Cathode Coating and Dopants Enabling Cobalt Free Batteries

The Limiting Factor reports that Tesla will use Polycrystal cathodes with new coatings and dopants to enable cobalt-free batteries with greater energy density and more charge cycles. This will be about a 4% improvement in material cost and energy density. The main improvement will be about a 7% gain from factory process improvement.

Single Crystal cathodes would have greater energy density but would have higher costs.

Research Papers on Polycrystal Cathodes, Coatings and Dopants

ACS Energy Letters – Beyond Doping and Coating: Prospective Strategies for Stable High-Capacity Layered Ni-Rich Cathodes

Advanced Energy Materials – Recent Progress and Perspective of Advanced High-Energy Co-Less Ni-Rich Cathodes for Li-Ion Batteries: Yesterday, Today, and Tomorrow

Journal of the Electrochemical Society – Is Cobalt Needed in Ni-Rich Positive Electrode Materials for Lithium Ion Batteries?

SOURCES- Tesla, Limiting Factor, Journals (Journal of the Electrochemical Society, ACS Energy Letters, Advanced Energy Materials
Written By Brian Wang,