A team from Vienna University of Technology published an update on their new regenerative oxygen-ion battery, with advantages over lithium-ion. These benefits include it is extremely durable, does not require rare elements, and resolves the problem of fire hazard. Moreover, it can regenerate many times over, promising a remarkably long service life.
Could Regenerative Oxygen-Ion Beat the Lithium-Ion Battery?
Lithium-ion batteries may have become almost ubiquitous, the team concedes. However, this does not mean that they are the best solution for all applications. Lithium, notwithstanding its disadvantages, may still be the energy-storage choice for electric cars and smartphones, because of high density. But it has a limited lifespan and can catch fire after an accident.
The new regenerative oxygen-ion battery from Vienna University of Technology has slightly lower density. But it makes up for this by delivering a longer-lasting technology that cannot catch fire, and is able to regenerate its stock of ions. Therefore, the Vienna University of Technology product could be ideal for bulk energy storage of renewable energy.
Why We Need an Alternative to Lithium-ion Bulk Storage
Lithium battery technology is more expensive than other options. Lithium metal is a volatile substance that can burn without requiring oxygen. This can happen when it overheats, or a traumatic moment bursts open the case. Protection circuits can help prevent the first cause, although these add more cost to an already expensive option.
A second major disadvantage that is harder to counter, is that lithium-ion capacity fades as it ages, even when the battery is not in use. Moreover, the product performs badly in extreme temperatures, and deteriorates faster if charged above 80%, or allowed to run flat.
Consumers are prepared to pay more for a product with these disadvantages, in exchange for meeting their desire for instant gratification. However, commerce may find the regenerative oxygen-ion battery a better compromise, especially when storing grid scale energy.
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