Energy storage - Page 10

Researchers at India's Institute of Nano Science and Technology (INST) have developed a new route for the scalable preparation of large area few-layer graphene from waste biomass (nutshells) for high-performance energy storage devices.

The team's objective of using biomass-waste is not only to solve the problem of waste recycling but also to generate value-added materials like conductive graphene for renewable energy storage devices such as supercapacitors. The Peanut shell-derived graphene is said to possess remarkably high specific surface area (2070 m2 g−1) and excellent specific capacitance. This method is reportedly scalable, renewable and cost-effective.

U.S-based Urbix Resources has unveiled new high-density, low leakage graphene-based supercapacitors. According to Urbix, these supercapacitors have energy density of >75 wH/L with volumetric discharge energy density that is five times larger than average, with the lowest leakage rate in market (days) and operational temperatures that go from -40° C to 70°C.

The supercapacitors can be customized to meet customer specifications, and can be included in other proprietary Urbix Energy Storage Systems upon request. According to Urbix, the products come in 3 form factors: 2032 (with capacitance of 2.5F), 2430 (4F capacitance) and custom (with custom capacitance).

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 October 2017.

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!

Researchers from Rice University have transformed wood into an electrical conductor by turning its surface into graphene. The team used its LIG technique to blacken a thin film pattern onto a block of pine.

Previous work with LIG included heating the surface of a sheet of polyimide, an inexpensive plastic, with a laser. Rather than a flat sheet of hexagonal carbon atoms, LIG is a foam of graphene sheets with one edge attached to the underlying surface and chemically active edges exposed to the air.

Researchers from Tsinghua University in China have designed a low-cost energy storage device using a TiO2-assisted UV reduction of sandwiched graphene components. The sandwich structure consists of two active layers of reduced graphene oxide hybridized with TiO2, with a graphene oxide separator (rGO-TiO2/rGO/rGO-TiO2). In the device, the separator layer also acts as a reservoir for the electrolyte, which affects ion diffusion—a known problem for layered membrane devices—and affects both the capacity and rate performance.

The team explained that a step-by-step vacuum filtration process is used to form the membrane structure, and the amount of graphene oxide used in the filtration solutions can be adjusted to precisely tune the thickness of each layer. Irradiation of the dried membrane with UV light then reduces the graphene oxide to rGO with assistance from the TiO2.

Researchers at the India Institute of Technology, Kharagpur, have developed a new graphene, silver and pyyrole nanocomposite material suitable for making supercapacitors.

The nanomaterial was made of a graphene sheet onto which silver nanoparticles, each about 15-20 nanometers wide, had been embedded uniformly. The material was shown to have a high specific capacitance of 472 farad per gram at a current density of 0.5 amperes per gram. It could retain 95% of its capacitance after 1,000 consecutive charge-discharge cycles.

Today we published a new version 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 July 2017.

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!

Researchers at Swinburne University are progressing towards producing commercially viable, chemical-free, long-lasting, safe energy devices. The team is developing the Bolt Electricity Storage Technology (BEST) a graphene oxide-based supercapacitor offering high performance and low-cost energy storage.

The team explains that this technology is environmentally friendly, and a patent was recently filed on it. It is reportedly on the brink of becoming a commercial prototype. Also stated was that investment in the technology's development will soon be under way through Graphene Solutions, a joint venture between graphite miner First Graphite Resources (FGR) and Australia-based electronics company Kremford.

An international team of researchers, led by the University of Bern and the National Physical Laboratory (NPL) and assisted by the University of the Basque Country (UPV/EHU, Spain) and Chuo University (Japan), has demonstrated a new way to control the functionality of next-gen molecular electronic devices using graphene. The results could be used to develop smaller, higher-performance devices for use in a applications like sensors, flexible electronics, energy conversion and storage, and more.

The team demonstrated the stability of multi-layer graphene-based molecular electronic devices down to the single molecule limit. The findings represent a major step change in the development of graphene-based molecular electronics, with the reproducible properties of covalent contacts between molecules and graphene (even at room temperature) reportedly overcoming the limitations of current state-of-the-art technologies based on coinage metals.

Graphene 3D Lab and AzTrong have announced the signing of a Memorandum of Understanding (MoU) which outlines the terms of the agreement to be executed in the near future. This collaboration will aim to achieve cost effective production of performance-improving graphene-based products with focus on energy storage, construction, automotive and defense sectors.

Subject to the final agreement, Graphene 3D Lab will continue to develop formulations for graphene-related products while conducting tests and quality control measurements. G3L will also contribute its extensive knowledge in marketing for the graphene related products, while AzT will perform the large-scale manufacturing of the products. The products will be distributed by both companies including the e-commerce web stores, Graphene Supermarket, BlackMagic3D and G6-Epoxy, operated by Graphene 3D.