batteries — energy storage, vector control
charge which are metal ions.
the batteriesthat came
on the market
everywhere: they are the laptops,
and even electric cars.
In connection with such active use of lithium, its reserves on the planet began to dwindle, so it looks promising transition to
sodium is found in nature almost
call the electrode that gives off ions
metal in the discharge process.
the material should have a high
— that is, to accommodate
in lots of metals
a large number of recharge cycles. Modern
anodes for lithium-ion batteries
layers which can
to fit lithium.
Larger sodium more difficult to introduce between the graphite layers, so for the anode of sodium-ion batteries, scientists are looking for other materials: among them
on the basis of nanoparticles
a lot of voids, which can accommodate
extra sodium when the battery
Indian and American chemists under
the leadership of Vilas
G. Pol) from Purdue University suggested
material from crushed pet bottles. Process
simple: to a suspension of polyethylene terephthalate in ethylene glycol
an excess of sodium hydroxide
and irradiated with microwave radiation in
for two minutes.
In this case
occurs alkaline hydrolysis (saponification)
bridges consisting of polyethylene terephthalate,
and his chains break down to monomer
— ethylene glycol and terephthalate
the sediment and it remains only
full conversion of all
polyethylene terephthalate enough
power of one kilowatt, then
there are synthesis can be carried out in the standard
microwave oven. X-ray phase
IR spectroscopy and NMR spectroscopy
inferior in purity terephthalate
sodium, which are the traditional
way — out
of terephthalic acid.