Korean team develops re-attachable sticker-type micro-supercapacitors with graphene electrodes

A joint research team from Korea Institute of Energy Research (KIER), KAIST, Pusan National University (PNU) and NTU has developed a high-performance re-attachable sticker-type energy storage device. The team developed 're-attachable micro-supercapacitors (MSCs) using highly swollen laser-induced-graphene electrodes.

MSCs are thin-film based ultra-thin supercapacitors that are getting much attention as they are more stable with higher power and energy densities compared to Li thin-film batteries.

Graphene-Info updates all its graphene market report

Today we published new versions of all our graphene market reports. Graphene-Info provides comprehensive niche graphene market reports, and our reports cover everything you need to know about these niche markets. The reports are now updated to April 2020.

Graphene batteries market report 3D cover

The Graphene Batteries Market Report:

  • The advantages using graphene batteries
  • The different ways graphene can be used in batteries
  • Various types of graphene materials
  • What's on the market today
  • Detailed specifications of some graphene-enhanced anode material
  • Personal contact details into most graphene developers

The report package provides a good introduction to the graphene battery - present and future. It includes a list of all graphene companies involved with batteries and gives detailed specifications of some graphene-enhanced anode materials and contact details into most graphene developers. Read more here!

Significant Market Opportunities for Graphene in Energy Storage

This is a sponsored post by Dr. Alex Holland, IDTechEx

Graphene has been heralded as a wonder material for years, with many believing a tipping point is rapidly approaching. It undoubtedly has the potential for use in numerous applications with one of the most notable being the energy storage market. Li-ion demand for plug-in electric cars alone is forecast to be nearly 350 GWh by 2025. IDTechEx forecasts that over 30% of the graphene market will be used in energy storage applications within the next decade with multiple high-profile use cases; see IDTechEx’s reports “Li-ion Batteries 2020-2030”, and “Graphene, 2D Materials and Carbon Nanotubes 2019-2029” for more details.

Graphene market forecast (2020-2029, energy storage vs other applications, IDTechEx)
One of the most significant technological developments in energy storage regards the use of silicon dominant anodes in Li-ion batteries. The theoretical capacity of silicon is around 10x that of graphite and has therefore been the topic of intense activity in the Li-ion market - Over $500 million has been invested in silicon anode start-ups alone since 2015. However, the material is plagued by one major issue: when lithiated, it can expand in volume by 300%. This causes various issues around loss of electrical connection between electrode particles and decomposition of the electrolyte, which ultimately leads to poor cycle life.

Graphene Flagship partners produce environmentally-friendly graphene inks

Graphene Flagship partners Trinity College Dublin, Ireland, CIC EnergiGUNE and INCAR-CSIC, Spain, have produced rechargeable batteries and energy storage devices made of a non-toxic and environmentally friendly graphene-based material.

High performance Na-O2 batteries and printed microsupercapacitors based on water-processable graphene image

With current metal-ion batteries reaching their theoretical limitations in terms of cycle life, capacity and power, researchers focused on metal-air alternatives, such as sodium-air (Na-O2) batteries.

Tuning the interlayer spacing of graphene laminate films yields extremely efficient supercapacitors

Scientists from University College London and the Chinese Academy of Sciences have proposed a graphene-based design for supercapacitors, which reportedly increased their density by 10 times.

Supercapacitors charge quickly but also discharge at a high speed. Existing supercapacitors tend to have a low energy density – about 1/20 of the battery capacity. Batteries combined with supercapacitors are already in limited use – for example, in Chinese public transport. But the bus in which such a battery is installed is forced to charge at almost every stop.