Silver-zinc (Ag-Zn) batteries are a promising battery system for flexible electronics owing to their high safety, high energy density and stable output voltage. However, poor cycling performance, low areal capacity, and inferior flexibility limit the practical application of Ag-Zn batteries. Herein, we develop a flexible quasi-solid-state Ag-Zn battery system with superior performance by using mild electrolyte and binder-free electrodes. Copper foam current collector is introduced to impede the growth of Zn dendrite, and the structure of Ag cathode is engineered by electrodeposition and chloridization process to improve the areal capacity. This novel battery demonstrates a remarkable cycle retention of 90% for 200 cycles at 3 mA/cm2. More importantly, this binder-free battery can afford a high capacity of 3.5 mAh/cm2 at 3 mA/cm2, an outstanding power density of 2.42 mW/cm2, and a maximum energy density of 3.4 mWh/cm2. An energy management circuit is adopted to boost the output volta
Oxis Faces Bankruptcy A Month After Announcing 450 Wh/kg Cells
May 27, 2021 at 8:47am ET ++ Deliveries of Quasi Solid-State lithium-sulfur batteries were promised to start in Autumn 2021.
OXIS Energy announced recently that soon it will start delivering its Quasi Solid-State lithium-sulfur (Li-S) batteries to customers for trial applications, proof of concept and demo systems.
Those batteries were promised to offer energy densities of 450 Wh/kg and 550 Wh/L (potentially suitable for electric aircrafts). However, according to
Electrive, the company is thin on cash and faces bankruptcy due to a lack of new investments. As the British accountancy firm BDO LLP, which says it has been appointed to wind up Oxis Energy Limited, writes in a statement obtained by our editors, the majority of the 60 staff employed at the headquarters and other sites in Oxfordshire and South Wales have been made redundant. Simon Girling and Chris Marsden of
OXIS Energy to supply solid-state lithium-sulphur cell and battery systems by autumn 2021
21 April 2021
OXIS Energy
Ltd., Abingdon, Oxfordshire, United Kingdom, 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.
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.
OXIS Energy to supply solid-state Li-S batteries for trials and testing by this fall; 600 Wh/kg and 900 Wh/L by 2026
UK-based OXIS Energy, a developer of Li-S battery technologies (earlier post), says it will deploy solid-state Lithium Sulfur (Li-S) cells 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.
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.
OXIS To Offer 450 Wh/kg Quasi Solid-State Li-S Cells In Fall 2021
Apr 21, 2021 1m ago ++ The 2026 target is 600 Wh/kg and 900 Wh/L.
OXIS Energy announced that in Autumn 2021 it intends to start delivering its Quasi Solid-State lithium-sulfur (Li-S) batteries to customers for trial applications, proof of concept and demo systems.
According to the company, those first-generation Quasi Solid-State Li-S cells, envisioned for aviation, marine, defense and heavy electric vehicles, will have energy density of
450 Wh/kg and
550 Wh/L.
That s noticeably more than usually used (the top EV cells are 250-300 Wh/kg) or so. However, there are other important factors, like power output, charging power, price, cycle-life, safety and more, which are not necessarily on par with state-of-the-art electric car cells.