Graphene Supercapacitor Battery Manufacturer & Supplier

Our Core Advantages

Engineered for performance, safety, and longevity in extreme conditions.

Non-flammable Electrolyte

Advanced technology with high-temperature separator ensures safety under extreme conditions.

Ultra-long Life

Projected lifespan of up to 20 years, reducing replacement and maintenance costs.

Extreme Temperature Operation

Rechargeable at -40°C, discharge at -50°C. Maintains 80% capacity in harsh climates.

SMART BMS

Advanced Battery Management System for real-time monitoring and control of cells and system.

Fast Charging & Discharging

Up to 10C charging and 25C discharge rates for high-power applications.

Our Energy Storage Products

Innovative graphene supercapacitor batteries for every application.

Capwall

Low Voltage & High Voltage residential solar energy storage. Safe, innovative, and stackable.

Residential solar integration
Modular design
High safety rating

CAPESS

Low Voltage Commercial Use. Long lifespan and wide temperature stability.

Commercial energy storage
Stable in extreme temps
Scalable deployment

CAPRACK

High Voltage Commercial & Industrial Use. Stackable module design and high power efficiency.

Industrial-grade performance
High power efficiency
Stackable modules

CAPMEGA

Containerized Energy Storage System. Safe performance and uninterrupted large power supply.

Containerized solution
Large-scale power supply
Grid stability support

Graphene Supercapacitor Battery

Core technology using graphene for ultra-fast charge and extreme durability.

Graphene-based electrodes
10C charging capability
20-year lifespan

Solid-state Supercapacitor Battery

Next-gen solid-state design for enhanced safety and thermal stability.

Solid-state electrolyte
No leakage risk
High cycle life

Hybrid Inverter

Integrated inverter for seamless solar and battery system management.

MPPT solar charging
Grid-tie & off-grid modes
Smart energy routing

Complete Residential Solar Power Systems

All-in-one solar + storage solution for homes. Easy installation and monitoring.

Turnkey residential package
Remote monitoring
Energy independence

About GTCAP

Shanghai Green Tech (GTCAP) is a supercapacitor battery manufacturer and energy storage solutions provider based in China. Founded in 1998, we are dedicated to researching and developing new energy storage technology, breaking through energy storage barriers, and changing the future energy landscape.

We provide superior graphene energy storage solutions to the world, with a focus on safety, longevity, and performance in extreme environments.

R&D Team

Composed of PhD and Master's graduates from top universities, our team leads innovation in electrochemical energy storage.

Quality Control

Certified under ISO9001, ISO14001, and ISO45001. 100% OQC guaranteed before delivery.

Support & Resources

Access product documentation, FAQs, and technical support.

Brochures

Download product brochures and catalogs.

Data Sheets

Detailed technical specifications and performance data.

User Manuals

Installation, operation, and maintenance guides.

FAQs

Answers to common technical and support questions.

Frequently Asked Questions

What is a graphene supercapacitor battery?

It combines the high power density of supercapacitors with the energy density of batteries, using graphene to enhance conductivity and cycle life.

How long do GTCAP batteries last?

Our batteries are designed for a projected lifespan of up to 20 years under normal operating conditions.

Can they operate in cold climates?

Yes. Our batteries can be recharged at -40°C and discharged at -50°C while maintaining 80% capacity.

Are GTCAP products certified?

Yes. Most products are certified under CE, UN38.3, IEC62619, UL9540A, UL1973, and CEI0-21 standards.

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GTCAP Graphene Supercapacitor Battery