Performance of silicon-air batteries using industrial silicon as anode

Nowadays electrical energy storage technology is always looking for a more complete solution, from fuel cells to metal-air batteries. Among various metal-air batteries, silicon-air batteries which is a type of batteries with high specific energies seem to be one of the solutions. Silicon-air batteries stand out from the rest of metal-air batteries because of the high content of silicon in the earth's crust, therefore have gained a lot of attention. Corresponding to plenty of experiments that had been done, we found that we can directly use industrial silicon as the anode of silicon-air batteries since industrial silicon itself contains trace number of other elements which more or less have impact on discharge performance of the batteries, and industrial silicon is easier to acquire comparing to pure silicon and doped silicon. The performance of silicon-air batteries is evaluated by its discharge behavior, actual specific energy and specific capacity. The prospective for aqueous silicon-air batteries are worthy of attention. And the silicon-air batteries using industrial silicon have no passivation on its anodic surface, which leads the batteries to discharge without terminating.

Automated summary

Nowadays, there is a continuous search for a more complete solution in electrical energy storage technology, including fuel cells and metal-air batteries. Among various metal-air batteries, silicon-air batteries, known for their high specific energies, seem to be a promising solution. They stand out due to the abundance of silicon in the earth's crust, making them easier to acquire compared to pure silicon or doped silicon. Additionally, experiments have shown that industrial silicon can be directly used as the anode in silicon-air batteries, with its minor elemental impurities affecting their discharge performance. The performance of silicon-air batteries is evaluated based on their discharge behavior, actual specific energy, and specific capacity. Aqueous silicon-air batteries and their potential are also worth attention. Furthermore, silicon-air batteries using industrial silicon do not experience passivation on their anodic surfaces, allowing for continuous discharge without interruption.