Uncovering graphene (black gold) battery scam

What is the hottest graphene products in recent two years?Underwear, mask, black gold battery, especially graphene battery, which is also called black gold batteries, is very popular.There is a news that graphene lithium battery project is ready to put into production, and is not usually big capacity, but 1.5 billion - watt!Let’s talk about graphene battery controversial discussion.

1, What is graphene?

Now let's look at what is graphene.In 2004, the British game of the university of Manchester and carbon stripping out the graphene from graphite flake, the two of them therefore won the Nobel Prize in physics in 2010.Graphene, here is composed of single layer of carbon atoms honeycomb lattice two-dimensional atomic crystal, theoretical thickness of only 0.34 nm, its excellent electrical, thermal conduction, barrier property, such as material properties, so its application is a lot of people in the field of battery, is called the king of the "materials".

Academia has had a common view for graphene, namely the high cost of manufacture of graphene and technology is not perfect, if you want to achieve industrial application is still a lot of difficulties.Even now there are companies claim that there are new graphene products appeared, graphene in this kind of product also is more the role of additives, the batteries are no exception.

Solid-state ion learning team leader Huang, institute of physics, Chinese academy of sciences, says professor now add a small amount of graphene in the anode can increase the positive electron conductance ratio and improve the battery discharge characteristics, but generally add less than one percent, can't say that with a bit of grapheneLithium ion batteries becomes a graphene batteries.

What's more, the current graphene batteries were simply added some called multilayer graphene layers of graphite piece of composition.Theoretically speaking, single-layer graphene conductivity, best used for battery charging time is short, and the layer number of the more conductive the worse, the longer for the battery.There's almost no enterprise can claim to be using single-layer graphene made battery, more just using a mixture of graphene, specifically, contain a small amount of graphene composition of tiny multi-layer graphite.

Are some rigorous research institutions also dare not easily when authority papers published on graphene batteries.In the middle of December, 2015, the Chinese academy of sciences Shanghai silicate research team at the head of the science articles, points out that it developed a high-performance super capacitor electrode materials, some media praised: "the material has excellent electrochemical energy storage characteristics, can be used as a 'super battery electric vehicle, the highlight of the battery is charging 7 minutes, 35 kilometers."Then graphene battery concept is quick.

But the message is given on the official website of Shanghai silicate by: "Huang, a researcher at the Chinese academy of sciences Shanghai institute of silicate, rich and strong (powerful) led the research team with the Beijing university, researchers at the university of Pennsylvania, an ordered mesoporous synthesized (hole) in the less carbon layer of new material."And the journal science, this paper also made no mention of graphene, but carbon materials.

In academic circles, it seems, are hyped graphene cells is a false concept, rhetorics of graphene battery does not exist at present.Layout graphene has dozens of listed companies in ChinaPower battery field, however, can really get almost no mass production machine products.And is within the scope of the world, can now mass production of graphene and no battery.

Now a lot of hype the concept of its stunt significance than the practical value.Graphene material itself has high specific surface area and other properties of nano materials and current lithium ion battery industry technical system is not compatible, so the application of hope is very slim.This, the current applications of graphene in battery, the mainly is combined with silicon battery cathode inside instead of the original graphite, so they can absorb more than charged, improve the conductivity of the battery, reduce the resistance of the charge and discharge, performance improvement effect is limited.In fact, in the field of new energy battery, battery graphene so-called disruptive theory has never been in the industry recognition.Although graphene can be conductive agent, promote the fast charge lithium battery, can improve the rate performance in theory, but if the dispersion process does not reach the designated position, uneven mixing, is still hard work.

According to the current development situation, the new type flexible batteries, devices, display, catalysts, graphene could be promising.But in terms of storage battery, do not look good.

2, graphene is too expensive, even made the batteries, ordinary people also can't afford to consumption

Used in lithium batteries, graphene is mainly plays the role of, is a conductive agent, the two is likely to do embedded lithium electrode materials.In fact, these two points, are compete with traditional conductive carbon/graphite."Then the problem is coming, do you know the conductive carbon/graphite how cheap?Are sold by tons, sold by grams of graphene which day can to this price?Now lithium-ion batteries use a variety of materials, are all about a ton of tens of thousands, hundreds of things, and every day under price pressure, using graphene completely unrealistic."This is primarily a graphene is too expensive.A gram of thousands of prices, this is not a general enterprise to bear.And a couple of years ago, the price of graphene was as high as 5000 yuan per gram, far more than the price of gold.In addition, this is made out batteries, consumer also unbearable.

Recently, there is a market analysts said that at present our country graphene products and efficient battery project has formed a complete industrial chain, in fact, the current our country graphene materials are now in a critical period, from the laboratory to industrialization of the production technology is not high, the maturity of industrialization application of long path and other factors, graphene mass production has not yet been fully realized.Somebody thinks, this process is not implemented, they said our graphene battery can realize large-scale industrialized production is totally insane.

As a result, some lucid and industry insiders think, said China was born the graphene battery, too.

The page contains the contents of the machine translation.