- 2D Crystals
Applied Graphene Materials recently updated on the successful completion of the exploratory phase of its development program with Airbus Defense and Space. The program aims at using graphene for satellite applications.
Now, AGM states that based on the success of the initial work, both parties are collaborating on a final product development phase, with a desired target to qualify the material for flight use and first application by the end of 2017 or early 2018.
Saint Jean Carbon has reported the results of the first phase of its graphene battery project, announced in January, 2017. According to SJC, while primary at this point, the graphene battery has outperformed the graphite battery, as shown by a greater discharge capacity of about 30%. Both batteries were manufactured with the same material, battery “A” graphite anode and “B” graphene anode.
The company supplied performance results, among which are the graphite anode’s theoretical capacity of 372 mAh/g and the theoretical capacity of the graphene anode of 700 mAh/g. Beyond 100 cycles the discharge capacity for the graphite was 200 to 220 mAh/g and for the graphene 310 to 330 mAh/g. The testing processes included charging to 3V at 500 mA/g and discharging to 0.05V at 100 mA/g. SJC said that neither the graphene nor graphite was enhanced so the variations in the results have to be additionally tested.
Researchers from the Daegu Gyeongbuk Institute of Science & Technology in Korea have used graphene to develop neural probes that are small, flexible and read brain signals clearly.
The probe consists of an electrode, which records the brain signal. The signal travels down an interconnection line to a connector, which transfers the signal to machines measuring and analyzing the signals. The electrode starts with a thin gold base. Attached to the base are tiny zinc oxide nanowires, which are coated in a thin layer of gold, and then a layer of conducting polymer called PEDOT. These combined materials increase the probe's effective surface area, conducting properties, and strength of the electrode, while still maintaining flexibility and compatibility with soft tissue.
Theme inspired by Danetsoft