
Mati Arulepp
Carbon-based ultracapacitor electrodes
Field 11 · 91 living inventors
Devices and materials for producing, storing and using energy with lower impact.
Distinguish a promising prototype from a technology already operating at scale.

Carbon-based ultracapacitor electrodes

Grid energy-storage and display technologies

Zinc-based energy-storage systems

Virus-templated lithium-ion battery electrodes

Functionalized water-decontamination membranes

Passivated emitter and rear cell (PERC) solar-cell technology

Nanostructured-membrane osmotic power generator

Solar-driven green-hydrogen reactor

Scaffold-free three-dimensional battery electrode

Fast-pyrolysis biomass-conversion platform

FLASC subsea compressed-air energy-storage system

BioLite CampStove and HomeStove thermoelectric cookstoves

High-power lithium-iron-phosphate battery materials

Implantable biofuel cell that runs on glucose

Sun-tracking floating-solar mooring system

Implantable biofuel cell that runs on glucose

Nanostructured lithium-ion battery electrodes

Long-life lithium-ion battery electrode materials and lifetime tester

soft-switching converters and grid-forming inverter controls

BioLite CampStove and HomeStove thermoelectric cookstoves

high-cycle PEDOT/graphene plastic supercapacitors

nanophotonic structures for daytime radiative cooling

FiltroVivo living air-purification biofilter

Flexible solar cells for portable devices

Turbines and fans inspired by whales

Retrofittable cargo-ship carbon-capture system

polymer membranes for water purification, gas separation, and carbon capture

Implantable biofuel cell that runs on glucose

Sun-tracking floating-solar mooring system

Implantable biofuel cell that runs on glucose

Dye-sensitized solar cell

Passivated emitter and rear cell (PERC) solar-cell technology

High-temperature-superconductor and solid-oxide-fuel-cell materials

Microwave magnetic components and ferrite-ceramic materials

Energy-efficient water purification

Graphite-and-tin thermal energy storage system

Solar solution: making solar cell production easier and cheaper

Carbon nanotubes

Energy-efficient water purification

Ammonia storage to reduce NOx

NMC electric-vehicle battery cathode and 5V smart-grid cathode material

Carbon-based ultracapacitor electrodes

Carbon-based metal-free electrocatalyst materials

electrostatic motors and capacitive power converters

Inkjet-printed flexible perovskite solar cells

Rechargeable-battery materials

Solar-driven green-hydrogen reactor

Single-step electric-arc steelmaking furnace

Lithium-ion-battery materials and technologies

Perovskite solar cell

FiltroVivo living air-purification biofilter

Distributed canal hydropower turbine system

Nanostructured-membrane osmotic power generator

Sony's first commercial lithium-ion battery

Battery, supercapacitor and semiconductor materials

Digital Z-source grid-protection converter/inverter

Air-pollution capture and biodegradable-material system

textured piezoelectric energy-harvesting materials and flexible photovoltaics

Solar-driven green-hydrogen reactor

Liquid-metal grid-storage battery

Neodymium-iron-boron permanent magnet

FLASC subsea compressed-air energy-storage system

Light-sensing and solar-energy-conversion materials

All-vanadium redox flow battery

The Ocean Cleanup Interceptor river-cleanup vessel

Metal-halide perovskite photovoltaic solar cell

Boron-based proton-exchange membrane for hydrogen electrolyzers

LuminAID inflatable solar-powered light

Three-blade, pitch-controlled wind turbine and direct-drive offshore turbine hardware

Distributed canal hydropower turbine system

LuminAID inflatable solar-powered light

Microfabricated magnetic power components and wireless-power hardware
Flexible peel-and-stick perovskite solar film

High-temperature membrane reactors for carbon capture

High-power-density solid-oxide fuel cell

PERC and PERL crystalline-silicon solar cells

Solar-powered atmospheric water-harvesting system

lithium-ion battery recycling and high-performance electrode manufacturing

Triboelectric nanogenerator self-powered sensor

fuel-cell components and electrochemical systems

Retrofittable cargo-ship carbon-capture system

Aqueous Hybrid Ion grid-storage battery

Rechargeable lithium-ion battery

Catalytic biorefinery for ethanol-to-drop-in fuels

Directed lithium-ion battery recycling process

Clean, efficient smart energy-power technologies

Electrochemical battery and fuel-cell technologies
Graphite anode for rechargeable lithium-ion batteries

Rechargeable lithium-ion battery

Directed lithium-ion battery recycling process

PERC and PERL crystalline-silicon solar cells