The lowest cost, highest performance battery separators in the world

Transcription

1 The lowest cost, highest performance battery separators in the world 1. Good electricals 2. Unprecedented safety 3. Produced at 200,000 m 2 /day/machine 4. Achieving customer conversions

2 Who we are A growth phase company with strong global partners utilizing a unique technology and a tightly targeted strategy to revolutionize industrial energy storage and delivery Founders Two former CEOs with >60 years of advanced materials experience Manufacturing R&D $2 billion global paper company with products for capacitors and lead acid batteries and capacity for >200 million m 2 /year. 30 year battery and supercap veteran 75-year old paper R&D institution Sales Sales offices in Korea, China and the Netherlands. Highly skilled team averaging 30+ years of experience.

3 Dreamweaver Technology Nanofiber on microfiber spider-web-on-tinkertoy Nanofibers form good barrier Microfibers give open structure good window Microfibers also add strength Has potential to be thinnest high temperature separator in the world

4 Voltage(V) Voltage(V) Voltage(V) 1. Good Electricals 3.2 Ah cells Production cells Li FePO cathode Drop-in separator replacement Equivalent at 1.6, 4.7 C DWI higher at 9.4 C Equivalent 25 C, 65 C cycling C Capacity(mAh) DreamWeaver DreamWeaver Standard Standard C Capacity(mAh) 9.4 C Capacity(mAh) DreamWeaver DreamWeaver Standard Standard DreamWeaver DreamWeaver Standard Standard

5 mah Cycle Data: 1000 Cycles at 25 C, 60 C C, 3.2A/5A Cycling Cycle Number DreamWeaver DreamWeaver Standard Standard

6 Voltage (V) Voltage (V) Temperature (C) 2. Unprecedented Safety Paradigm shifting performance in hot box and nail penetration tests Batteries continue to work with nail sticking through them Shutdown at aluminum, not separator Hot Box Voltage :00:00 0:28:48 0:57:36 Time (min) Nail Penetration Voltage :00:00 0:07:12 0:14:24 Time (min) Nail Penetration Temperature 0 0:00:00 0:07:12 0:14:24 Time (min) PP PE/ceramic PP Ceramic PE PP Ceramic PE Silver Gold Silver Gold Silver Gold

7 Flame Test: Saturated with Electrolyte

8 Voltage (V/V 0 ) Hot Box Tests 3.2 Ah LFP cells 180 C Hot Box Test :00 05:00 10:00 15:00 20:00 Control V/Vo Silver V/Vo Gold V/Vo LFP cells Hot box test: 170, 180, 190 C Cells removed for safety when surface temp = 175 C Gold: voltage never fluctuates +/- 1% Silver: final voltage ~98% initial voltage Control: when surface temp = C, catastrophic failure Gold, Silver: working cells after cooldown Control: Cell failure after cooldown

9 Temperature (C) 170 C Hot Box Tests 170 C Hot Box Temperature vs Time 170 C Hot Box Voltage vs Time :00:00 0:14:24 0:28:48 0:43:12 0:57:36 1:12:00 1:26:24 1:40:48 PP Ceramic Temp Silver Temp Gold Temp 1 0:00:00 0:14:24 0:28:48 0:43:12 0:57:36 1:12:00 1:26:24 1:40:48 PP Ceramic Voltage Silver Voltage Gold Voltage Polyolefin separators failed at softening point of polymer. DWI separators did not fail.

10 Voltage (V) Temperature (C) Nail Penetration Voltage Temperature :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 0:20:10 PP Voltage Ceramic PE Voltage DWI Silver Voltage DWI Gold Voltage DWI Silver & Gold maintained their voltage and functionality during the test, unlike polyolefin separators :00:00 0:02:53 0:05:46 0:08:38 0:11:31 0:14:24 0:17:17 0:20:10 PP Temp Ceramic PE Temp DWI Silver Temp DWI Gold Temp DWI Silver & Gold had slower temp increase and reached a lower maximum temperature than polyolefin separators

11 PP (Celgard 2500) Maximum cell temperature 75 C Significant shrinkage around nail Significant shrinkage far from nail Splitting character around nail Anisotropic tear characteristics Significant exposed electrode

12 PE/Ceramic (MTI) Maximum cell temperature 115 C Significant shrinkage around nail Cracking and splitting around nail Isotropic strength character Significant exposed electrode

13 Dreamweaver Silver Maximum cell temperature 63 C No shrinkage No cracking or splitting Physical damage from nail penetration Some charring around nail No visible exposed electrode

14 Dreamweaver Gold Maximum cell temperature 41 C No shrinkage No cracking or splitting Physical damage from nail penetration No charring No visible exposed electrode

15 Nail Penetration: What is happening Aluminum Cathode Separator Anode Copper Prior to test, electrodes are isolated Nail closes circuit from aluminum to copper HEAT is generated

16 Nail Penetration: What is happening Aluminum Cathode Polyolefin Anode Copper Separator Traditional Separator Heat melts and cracks separator Anode and cathode touch Electrical short persists Thermal runaway Aluminum Cathode DWI Separator Anode Copper Aluminum Aluminum shutdown breaks circuit before separator failure creates permanent closed circuit. DWI Thermally Stable Separator Separator is stable: some charring, but no shrinkage Anode and cathode remain isolated Aluminum melts or oxidizes Electrical short is broken No thermal runaway

17 3. Delivering from Full Production Full Production with Glatfelter Initial deliveries 4Q15 200,000 m 2 /day production capacity Product Launch Schedule Product Launch Date Status Titanium 30 4Q15 Production Silver 25 2Q16 Herty Production Titanium 15 2Q16 Prototypes available Silver 20 4Q16 Prototypes available Silver 16 Gold 20 2Q17 2Q17

18 4. Customer Conversions Graphene Supercaps Zap & Go Charger High voltage Very high energy density Conventional Supercaps DAE Technologies Low ESR Very high energy density pouch cells DAE supercapacitors use Dreamweaver Titanium to achieve 8.95 Wh/kg, a 50% improvement over Maxwell supercapacitors, and 0.19 mw internal resistance, a 33% reduction compared to Maxwell.

19 DWI Product Launch Strategy Product/Market Qualification Time 2016 Market Size Titanium/Supercap Product Lighthouse Cust Next Gen Prod 1 year $100 million Silver/LFP Product Lighthouse Cust Next Gen Prod 2 years $150 million Silver&Gold/Other LIB Product Lighthouse Cust 2 years $1 billion Gold/Automotive Product 5 years $500 million Penetrate first to Titanium/Supercap Use revenue from that to fund Silver/LFP Use revenue from those to fund Other LIB Use revenue from those to fund Automotive Each market can reference the others, accelerating penetration However we cannot change the test time or the competitive landscape Gold Auto Gold Other Silver Auto Silver Other Silver LFP Titanium

20 THANK YOU! Brian Morin (864)