Which is better, graphene battery or lithium-ion battery? The difference between graphene batteries and lithium batteries. Posted by benzoenergy.com
Battery technology is the biggest threshold for the vigorous promotion and development of electric vehicles, and the battery industry is at a stage where the development of lead-acid batteries and traditional lithium batteries is at a bottleneck. The battery industry and even the electric vehicle industry have brought new changes. So which is better, graphene battery or lithium-ion battery? What is the difference between graphene batteries and lithium batteries?
1. Which is better, graphene battery or lithium battery
Graphene
battery is a honeycomb flat film formed by sp2 hybridization of carbon
atoms. It is a quasi-two-dimensional material with a thickness of only
one atomic layer, so it is also called single atomic layer graphite. A
new energy battery is developed by utilizing the characteristics of
rapid and massive shuttle motion of lithium ions between the graphene
surface and electrodes. Due to the characteristics of high conductivity,
high strength, and ultra-thinness, the advantages of graphene in the
aerospace field are also extremely prominent.
Graphene
is known as the "king of new materials" by researchers and major media.
It is a new type of nanomaterial known to mankind with high strength,
good toughness, light weight, high light transmittance and good
electrical conductivity.
Lithium-ion battery: Lithium ion in lithium-ion battery
refers to the energy storage material in the battery, and the battery
reaction (chemical change) occurs during the charging and discharging
process. It is a kind of battery that uses lithium metal or lithium
alloy as negative electrode material and uses non-aqueous electrolyte
solution. Lithium-ion batteries can be roughly divided into two
categories: lithium metal batteries and lithium-ion batteries.
Lithium-ion batteries do not contain lithium in the metallic state and
are rechargeable. The fifth generation of rechargeable batteries,
lithium metal batteries, was born in 1996, and its safety, specific
capacity, self-discharge rate and performance-price ratio are better
than lithium-ion batteries.
2. The difference between graphene batteries and lithium batteries
1)
Different power storage: the specific energy value of a lithium battery
(whichever is the most advanced) is 180wh/kg, while the specific energy
of a graphene battery exceeds 600wh/kg.
2) Different service life: The service life of graphene is twice that of lithium batteries, and it is also more durable than lithium batteries at high temperatures.
3) Industrial mass production: Graphene batteries have not yet been industrialized in mass production.
The
biggest disadvantage of lithium batteries is their poor safety.
Although the probability of explosion is low, as long as there is a
possibility of explosion, it is very dangerous. However, it is lighter
in weight and smaller in size, so it is lighter and more durable than
lead-acid batteries. It can be used for 3-5 years, and the number of
charge and discharge can reach 2000 times.
Due
to its unique properties, graphene has been called a "wonder material"
and scientists have even predicted that it will "revolutionize the 21st
century". Professor Colin Bailey, Vice-Chancellor of the University of
Manchester, said: "Graphene has the potential to revolutionise a huge
variety of applications, from smartphones and ultra-fast broadband to
drug delivery and computer chips."
Graphene
batteries, its technology is not mature enough, and the quality is
uneven, but the advantages are good power storage, light weight, and
high durability.
BENZO Energy Technology Co.,Ltd
UFine Technology Co., Ltd
Site: www.bz-battery.com / www.benzoenergy.com
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