Case study: WMG, University of Warwick

Case study: WMG, University of Warwick
Dry Room for Lithium Battery Testing
Complete supply and installation of a
Dry Room:
• Consistent and accurate conditions
• Turn key supply of complete dry room
• Achieves an ultra low dewpoint of
• Cutting edge design
• MDU2000 desiccant dehumidifier
• User friendly precise monitoring and
• Energy Efficient
Cutting Edge Dry Room for Lithium Battery Testing & Training
WMG's Energy Innovation Centre
comprises a battery characterisation lab
plus an electric / hybrid drives test facility.
The Centre includes a cutting edge £13m
Battery Materials Scale-Up Pilot Line.
This provides a one-stop-shop for the
development of new battery chemistries
and detailed industrial evaluation for target
applications such as, automotive, power
grids and consumer electronic products.
Munters specialist air treatment team,
designed, supplied and installed the
energy efficent Dry Room with Munters
high efficiency MDU system with innovative
heat recovery design at the heart of the
A constant -45°C dewpoint provides a
stable environment, which is critical for
keeping the electrolytes as dry as possible
while producing and testing lithium pouch
cells. Any moisture ingress at electrolyte
filling can be detrimental to battery
Paul Blackmore knew he needed to find
a supplier to fit the demanding needs of
a low dewpoint desiccant wheel system
with a proven track record in the battery
industry for the state of the art dry room.
Close up
supply wall
"I selected Munters due to their historical
experience in providing low dewpoint
solutions within battery applications.
Munters partnership approach delivered
us a product that not only came within
budget but also within a short time frame.
The team coped well with the added
difficulty of working within a confined
space" says Paul
Close up
extract wall
The 9m x 5m Dry Room is just one part of
the Pilot Line, accommodating up to 6
personnel, with a relative humidity of less
than 1% and a continuous dewpoint of
The Dry Room contains all the pouch cell
making equipment where moisture
sensitivity on cell materials becomes an
issue after drying of electrodes such as:
Electrode Drying and Cropping
Stacking into cell stack
Insertion into pouch
Electrolyte filling
Conditions are maintained using Munters
MDU system located next to the dry room,
from here all moisture levels are monitored
using an integrated Siemens control system.
Munters MDU2000 with a built in high
efficiency energy recovery design has
a desiccant wheel at the heart of the air
treatment system.
Munters specialist heat recovery coil
design reclaims around 100KW of heat
whilst the unit is running, channelling this to
post heating of the dry room, removing the
need for a similar sized electric heater.
Inside the Dry Room staff enter and exit
through an airlock. Once inside the air
flow is maintained via laminar flow of
25,000m³/h, moving from a supply wall at
one end of the room to an extract wall at
the other end.
Paul Blackmore, WMG Project Manager,
"I want to know what moisture my
products see at any point of production
so, I always put the control sensors in the
return air side as I know it's the worst case
Munters team is dedicated to the
improvement of low dewpoint solutions
in the Lithium Battery manufacturing
and research industry. Their continuous
development of desiccant wheel (rotor)
materials and in-house air circulation tools
provide the lowest energy consumption
whilst meeting the highest requirements of
battery manufacture.
The Energy Innovation Centre will be the
training ground for the next generation
of battery chemists and one of Europe's
leading centres of Lithium Battery Testing.
Energy Innovation Centre:
For more information on this and Munters'
other low dewpoint applications visit:
With a single supplier for all the
components of the drying chamber, WMG
could realise construction in a very short
time. Munters took over all details such
as, cabling, lighting, flooring, windows
and connections, completing the entire
installation within a demanding time frame.
MDU installation room
Munters also incorporated energy efficient
LED ceiling lights and a Static Dissipate
flooring into the design for added energy
efficiency and practical static control.
Extensive service and maintenance options
are available for peace of mind.
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USA Phone +1 978 241 1100, Vietnam Phone +84 8 8256 838,
Typical example of lithium pouch
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