Researchers at the University of Texas in Austin, USA, have shown that simple manufacturing methods can be used to produce a tin-aluminum alloy that is less expensive and is currently a copper-graphite anode for lithium-ion batteries. Double the charging capacity.
50-70% of the tin is added to the aluminum block during the casting process to form an alloy which can then be mechanically rolled into an alloy foil using a conventional process. During this process, the tin particles are reduced to nanometer size, trapped in aluminum, and stabilized during charging. The resulting material thickness and weight are one quarter and one half of a typical anode, respectively.
These two-step processes are much simpler than the current techniques of coating copper electrodes with graphite and do not address the unique complexity and scalability issues associated with nanomaterial development. It is also more energy efficient because the dilution of the energy capacity is less, and the dilution of the energy capacity in a copper-graphite anode lithium ion battery is usually caused by the extra weight of the copper liner foil.
This new anode material is named an interdigitated anode.
The development of an inexpensive and scalable electrode nanomaterial manufacturing process is exciting, team lead arumugam manthiram said, our research shows that this material is very good in the performance indicators required for the commercialization of lithium-ion batteries. Achievements.
Because of its cost and technical advantages, this tin-aluminum alloy has broad development potential in the anode material market for lithium-ion batteries.
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