University of South Africa
Overview of innovation

The invention involves a sol-gel-based uniform carbon-coating process designed to create high-performance lithium-ion batteries. This process uses carbon nanotubes and an improved carbon-coating method that incorporates organic phosphoric acid as both a carbon and phosphorus source. This allows for the production of uniformly carbon-coated lithium-ion batteries with greatly enhanced ion diffusion and electrical conductivity. By overcoming the limitations of lithium iron phosphate (LiFePO₄) cathode materials, this technology addresses issues such as low capacity, low energy density, and poor cycle life that often lead to premature battery failure. The result is a new generation of lithium-ion batteries with longer lifespans, higher energy density, and better safety features, making them suitable for demanding applications such as electric vehicles (EVs), portable electronics, and grid energy storage.

Type of Intellectual Property protection
Patent
Innovation Opportunity Type
Investment
Partnership
Industry
​Electricity, gas, steam and air conditioning supply
Electricty, gas, steam, and air conditioning supply
Technology Readiness Level
TRL 6 – Prototype tested in real-world settings
Website link
https://www.unisa.ac.za/sites/corporate/default/Research-&-Innovation/Innovation,-Technology-Transfer-and-Commercialisation