HIGH POWER DENSITY FUEL CELLS 11 TH APRIL 2013, HANNOVER

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1 HIGH POWER DENSITY FUEL CELLS 11 TH APRIL 2013, HANNOVER

2 HIGH POWER DENSITY FUEL CELLS 11 TH APRIL 2013, HANNOVER Contents Introduction The Challenge ITM s Suite of Materials Results Snapshot Durability Update

3 CLEAN FUEL ENERGY STORAGE RENEWABLE HEAT Wind Power Clean Fuel Grid Electrolyser Energy Storage Solar Power Renewable Heat INTRODUCTION HYDROGEN ENERGY SYSTEMS

4 FCEV ROLL OUT SEVERAL COORDINATED SCHEMES COST CHALLENGES REMAIN

5 THE CHALLENGE FCEV cost reduction & roll out Significant cost reduction efforts The FC stack is large portion of cost Aggressive cost reduction planned towards 2015 & beyond Mass & volume reductions are highly desirable Increasing power density is a crucial factor 1W/cm 2 at 670mV is an industry benchmark National H 2 Mobilty Projects AUTOMOTIVE APPLICATION ROLL OUT

6 MEMBRANE CORE MATERIALS TECHNOLOGY A SUITE OF MEMBRANE MATERIALS

7 ITM S SUITE OF MEMBRANE MATERIALS A low cost, high conductivity membrane Hydrocarbon materials Cross-linked structure In-house formulation control Ease of production Acid/alkali chemistries possible Patented worldwide TECHNOLOGY MEMBRANE PLATFORM

8 MEMBRANE PLATFORM A suite of new membrane materials Ability to vary component chemicals to achieve desired properties Functional properties can be varied over a wide range High water content: high conductivity Cross linked: high resistance to dissolution Examples only: H 2 C N H 2 C N O C H 2 O CH 3 O NH S Acrylonitrile Vinyl pyrrolidinone AMPSA Allyl methacrylate CH 3 O OH H 2 C CH 3 O O CH 2 TECHNOLOGY MEMBRANE PLATFORM

9 RESULTS SNAPSHOT GROWING EVIDENCE

10 Hydrogen & Oxygen 30 psi RESULTS SNAPSHOT POWER DENSITY

11 THE FUEL CELL MEA Power density progress with air Funded project with the Carbon Trust Focus on automotive requirements Characterisation of membrane and MEA Achievement of 2.1W/cm 2 at 4.2A/cm 2 Traction RESULTS SNAPSHOT HYDROGEN AIR

12 THE FUEL CELL MEA Sensitivity relative humidity Water retained within structure due to additional hydrophilic groups In-situ MEA conductivity at 60 o C (0.5A/cm 2 ) Benchmarked against N212 ITM membranes exhibit higher conductivity RESULTS SNAPSHOT CONDUCTIVITY VS RH

13 DURABILITY INDUSTRY PROTOCOLS SCALE UP ACCELERATED TESTING

14 EX-SITU TESTS Test development Chemical stability Fenton's reagent & boil test Fenton s test does not favour hydrocarbon membranes Results now closely matching benchmark materials 0% mass loss after 24 hour boil test 80ºC, 2hours, 4ppm Fe 2+, 3wt% H 2 O 2 Boiling water 24hr RESULTS SNAPSHOT DURABILITY

15 OCV HOLD Test development Peroxide formation & catalyst degradation US DOE target <20% loss over 200hrs Look for gas crossover & catalyst surface area Specific conditions of flow, RH & temperature Industry test cell Exceeded DoE target by 3.5x Cell Voltage, V Time, Hours RESULTS SNAPSHOT DURABILITY

16 OCV HOLD H 2 crossover vs time No change in hydrogen crossover during OCV accelerated stress testing 1 ma/cm 2 compared to DoE target of <20 ma/cm 2 Top data published by US DoE Bottom ITM data H 2 Crossover / ma cm Time / hours RESULTS SNAPSHOT DURABILITY

17 OCV HOLD Test development Very small reduction in catalyst active area during OCV Establishing experimental error Extremely encouraging Test ramp up with more stations ,1 0,2 0,3 0,4 0,5 0,6 E vs H + /H 2 / V I / ma After 24 hrs After 9 days After 16 days After 23 days RESULTS SNAPSHOT DURABILITY

18 HIGH POWER DENSITY FUEL CELLS 11 TH APRIL 2013, HANNOVER Outlook A new suite of membrane materials A step change in power density with H 2 /O 2 Large cost reduction potential with H 2 /Air Further significant reduction of technical risk Partnership strategy Materials continue to deliver Stand B60 ITM POWER DESIGNS AND MANUFACTURES HYDROGEN ENERGY SYSTEMS FOR ENERGY STORAGE AND CLEAN FUEL PRODUCTION

19 HIGH POWER DENSITY FUEL CELLS 11 TH APRIL 2013, HANNOVER