Li/Pyridinium Primary Batteries

Materials, designs, and operational characteristics for fully biodegradable primary batteries.

Prof. J. A. Rogers Department of Materials Science and Engineering Beckman Institute for Advanced Science and Technology and Frederick Seitz Materials Research Laboratory University of Illinois at Urbana-Champaign Urbana , IL 61801 , USA E-mail: [email protected] Dr. L. Yin, Dr. X. Huang Department of Materials Science and Engineering Beckman Institute for Advanced Science and Technology and...

Fluorinated Nanocarbons as Cathode in Primary Lithium Batteries

The electrochemical performances of fluorinated carbon nanofibres have been tested for a use as cathode material in primary lithium battery using LiBF4 PC:DME 1M as electrolyte. For a very narrow fluorination range [420-450°C], the fluorine content in the carbon nanofibres increases up to CF0.78 and so do both the energy and the power densities. A maximum of 8057 W.kg power density has been rea...

Rechargeable Batteries

Purpose: The goal of our battery research is to produce an all solid-state, high performance rechargeable cell. Moving to a liquid-free polymer electrolyte eliminates the need for heavy casing material, thus the energy density is increased significantly. In addition, the absence of solvent additives leads to better thermal and chemical stability, broadening the range of applications for which t...

SWARM - Increasing Households' Internal PV Consumption and Offering Primary Control Power with Distributed Batteries

High-Power-Density, High-Energy-Density Fluorinated Graphene for Primary Lithium Batteries

Li/CFx is one of the highest-energy-density primary batteries; however, poor rate capability hinders its practical applications in high-power devices. Here we report a preparation of fluorinated graphene (GFx) with superior performance through a direct gas fluorination method. We find that the so-called "semi-ionic" C-F bond content in all C-F bonds presents a more critical impact on rate perfo...