Developments in the Powering of Autonomous Sensors in Smart Vehicles

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2 Developments in the Powering of Autonomous Sensors in Smart Vehicles Tom Foley, Senior Scientist 28 th November /12/2017 Page 2

3 Introduction to Ilika Ilika s unique ability to rapidly discover new materials for the energy and electronics sectors Innovation in Solid State Batteries used in many applications Medical Internet of Things Harsh Environments 05/12/2017 Medical Battery Conference Nov 17 Page 3

4 Automotive Sensor Technology Trend Smart Transportation Market Solutions worth $139 Billion by 2020 * Average modern car has sensors** Need for smaller, invisible devices Need for sensors without heavy cabling Cabling is 3 rd heaviest component (behind chassis & engine), averaging 100kg ** 05/12/2017 Page 4 * - Markets and Markets 2016 ** -

5 Sensors in Automotive Rain Sensors Beacon Key Fobs Battery Pack Temperature Exhaust sensors Pre-collision detection TPMS 05/12/2017 Page 5

6 Key Battery Requirements In many use cases, incumbent technology (conventional batteries, cabling, capacitors) are not practical or possible Must be safe no thermal runaway, no flame Industrial Temp Range - 45 C to +85 C +100 C temperature operation is very desirable Small footprint and thin profile for integration Life of Product Performance never change battery Extremely low self-discharge Impervious to vibration and magnetic fields In these cases, Solid State Batteries may be the only solution 05/12/2017 Page 6

7 Perpetual Beacon Efficient energy harvesters Ultra low power electronics, e.g. ARM Cortex Source: CEA-Leti Source: Note 1 Micro-Batteries enable true Leave for Life Solid State Battery Source: Note 2 05/12/2017 Page 7 Note 1: Internet of Things Converging Technologies for Smart Environments and Integrated Ecosystems, Vermesan and Friess Ed., River Publishers Note 2: Renesas - Energy Harvesting for Low-Power Sensor Systems White Paper, February 2015

8 Demonstrator Perpetual Beacons with temperature, moisture, light level, position sensors powered by Ilika s StereaxTM Solid State Battery and PV panel Component Model Comment Battery Stereax M µah solid state battery PV panel IXYS SLMD mm x 22 mm Battery Management Texas Instruments Bluetooth LE 05/12/2017 RIGADO BMD-300 BQ25504 Nordic nrf52832 SoC with ARM Cortex M4F CPU Page 8

9 Energy Storage Options Trickle-charging/ Low Leakage 5,000 cycles+ Conventional Li-ion Supercapacitors Solid State Batteries Ultra-compact Safety Profile Capacity Power Density Biocompatible 05/12/2017 Page 9

10 Stereax TM Advantages for Automotive Devices 1. Ultra-thin profile 2. Form factor choice 3. High energy density 4. Low self discharge 5. Stereax patent-pending stacking adds capacity 1 cm 6. Ability to withstand high temperatures (to 150 C) 7. May be combined with supercap for very low temperatures 05/12/2017 Page 10

11 Stereax TM M250: Superior micro-battery for IoT applications Parameter Capacity Operational voltage range Operational temperature range Value 250 µah V Continuous current 250 µa -20 C to +100 C Parameter Value Peak current 5 ma Dimensions 12 mm x 12 mm (Note 1) Battery Thickness 10 µm (Note 2) + encapsulation Cycle life (10% DoD) 5,000 cycles (to 80% of initial capacity) High rate capability 80% charge achieved in 8 min Appropriate for Bluetooth LE transmission 05/12/2017 Note 1: Active footprint Page 11 Note 2: Battery deposited on substrate (currently 650 µm); Thinner substrates in testing (200 µm); encapsulation 60 µm

12 Stereax TM P180: Extended temperature range solid state battery Operate between -40 C and +150 C 1 cm Parameter Values at +150 C Capacity 180 µah Operational voltage Range V Continuous Current 1.8 ma Peak Current 3.6 ma Dimensions 10 mm x 10 mm (Note 1) Battery Thickness Cycle Life (5% DoD, to 80% of initial capacity) Internal Resistance ~1 mm 4000 cycles 15 Ω +150 C 05/12/2017 Page 12 Note 1: Active footprint

13 Stereax Road Map 05/12/2017 Page 13

14 Market needs for battery technologies 05/12/2017 Page 14

15 Call to Action Ilika is looking to cooperate with: System and component suppliers Manufacturers To enable volume production for Stereax solid state batteries 05/12/2017 Page 15

16 Keep in Touch! /ilika-plc 05/12/2017 Page 16