New Delhi: As our smartphones and gadgets grow wider in number and thinner in size, one sticky point still remains- battery. For that, we tend to opt for a higher mAh battery, believing it would provider longer support. However, are these lithium-ion batteries safe? Do they take less time to get recharged? Researchers at the Stanford University have come up with a solution to that. A new type of battery that is both safe and fully charges in a minute.
Researchers at the university have developed innovative aluminium-ion battery that is less prone to catching fire, is built at a fraction of the price of the standard batteries and is capable of getting fully recharged with laser speed.
Hongjie Dai, a professor of chemistry at Stanford, said that the new rechargeable aluminum battery may replace existing storage devices, such as alkaline batteries, which are bad for the environment, and lithium-ion batteries, which occasionally burst into flames. He further said, "the new battery won't catch fire, even if you drill through it."
There have been earlier experiments to produce an aluminium battery that could be durable. However, they usually died after only about 100 recharge cycles. The prototype developed at Stanford was able to withstand more than 7,500 recharge cycles without any capacity loss. A typical lithium-ion battery lasts only about 1,000 cycles.
Apart from being durable, the the aluminum battery is also flexible. One can bend it and fold it, thereby increasing its potential usage in bendable electronics.
Although still a prototype, the new battery generates about 2 volts of electricity, which is about half the voltage of a typical lithium battery. However, the researchers are confident that by improving the cathode material could increase the voltage and energy density.
Overall, the new battery has inexpensive electrodes, good safety, high-speed charging, flexibility and long cycle life.
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