Recently Columbia University worked out how to remove graphene from a copper substrate without damaging it. They have large sheets of graphene with a strength of 95 gigapascals. This is 90% of the strength of perfect molecular graphene and is stronger than molecular carbon nanotubes.
Ningbo Morsh Technology is launching the world’s first graphene production line with an annual capacity of 300 tons in Ningbo, Zhejiang Province, It enters production on August, 2013. This production will be widely used in the chemical industry and energy sectors; moreover, Chongqing Morsh’s production line will be widely used in the electronics industry and IT sectors, according to the company.
Chongqing Morsh Technology will build the world’s first mass production of 15-inch single-layer graphene film production line in Chongqing city. They will produce graphene-based transparent conducting film (TCFs) products, which will initially number 10 million pieces per year for the next five years.
In 2012, Vorbeck accelerated scale-up plans and expanded Vor-ink™ capacity to over 40 tons per year by adding new real estate and production equipment.
In 2013, there has been several announcements of successful manufacture of graphene on the large scale.
MesoGraf is produced by the Grafoid-Focus Graphite-Graphite Zero trinity of companies. The production process starts at Focus Graphite’s Canadian graphite mines, where high-quality graphite is extracted. The graphite is then sent to South Korea where Graphite Zero uses Grafoid’s proprietary process to manufacture pristine graphene in bulk volumes.
South Korea has pioneered a simple, but efficient and eco-friendly way to produce Edge-selectively functionalized graphene nanoplatelets (EFGnPs) by dry ball milling graphite in the presence of various gases.
XG Sciences, Inc. (XGS) has launched a new generation of anode materials for lithium-ion batteries (LIB) with four times the capacity of conventional anodes
The Columbia Process for not damaging graphene and other background
Specific strength of other materials are listed at wikipedia. Strength of materials in this chart is in megapascal. So the new large scale graphene has a strength of 95000 megapascal. This is about 25 times stronger than Kevlar.