GrAphITe MATerIALS AnD SySTeMS Specialty …

1 Broad Base. Best Graphites for energy StorageGrAphITe MATerIALS AnD SySTeMS222 Specialty GrAphITe and Process Solutions made by SGL Group. Advanced material , equipment, and process solutions Engineered for customers from more than 35 industries Tailor-made from the most comprehensive product portfolio In-depth production and material knowledge Consistent high quality, performance, and service Attractive total cost of ownershipBroad Base. Best Production of expanded GrAphITe foilsBuSIneSS unIT GrAphITe MATerIALS AnD SySTeMSAdvanced solutions enable our customers to get Group offers advanced solutions even for challenging applications. We understand the specific requirements of our customers and combine in-depth production, material , and engineering knowledge with the most comprehensive Specialty GrAphITe portfolio.

2 This makes us the partner of choice to leading companies in many different industries. Exceptional resistance to heat and corrosion, high purity and mechanical strength are just a few of the outstanding properties which our MATerIALS offer. Specialty GrAphITe products from SGL Group achieve optimal results where other MATerIALS fail. No matter what your specific requirements might be, we will identify the best solution from the most comprehensive range of Specialty graphites. Fine grain GrAphITe : isostatic, vibration- molded, die-molded, extruded Expanded natural GrAphITe Carbon fiber-reinforced carbon (C/C) Soft and rigid GrAphITe felts Silicon carbide-coated GrAphITe materialsAdditionally we use other MATerIALS like PTFE, silicon carbide, and Specialty our portfolio and technical know-how spanning more than 35 different industries, we engineer tailor-made solutions in close partnership with our customers.

3 SGL Group covers the entire value chain of Specialty GrAphITe production, including raw material processing, semi-finished product manufacture, precision machining, purification, and coating. When it comes to engineering of equipment and process solutions our service range makes the difference: We offer mechanical and process design, production, assembly, commis-sioning, and service all from a one-stop shop. This is how we control and ensure the consistent high quality, reliability, and performance of our products and enable our customers to become more competitive. Challenge us. We are there for you worldwide. Specialty GrAphITe solutions for energy storage energy storage SySTeMS are a key component in enabling the shift towards renewables making the energy revolution a success and ensuring the mobility of the future.

4 With over 30 years of experience and an innovative product portfolio SGL Group is the preferred partner of leading companies SIGRACELL is the new brand name for our Specialty GrAphITe for energy storage . Specialty graphites made by SGL storage acid batteries (LAB)Lithium-ion batteries (LiB)Lead acid batteriesLithium-ion batteriesTypical applicationsMaterials made of carbon and graphiteProductsof the SGL GroupSIGRACELL expanded GrAphITe powdersSIGRACELL synthetic GrAphITe powdersSIGRACELL Specialty graphitesConductive additivesGraphite anode materialsCarbon composite anode materials5 With their high electrical conductivity, corrosion-resistance and material purity our Specialty graphites meet the highest standards for quality, efficiency and environmental compatibility.

5 This leads to an increase of performance and reliability of energy storage in a wide range of on our long-term experience and close development partnerships we provide tailor-made solutions to our GrAphITe SoLuTIonS For energy STorAGeHigh-temperature batteries (NaNiCl2/NaS)Next generation batteriesVanadium redox flow batteries (VRFB) Iron-chromium redox flow batteries (FeCrRFB)Next generation batteriesFlow batteriesSIGRACELL battery feltsSIGRACELL GrAphITe foilsSIGRACET carbon papersSIGRACELL battery feltsSIGRACELL bipolar platesElectrodesActive massesGas diffusion layers (GDL)ElectrodesBipolar end-platesBipolar plates6 GrAphITe powder for lithium-ion batteriesOur cutting-edge battery lab creates tailor-made material solutions for our customers and development enables us to develop and characterize new MATerIALS using particle engineering and working according to industry GrAphITe anode MATerIALS are used in lithium-ion batteries for mobile consumer appliances, electric vehicles and stationary energy storages for photovoltaic and wind.

6 In order to spur technolo-gical progress even further, we invest in new generations of GrAphITe -based anode MATerIALS and take active part in national and international over 15 years we have been working in close cooperation with Hitachi Chemical Corporation, supplying our partner with anode material for lithium-ion batteries in consumer electronics, as well as for automotive and industrial applications. SGL Group is one of the largest manufacturers of LiB anode MATerIALS and plays a major role in the advancement of LiB technology like C/Si compounds. As a member of the Lithium-Ion Battery Competence Network (KLiB) we seek to strengthen Germany's competitiveness in this key technology. That s why we are continuously working together with industrial enterprises and research institutions to improve battery cell performance, service life and safety.

7 Further we invest in new generations of carbon and GrAphITe -based battery MATerIALS for the next generation coordinated by our energy lab and Application LiB test cell production in a clean room atmospherec Electrode production at the Technology & Innovation Center for subsequent electrochemical characterizationSpeCIALTy GrAphITeS For LIThIuM-Ion BATTerIeSSpecialty graphites for lithium-ion batteriesb Anode material for lithium-ion batteries8 Partner for environmentally friendly energy storageWe have used our extensive understanding of specific customer requirements to refine our portfolio of carbon and GrAphITe result: SIGRACELL battery felts for energy storage . In Cellcube flow battery system , they contribute to the rapid supply of clean and emission-free energy .

8 They also increase safety and storage is just one example of an application-specific optimized solution from the SGL graphites for lead acid batteriesHigh-performance, versatile, provide SIGRACELL battery additives for lead acid batteries. Highly conductive carbon additives with following advantages: High purity, especially very low levels of metal impurities Excellent wettability Easy to mix into the lead paste Combination with conductive carbon blacks possibleAll these key features lead to improved Dynamic Charge Acceptance (DCA) and a high cycling stability during high rate partial state of charge. The increased performance in high current applications gives a crucial improvement for lead acid batteries. SGL Group s combination of application-oriented research, extensive knowledge of MATerIALS and expertise in process technology make it the partner of choice in carbon compo-nents for energy material development work starts with a well-founded understanding of the physical and chemical principles which determine the material s subsequent use.

9 SGL Group has its own energy laboratory with experienced specialists at its main technology and innovation research center, and works in close cooperation with leading universities and institutes. This allows us to incorporate new findings in the field of electrochemical energy storage directly into our material GrAphITeS For LeAD ACID BATTerIeSb Redox flow battery test cellin our in-house energy labMaterial data for our SIGRACELL battery additivesTypical propertiesUnitsExpanded graphiteSynthetic graphiteGFG20 HPSG2 SG4 Particle size distribution D m712D m2024D m6747 Specific surface area BETm2/g2330 4015 20 Ash content%< < < elementsCdppm< < < < < < < < < Feppm< 150< 30< 30 Mnppm< < < < < < < < < < < < More detailed parameters like test of lead affinity and water consumption results are available on request.

10 Please contact us!10 Flow batteries enable energy storage on a scale of kWh to MWh and provide the perfect solution for stationary applications. They are well-suited as temporary storage for grid stabilization, industrial back-up power, integration of renewables such as wind and photovoltaic as well as off-grid power supply for mobile radio transmitters and remote households. The main advantage of flow batteries is that they separate output (MW) and energy (MWh). The two can be adjusted independently of one another and are easily adaptable to the specific requirements at Group ranks among the leading manufacturers of Specialty graphites and GrAphITe components for redox flow have applied our long-term experience and close cooperation with customers to develop special MATerIALS and products for energy storage : SIGRACELL battery felts, bipolar plates and end-plates.