Phase transitions in Li-ion electrode materials during (dis)charge are decisive for battery performance, limiting high-rate capabilities and playing a crucial role in the cycle life of Li-ion batteries. However, the difficulty to probe the phase nucleation and growth in individual grains is hindering fundamental understanding and progress. Here we use synchrotron microbeam diffraction to disclo...

Li-ion batteries are a key technology for addressing the global challenge of clean renewable energy and environment pollution. Their contemporary applications, for portable electronic devices, electric vehicles, and large-scale power grids, stimulate the development of high-performance battery materials with high energy density, high power, good safety, and long lifetime. High-throughput calcul...

Accelerating insoluble Li2S2−Li2S reduction catalysis to mitigate the shuttle effect has emerged as an innovative paradigm for high-efficient lithium-sulfur battery cathodes, such single-atom catalysts by offering high-density active sites realize in situ reaction with solid Li2S2. However, profound origin of diverse species on solid-solid sulfur and modulation principles remains ambiguous. Her...

Since its appearance in 1991, the Li ion battery has been the major power source driving the rapid digitalization of our daily life; however, much of the processes and mechanisms underpinning this newest battery chemistry remains poorly understood. As in any electrochemical device, the major challenge comes from the electrolyte/electrode interfaces, where the discontinuity in charge distributio...

Lithium-ion (Li-ion) batteries are now widely implemented as the power or energy source for everything from portable electronics to electric vehicles. The electrochemical charge storage in the batteries is intimately related to their material properties. This chapter gives an overview of the methods for characterizing battery materials, both ex situ and in situ in practical cells. An important ...

The developments in the field of e-mobility currently exceed all previous goals and expectations, speed development is rapid. battery costs dropped by 98 % last three decades storage capacity increased a factor to four same period. recent strong progress lithium-ion batteries (LIB) can be associated both engineering pack, active materials for cathode. From system perspective, only fraction over...