clean and green energy storage
TRANSCRIPT
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 1
Battery Type Open Cell Voltage(per cell)
In Volts
Battery Rechargeable?
Vanadium Redox 1.35 Yes
Lead Acid 2.10 Yes
Zinc / Air 1.65 Some types: Yes
Novel Battery 2.50 Yes
Zinc / Manganese 1.75 Some types: Yes
Nickel / Cadmium 1.50 Yes
Nickel Metal Hydride 1.50 Yes
Lithium Ion (organic electrolyte)
3.20 - 3.70 Yes
A quick comparison among various types of batteries
Novel Battery has highest open cell voltage for water based chemistry
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 2
Primary Battery NOVEL Secondary Battery
Single use Multiple use
Disposable Rechargeable
“Still” Battery “Still” Battery (Redox-) Flow Battery
Battery Classification
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 3
Battery Design
+ _
Still Battery
Redu
ctor
Oxi
dize
rReductorHalf Cell
OxidizerHalf Cell
Chemical Reaction during discharge Reductor → oxidation reaction product + e- Oxidizer + e- → reduction reaction product
MembraneSeparator
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 4
(Redox-) Flow Battery
External Tank withOxidizer
Electrolyte
ExternalTank withReductor
Electrolyte
+ _
Discharging the Battery (Reaction example)
Oxidizer Electrolyte: Cu⁺⁺ (in electrolyte) + 2 e⁻ → Cuᴼ (in electrolyte)Reductor Electrolyte: Feᴼ (in electrolyte) → Fe⁺⁺ (in electrolyte) + 2 e⁻
During charging, the arrow points to the opposite (i.e. left) side
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 5
The Novel Battery Open Cell Performance
Open Cell Voltage: 2.51 Volt
Current: 13 milliAmps cm⁻²
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 6
The Novel Test-Battery Assembly
1 cm²
Oxidizer ContainerWith
Membrane Separator
Anode
Cathode
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 7
All Chemicals and components are “In-House” developed and readily available
• Oxidator Paste• Oxidator Booster• Reductor Paste• Oxidator powder manufacturing• Reductor powder manufacturing• Hydrophobic conductive carbon paste mixing• Separator Membrane manufacturing
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 8
Novel Battery, Voltage measurement “Reductor Slurry” vs “Reductor Paste”
Reductor Paste finds application in Static Batteries, while Reductor Slurry is extremely suitable in Flow Batteries
When Reductor Slurry is in use, the Open Cell Voltage of the Novel Battery is somewhat lower, due to the additives involved in making the slurry
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 9
Novel Battery “Reductor Slurry” vs “Reductor Paste”
Reductor Paste
Reductor Slurry
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 10
Novel BatterySeparator Membrane Manufacturing
Membrane can be “Anti Static” or “Non Anti Static”
Membrane “Printed” on glass sheetsMembrane released from glass sheets
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 11
Novel BatterySeparator Membrane Manufacturing (II)
Membrane modifications:• Both Sides Hydrophylic• Both Sides Hydrophobic• One Side Hydrophylic and the other Side Hydrophobic
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 12
Novel BatterySeparator Membrane Manufacturing (IIl)
Poly Aniline, grown on a metal sheet. Poly Aniline is a Conductive Polymer
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 13
Novel BatteryOxidizer Powder Manufacturing
Electron Microscope photograph of the Oxidizer Powder show a “needle” structure
Picture below shows a “free flowing”Dark Brown to Black Oxidizer Powder
P
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 14
Novel BatteryReductor Powder Manufacturing
SEM picture of Reductor Powder show a “crystalline” structure
Reductor Powder as it is produced(Prior to Ball Milling and Sieving)
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 15
Novel BatteryHydrophobic Conductive Carbon
Coating Manufacturing
Conductive Carbon Paste coated on glass slide
Low cost conductive coating forBattery electrodes
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 16
Vanadium Redox Flow (VRFB) vs Novel Flow Battery
Vanadium Redox Flow Battery NOVEL Flow Battery
V2O5 High Cost Reductor Low Cost
V2O3 High Cost Oxidizer Low Cost
Proton Exchange Membrane
Expensive Novel Membrane Economically Justified
Voltage per cell 1.35 Volt Voltage per cell 2.50 Volt
Flow batteries are extremely suitable for energy storage from the power grid
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 17
NOVEL Battery Summary• NOVEL Battery has a waterbased
electrolyte• NOVEL Battery has a High Open Cell
Voltage• NOVEL Battery has lower manufacturing
costs than Li-Ion batteries• NOVEL Battery is suitable for both Still
Batteries and Flow Batteries• NOVEL Battery is a low cost solution for
(Power Grid-) energy storage
Ronald van ‘t Wout Hofland --- [email protected]
Introduction into a NOVEL type of battery
Slide 18
Thank you for
your attention