News Commentary | May 19, 2021
Scientists at Harvard University have developed a design for a solid‑state battery (SSB) that uses a hierarchy of interface stabilities to achieve an ultrahigh current density with no lithium dendrite penetration. The researchers claimed that the multilayer battery, where the less stable electrolyte... Not part of subscription
News Commentary | June 23, 2021
Following funding of $1.65 million from the U.S Department of Defense for the development of Li‑ion batteries, NanoGraf Technologies claims to have achieved a high energy density Li‑ion cell using silicon anodes. The company claims that the 18650 cells have achieved an energy density of 800 Wh/L and... Not part of subscription
News Commentary | February 23, 2022
Li‑S (lithium‑sulfur) batteries are a promising next‑generation battery technology because they use more earth‑abundant materials, but the technology has faced steep barriers to commercialization due to poor cycle life. Dr. Vibha Kalra's group at Drexel University solves the capacity‑fade issue by ... Not part of subscription
by Chloe Herrera
China's GAC Group is in the final vehicle testing phase for its graphene-based battery that can withstand up to 6C charge rates. Due to its high electron mobility and good rate performance, graphene has the potential to be a successful anode material. The cost to manufacture of graphene has been a barrier to mass production, and creating a 3D anode material has typically only been achieved at lab scale. Other companies have claimed to have a graphene battery but have failed to follow through with any product. While pure graphene batteries are unlikely to become the norm in Li-ion batteries, this announcement indicates that innovations in carbon nanotechnology will become increasingly important for competing with silicon-based anodes.
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