Sodium-Bismuth-Titanium glass–ceramic network: A high capacity anode network for Na+ ion storage
Source abstract
Abstract
This article discusses 95[35Na 2O-65Bi 2O 3]: 5TiO 2 (mol%) glass-ceramic anode material system (abbreviated as GC-NBT 5.0 ) in order to overcome major issues with Na-ion battery technology, such as inadequate reversible capacity, rate capability, electrical conductivity, and safety. After heat treatment for different heat treating regimes, the production of intense intermediate domains Na 3Bi and Na 3Ti results in flexible active centers with which heavier Na + ions may react very easily for Na + ion storage in the glass-ceramic anode network. As evaluated at 50mA/g over a longer cycle life of up to 3000 cycles, the GC-NBT 5.0 -8h glass ceramic anode beats both glass anode and traditional graphite anodes with a specific discharge capacity of 801mAh/g. However, the cell design is still backed by the best electrical conductivity because of the good interfacial contact between the glass-ceramic anode and electrolyte, and the lowest cycle-dependent complex impedance characteristics (R ct and Z w), which guarantee consistent capacity retention and the highest Columbic efficiency over longer cycle durations.
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Research context
OpenAlex topics: Advancements in Battery Materials · Advanced Battery Materials and Technologies · Advanced Battery Technologies Research
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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