Alex Clarke, Kevin Schrantz, Joey Macsalka EnerSys Proprietary 1 - - PowerPoint PPT Presentation

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Alex Clarke, Kevin Schrantz, Joey Macsalka EnerSys Proprietary 1 - - PowerPoint PPT Presentation

Mar 26, 2024 273 likes •511 views

Benefits of Quallions Zero-Volt Technology Quallion Medical Batteries Powering Life 1st Medical Battery Conference, D sseldorf, Nov 2017 Alex Clarke, Kevin Schrantz, Joey Macsalka EnerSys Proprietary 1 Overview 200mAh 3mAh 165mAh

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EnerSys Proprietary

Quallion Medical Batteries Powering Life 1st Medical Battery Conference, Dűsseldorf, Nov 2017 Alex Clarke, Kevin Schrantz, Joey Macsalka Benefits of Quallion’s Zero-Volt™ Technology

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EnerSys Proprietary

165mAh 200mAh 3mAh Implantable Battery may experience long periods of unattended storage at body temperature.

  • EnerSys Lithium group overview
  • Over-discharge to 0V effects and benefits of Zero-Volt™
  • Quallion Zero-Volt™ implantable cells
  • 0V data comparison; Li-ion and Zero-Volt™
  • Summary

Overview

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EnerSys Proprietary

EnerSys Overview

  • Global leader in energy storage for industrial

applications

  • Over 10,000 customers in over 100 countries
  • ~10,000 employees
  • ~$2.4 billion
  • Over 125 years experience
  • Embracing transition and significant support for Li-ion
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EnerSys Proprietary

EnerSys Lithium

  • EnerSys Lithium is incorporated in an advanced

technology group of EnerSys

  • The group has a revenue of >$125m
  • Group includes ABSL Space Products (formerly AEA

Technology)

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EnerSys Proprietary

ABSL/AEA Technology

  • ABSL with their key patents for Lithium-ion

developments helped enable the commercialisation of the technology

Original cathode patents

  • ABSL licenced

this technology to Sony allowing them to pioneer mass production during the 90s

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EnerSys Proprietary

EnerSys-ABSL’s Achievements

80s Original key Li-ion cathode patent 90s Li-ion space evaluation 2001 World’s 1st Li-on spacecraft battery launched 2003 World’s 1st Li-ion spacecraft battery reaches Mars 2004 World’s 1st Li-ion spacecraft battery in deep space 2005 World’s 1st Li-ion MEO navigation spacecraft battery 2006 World’s 1st 270V Li-ion battery is space qualified 2002 LEO PROBA mission extended for first time 2007 World’s highest energy density primary battery in orbit 2011 World’s first Li-ion for manned space activity

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EnerSys Proprietary

Battery Basics – Cycle Life

  • Typically, 1st discharge capacity is used as baseline
  • In general, discharge capacity decreases as cycle number increases

http://www.mpoweruk.com/performance.htm

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EnerSys Proprietary

Increasing current

Battery Basics – Chemistry and Rate

Cell Chemistry Discharge Rate (Current)

  • Voltage and capacity decrease

as current increases

  • Most Li-ion cells operate from

2.5V to 4.2V

  • Operation below 2.5V can lead

to performance degradation and safety risks

http://www.mpoweruk.com/performance.htm

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EnerSys Proprietary

Discharge <2.5V - Conventional Li-Ion

3 electrolyte separator (-) anode coating (+) positive coating Cu foil Al foil 1

  • Longer dwell times at 0V and repetitive discharge to 0V create issues
  • Capacity loss and possible internal shorting can occur resulting in

significant performance reduction and failure

2

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EnerSys Proprietary

Discharge <2.5V - Conventional Li-Ion

4 Cu dendrite shorting

Copper dendrites penetrating the separator causing internal shorting

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EnerSys Proprietary

electrolyte separator (-) Anode coating (+) positive coating Al foil Ti foil 1 2 3 4

Zero-Volt™ technology enables the battery to be:

  • Repeatedly discharged to

0V

  • Stored at 0V

With NO loss of performance The benefits include:

  • Excellent system storage

even with current drain

  • Reduced burden on

patient to remember to charge

  • Simple system reactivation

after non-use

Discharge to 0V in Zero-Volt™ Cell

same same

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EnerSys Proprietary

Zero-Volt™ Vs Conventional Cell

electrolyte separator (-) Anode coating (+) positive coating Al foil Ti foil 1 electrolyte separator (-) anode coating (+) positive coating Cu foil Al foil 1 4 4 Cu dendrite shorting Zero-Volt™ Cell Conventional Cell

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EnerSys Proprietary

QL0200I QL0020B QL003B

Quallion Implantable Cells

Product QL0200I QL0020B QL0003B Voltage 0V to 4.1V 0V to 4.1V 0V to 4.1V Capacity 200mAh 20mAh 3mAh Diameter

  • 2.9mm

Width 17mm 19.3mm

  • Height

35mm 4.5mm 11.8mm Thickness 5.5mm 1.2mm

  • Weight

7.5g 1.2g .2g

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EnerSys Proprietary

(+) Pt/Ir (-) Mo (+) Pt/Ir

Quallion Implantable Cells (Continued)

Product QL0200I QL0020B QL0003B Case Material Ti 6-4 Ti 6-4 Ti 6-4 Case Polarity (+) Neutral (-)

(-) Mo (+) Ti 6-4

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EnerSys Proprietary Loeb et al. Minimally invasive implantable fetal micropacemaker: mechanical testing and technical refinements Med Biol Eng Comput 1-12. 2016.

3mAh Microbattery Application

In this application, the Quallion QL003B microbattery powers an implantable fetal pacemaker

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EnerSys Proprietary

Quallion Zero-Volt™ Test Data

Zero-VoltTM technology assessment 1) Effect of Temperature 2) Effect of discharge to 0V at each cycle 3) Effect of long-term storage at 0V

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EnerSys Proprietary

Room temperature storage

40ºC storage

Conventional Li ion Cell: SONY 18650 Quallion Zero-VoltTM 18650 Quallion Zero-VoltTM 18650 Room temperature storage

40ºC storage

Discharge Curves After 3 Days 0-Volt Storage at RT and 40ºC:

Conventional Li ion Cell: SONY 18650

Before Before After After

Quallion Zero-Volt™ cells do not degrade at RT and 40°C, stored at 0V

Before/After Before/After

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EnerSys Proprietary

Repeated Discharge to 0V

Conventional Li-ion degrades rapidly after 12 discharges to 0V Zero-VoltTM cell still retains ~100% of original discharge capacity at 40 cycles

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EnerSys Proprietary

Extended Storage at 0V

  • Patient non-compliance

(Battery is at 0% SOC)

  • Patient forgets to charge the

device for an extended period of time, and the battery has no charge

  • No adverse effects after a

complete discharge (0V) for 2 years Full recovery: Original capacity is recovered even after battery was at 0V for 2 years @ 37°C

Capacity check Discharge to 0V Store at 0V, 37°C 3 months 6 months 12 months 18 months 24 months Capacity check

50Ω resistor

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EnerSys Proprietary

Discharge Curve Comparison After 24 Months Storage at 0V

  • Capacity check was performed before and after 24 months storage at 0V
  • Discharge profile after 24 months storage at 0V is identical to original
  • Zero-VoltTM cell shows original and final discharge is the same
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EnerSys Proprietary

  • Quallion Zero-VoltTM technology does not degrade at 0V, unlike

conventional Li-ion cells

  • Zero-VoltTM demonstrates robust performance during:
  • 0V storage at various temperatures
  • Cycling and repetitive deep discharge to 0V
  • Extended storage at 0V
  • Benefits:
  • Battery can be installed to device with no risk to current drain from

device causing damage while in storage and prior to use

  • Robust technology able to withstand multiple abuse conditions where

patient forgets to recharge but continues to use

  • Patient able to restart use of product after many years of inactivity

with no negative affect to battery performance

Summary

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EnerSys Proprietary

Contact Information: Joey Macsalka Sales Engineer joseph.macsalka@enersys.com Mobile: +1 303 817 5454 Office: +1 818 833 4425 Quallion Facility: 12744 San Fernando Rd Sylmar, CA 91342 Contact Information: Alex Clarke Business Development Manager alex.clarke@absl.enersys.com Mobile: +44 7968 095 641 Office: +44 1865 408 747 ABSL Facility: Culham Science Centre Oxfordshire, OX14 3ED