Graphene 3D Lab filed a provisional application for a US patent for 3D printable batteries. A 3D-printable power source is vital for many printable devices of course. These batteries are based on graphene of course and can potentially outperform current commercial batteries.

Graphene 3D Lab also says that 3D-printed graphene batteries have several advantages over traditional batteries - you can tailor the shape and size to design of the specific device you are printing. The company aims to perform live demonstrations of 3D printed batteries - but they did not say when will this take place.

Researchers from the Korean's KAIST institute developed a new process to produce graphene quantum dots that are equal in size and highly efficient in emitting light. Quantum Dots potentially can be used to develop emissive flexible displays (similar to OLED displays), and this development may enable those displays to be graphene-based.

The process involves mixing salt, water and graphite and then synthesizing a chemical compound between layers of graphite. All the resulting quantum dots were 5 nanometer in diameter, and these QDs do not contain and heavy metals (like current commercial quantum dots). The process is reportedly easy to scale and should not be expensive.

Grafoid announced that it acquired Braille Battery, a developer and manufacturer of advanced lightweight Li-Ion batteries for the automotive market. Grafoid is looking for Braille to incorporate the company's graphene MesoGraf materials in their batteries to enhance the performance of those batteries.

Grafoid actually acquired 75% of the shares in Braille (the rest is owned by the company's founder), which will remain as president and COO. Braille is focused on the Formula 1, NASCAR and IndyCar markets, but they aim to also enter the medical, military and marine sectors.

Researchers from Texas Tech University developed a new way to study the interface between graphene and an elastic substrate, using AFM microscopy. This method may make it easier to understand and eventually commercialize graphene applications in flexible electronics.

The research team at TTU created a sandwich made of CVD-grown graphene sandwiched in two polymer layers. Nano-bubble inflation was used to "blow" this "nano-sandwich". This was done under AFM, which allowed the microscope to pick up the stress/strain signals.