Scientists in Japan demonstrated a hard-carbon electrode that can greatly increase the capacity of a sodium-ion battery. With further work on the long-term performance, the discovery could make sodium-ion batteries better able to compete on energy density with their lithium-ion counterparts.
A research group at the Helmholtz Zentrum Berlin has conducted an in depth analysis looking at the crystalline structure of methylammonium lead iodide, one of the most promising perovskite materials for solar cell production. The group made a series of discoveries which they hope will help to unlock some of the remaining issues in creating cells that are both stable and highly efficient.
Researchers at Sweden’s Lund University have discovered a mechanism by which iron-based solar cells lose up to 30% of their charge. Understanding how the loss occurs, say the researchers, will be the first step to closing the loophole and developing more efficient solar cells based on the abundant material.
Scientists at the University of Maryland have developed an organic polymer electrode which they claim demonstrates stable function for a sodium-ion battery over 50,000 cycles and also offers encouraging performance in magnesium-ion and aluminum-ion storage devices.
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