has ...

Prelithiation strategy enhances battery performance at low temperatures

06-Dec-2017 - When it is cold in winter, cars tend to have starting problems. This is not much better with electric cars, which inevitably lose capacity of their rechargeable lithium-ion batteries at freezing temperatures. Now, Chinese scientists have offered a strategy to avoid plunging battery kinetics. In a ...

How To Draw Electricity from the Bloodstream

A one-dimensional fluidic nanogenerator with a high power-conversion efficiency

11-Sep-2017 - Men build dams and huge turbines to turn the energy of waterfalls and tides into electricity. To produce hydropower on a much smaller scale, Chinese scientists have now developed a lightweight power generator based on carbon nanotube fibers suitable to convert even the energy of flowing blood in ...

Chemoselective reduction with non-flammable gold catalyst

08-Jul-2008 - Yong Cao and colleagues from Fudan University, Shanghai, have discovered that the non-flammable Au/TiO2 demonstrates great potential for catalytic transfer hydrogenation. Traditionally this transformation relies on the use of homogeneous transition metal complexes, which are not very practical, ...

'Rocks-in-forest' catalyst supports

19-Jun-2008 - A new type of catalyst support has been designed by Yi Tang, Hualong Xu and co-workers at Fudan University in Shanghai, China. They embedded silver-based microparticle catalysts in silicon nanowire arrays. The Si nanowire arrays not only provide a barrier to the possibility of agglomeration of ...