Share this article Share this article OXFORD, England, April 20, 2021 /PRNewswire/ -- OXIS Energy will deploy Solid-State Lithium Sulfur (Li-S) cell and battery systems to its clients and partners worldwide by Autumn 2021 for use in trials, proof of concept and demonstrator battery systems for the Aviation, Marine, Defence and Heavy electric Vehicles (HEV) sectors. An OXIS lithium sulfur cell OXIS has been collaborating with European manufacturers on the development of Solid-State Li-S technology for almost 4 years. As a result of a technological breakthrough three years ago, OXIS has filed 9 new families of patents to protect both Quasi and Solid-State Intellectual Property Rights.