Main points
- Researchers at the University of Surrey have developed a new anode design for lithium-ion batteries that significantly increases their capacity using silicon-carbon materials.
- The new “Vertically Integrated Silicon–Carbon Nanotube” structure allows the anodes to store over 3,500 mAh per gram, more than nine times the capacity of traditional graphite anodes, without losing stability.
Battery technology could change smartphones / Unsplash / camilo jimenez
Researchers have unveiled a new type of lithium-ion battery that can store significantly more energy without losing stability, potentially impacting the battery life of smartphones and gadgets.
A team from the University of Surrey has developed a new anode design for lithium-ion batteries that significantly increases their capacity . The technology is based on silicon-carbon materials, but solves one of the key problems of such batteries. This is reported by Digital Trends .
How is the new battery different from regular ones?
Silicon was previously considered a promising replacement for graphite in batteries because it can store more energy. However, it expands and contracts during charging and discharging, which over time leads to cracks and rapid wear.
To overcome this limitation, scientists have created a new structure called the ” Vertically Integrated Silicon–Carbon Nanotube .” It uses a flexible carbon nanotube framework covered with a layer of silicon. This design allows the material to change shape without damage.
As a result, the new anode is able to store more than 3,500 mAh per gram of material . For comparison, traditional graphite anodes provide about 370 mAh per gram. This is more than a nine-fold increase in capacity.
As MSN writes, it is important that the new battery is not only more capacious, but also more stable . It can better withstand many charging cycles, which has long been a major problem with high-performance batteries.
This paves the way for wider adoption of the technology . Companies like Apple and Samsung have previously been wary of silicon-carbon batteries precisely because of the risks of degradation and instability.
If the new development proves effective outside the lab, it could overcome these limitations, ultimately leading to smartphones, smartwatches, and other devices with much longer battery life without compromising reliability.