“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
China tin trade subdued in January
Latest official customs statistics released by China last week showed that the country’s tin ore and concentrate imports from Myanmar fell by 57% year-on-year to 31,359 tonnes (gross weight) in January, predominantly due an earlier Chinese Spring Festival holiday period than in recent years. Refined tin imports also fell 34% over the same period to 643 tonnes.
The top 10 global producers of refined tin showed a 2.4% reduction in aggregate production in 2016 to 218,165t according to the International Tin Research Institute (ITRI). Their share of the global market also declined marginally from 67% in 2015 to 65% in 2016. The top 4 Chinese producers account for just over 50% of top 10 production and managed a 1% increase in 2016 with the help of imports from Myanmar covering a decline in domestic raw material supply.