Powering Next-Gen Batteries with Porous Silicon Technology More Energy. Same Footprint. Silicon–Carbon Anodes, Made in India
Explore ProductsPoroSil™ at a glance
Proven science, engineered for commercial lithium‑ion cells.
01
Specific Capacity
Reported for the PoroSil™ Si–C composite
02
Energy Uplift
Cell-level potential over graphite anodes
03
Patents
2 granted · 3 applications filed
04
Years of R&D
Materials research at IIT Bhubaneswar
About Cellark
Materials science. Built for industry.
Cellark Powertech Pvt. Ltd. is an advanced battery-materials company rooted in a decade of research at IIT Bhubaneswar. Founded in 2018, our team is turning porous-silicon science into scalable PoroSil™ silicon–carbon anode products for real-world lithium-ion cells.
- Incubated at IIT Bhubaneswar Research ParkOdisha
- Lab-to-pilot scale Si–C anode productionMade in India
- 50+ years of combined team expertiseR&D · Manufacturing
Product Portfolio
Anode materials forevery cell roadmap.
From our flagship porous-silicon anode to ready-to-blend composites, Cellark’s silicon materials help cell makers raise energy density while staying compatible with existing electrode lines.
View all productsPoroSil™
Porous silicon–carbon anode powder with built-in space for expansion — high capacity, long cycle life.
Silicon–Carbon Composites
Carbon-coated silicon composites that keep electrical contact stable for higher-energy lithium-ion cells.
Graphite–Silicon Composites
Silicon blended with graphite for an instant capacity boost on conventional slurry and electrode processes.
Why PoroSil™
Silicon stores more.PoroSil™ keeps it stable.
Silicon holds far more lithium than graphite — but it swells as it charges, cracking particles and breaking electrical contact. PoroSil™ is engineered to solve exactly that.
01 · STRUCTURE
Controlled Expansion
Porous, micron-scale silicon gives each particle internal room to swell during charging — so it doesn’t crack, and capacity holds over many cycles.
02 · CONDUCTIVITY
Reliable Conductivity
A carbon-coated composite network keeps electrical pathways connected between particles — charge after charge, cycle after cycle.
03 · INTEGRATION
Drop-in Integration
Blends with graphite through conventional electrode-slurry workflows — so cell makers can raise energy density without changing their production line.
Inside Cellark
See the sciencein action.
From porous-silicon research to pilot-scale production — watch how Cellark is building India’s advanced battery-materials supply chain.
Meet Cellark — Building India’s Silicon Anode Future
Our story, our team and our pilot plant: how Cellark is taking porous-silicon science from the lab at IIT Bhubaneswar to real-world lithium-ion cells.
What Cellark Does & How It’s Impacting E-Mobility
Learn what exactly Cellark is doing and how it is impacting India’s e-mobility ecosystem.
Applications
Powering morewith less.
Higher-capacity silicon anodes unlock real gains wherever battery size, weight and runtime define performance.
Explore ApplicationsEVs & E-Mobility
More driving range from the same battery pack — lighter, longer-lasting electric vehicles.
Drones & Space
Longer flight time where every gram matters.
Consumer Electronics
More energy inside slimmer devices.
Energy Storage
Denser storage for grid, solar and backup systems.
Data Centers & Robotics
Compact backup power and longer robot runtime.
Defense
Lightweight, high-energy power for mission-critical and field systems — built in India.
Trusted & Supported By
Backed by India’s leadinginstitutions & industry.
From national research labs and government ministries to industry leaders and incubators — partners who believe in building India’s silicon-anode future.
Founder’s Message
Ashwani Kumar Pandey
Co-Founder & CEO, Cellark Powertech Pvt. Ltd.
Mechanical engineer with a master’s in materials engineering from IIT Bhubaneswar, bringing seven years of energy-sector experience and a deep understanding of India’s clean-energy ecosystem.
Patents & Recognition
Protected innovation.Proven science.
Cellark’s porous-silicon technology is backed by a growing intellectual-property portfolio — and PoroSil™ is a registered trademark of Cellark Powertech Pvt. Ltd.
Patent Portfolio
Registered Trademark