Advances in battery technology are beginning to become thinner and faster to charge, as large-scale investments in the battery sector begin to bear fruit,media reported. Enevate, from California, has been developing silicon anode technology since 2005, and now the company says it has not only succeeded in implementing a fast-charging solution for lithium-ion electric vehicle batteries, but also easily increased energy density.
The usual current lithium battery anodes are made of graphite. But Benjamin Park, founder and CEO of Enevate, says replacing it with silicon would not only increase the battery’s energy density by 25% in an instant, but also enable ultra-fast charging — but people will have to charge it by 400 percent. the fact that it will eventually lead to cracking and degradation of the battery surface. Such charging will cost the battery hundreds of cycles.
In response, Enevate proposed a solution that uses a hard, porous, conductive film with its own small silicon “balloon” inside each pore. This means that silicon can expand and contract at will without causing any cracking, without causing any cracking problems.
These features add about 30% of the energy density — up to 350 Wh/kg, extremely fast charging capacity — to the current technology – and can effectively charge the energy required for 400 km of range to the battery in 5 minutes. It’s not far from filling up the tank, and if the infrastructure is better, it’s going to be a game-changer.
In addition, the battery can be well charged at temperatures well below freezing, which is difficult for other lithium batteries to do. ‘Its electrodes are not affected by lithium deposition, which we know can cause dangerous dendrites to form, which can cause the battery to short-circuit and catch fire,’ Says Enevate. As a result, they also seem to be safer than the batteries people use today.
Several big companies, including LG, Samsung, Mitsubishi, Renault and Nissan, have invested $111 million in the technology, and Enevate says its batteries are now ready for the big times. Park disclosed in an interview that Enevate is designing battery packs for models 2024 and 2025 to allow its batteries to enter the consumer products of major manufacturers. It is unclear who or for what purpose they will produce the batteries, but it is believed the investors above may be among them.