Document 93vkopV7LwD7pz0bYmOJZ4Gk5
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PFAS alternatives for
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batteries
EUWorkshop inBrussels
30. January 2024.
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I Leclanch at a Glance
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AMLectarAChE
Leclanchisa vertically integrated manufacturoefr energystoragesolutionfor heavy mobi&leinetrgyy
Swiss Qua&lGiertmayn Manufacturing
= 114yofeexaistrensce
22% 350 people, includ5i0+nign R&D
[Europeanmanufacturer HQ inSwitzerland, "production inGer&mSwiatzenrlaynd Provensustainable technology
Over 160 patents covering key IP
7% Verylow environmental impact
Existing track records. | 170 customers includingbluechip customers
ALSTOM EP oncan DIMEN 7scndines , &
EET
Why are PFAS used in the batteries ?
Battery cell composition
fo
Sor ] " ~Gutols Seman
PFAS are mainly used as binders
for the coating of positive
electrode, since they resist to
heat, oil, .._._. and grease
..
+Already waterbased and PFAS free
Water based electrode manufacturing without toxic
solvents since 2011
2010-2013 : De-Lion German funded project (7.5M) to demonstrate the ability to replace toxic organic solvent NMP by water at large scale. Project partners: ZSW (Ulm) and Clariant (Miinchen).
2013 gl Patent US2013/0034651 A1
2023 @l Patent WO2023/166174 A1
2013
EPFL (C75H 0kW)/ 5:00 kWh
2016
Graciosa (PT):7.4 MW/ 3.2 MWh
2019
Eferry (DK):3.2 MWh
4
Leclanch water based binder-process
Standardbatterycell Production
using toxic NMP solvent & PFAS
Leclanch battery NMP & Peas gg
cell Production
FREE
Organic solvent-based Process
Water-based Process
2A setety Toker employees
A srexprtecion neces
9 Saferworking environment for
employees.
Qo cwlosic enironment
&% Sot solventrecovery system [rennet nang
Qo sotentreccinw g ton matcnoeeincnig
+ Humiditycontrolspacefor most of the
reductrioinoninmmi um sonctointlezpacais
Comparison with and without PFAS
Performance of PFAS free cell
is similar or better to PFAS-
based cell
Energy Efficiency is improved
|
*
=
5 | PFAS Free Water-based electrode
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Cell usingPUDFbinder
LL ed GING at AS E22
projewtb s dpm So
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Impact on existing and future Gigafactories
Existing equipment can be used with Water-based PFAS free chemistry
Existing Gigafactories: OPEX is reduced by:
+ Reducing heating temperature by 50-60C
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+ Working in standard environment instead of humidity controlled
+ No need of expensive PFAS
im -l
New Gigafactories: CAPEX is reduced by:
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+ Removing NMP recovery equipment
+ Removing ATEX protection
"Reducing dry room size
cory systiion
Health and safety of workers is improved since they are not in contact with
PFAS or NMP
Synthesis and next steps
PFAS-free battery using water based
@ Remove toxic solvent and associated emission
D Reduce CO2 footprint for battery production in Europe
z= Protect investment in existing equipment -- no change needed
Next steps for Leclanch
License the technology to assist the battery industry in shifting towards
# more environmentally friendly batteries
|= Find investor to scale up production
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Leclanch
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PFAS free alternative available for Li-ion (wet-process)
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NMC chemistry + Anodealrweataerbdasyed
+ CathodeusingPFAS in
general, technology exists
to move to PFAS free
LFPchemistry + PFAS freealternative
alreadyavailable
Availability of water-based binder suppliers
Water based binders for Leclanch cathodes are coming from large and
well-known material suppliers manufacturing binders for water-based
process for Li-ion electrodes for several years and available in Europe.
There are multiple suppliers for each type of binder, making availability
and scaling not a problem.
LL
Leclanch