“The main focus for tin is in the positive anode electrode of lithium ion batteries, usually made today
from graphite on a copper foil. Next generation products are already adding silicon into the graphite
to increase capacity. Some will probably use tin, either as an alternative or in addition to enhance
silicon performance. For example, China’s largest electric vehicle producer, BYD, recently patented
a tin-cobalt-carbon technology for anodes”
International Tin Association article published by Australian Resource Investment
Researchers at Cornell University working on the next generation of rechargeable Li-ion batteries have shown that the addition of tin to lithium and sodium anodes not only protects the anodes but increases their charge carrying capability. Life for batteries with a tin-coated anode was shown to be 500 hours at a charge density of 3 milliamperes per square centimeter compared with 55 hours if the anode was unprotected.
New Generation Rechargeable Battery Made With Tin