Technology / Products

Cambrian™ Battery Technology. PJP Eye has developed this unique technology in collaboration with Kyushu University. It has been validated by public third-party testing laboratories and supported by customers around the world.

The name Cambrian™ comes from the Cambrian Period, 480 million years ago. For some reason, organisms suddenly began to have "eyes" at that time. Cambrian explosion marked the beginning of the most diverse era in Earth's history.

Amazing 15,000 Life Cycles

Cambrian™ batteries have a larger surface area than conventional carbon. As a result, it is more resistant to heat and deterioration, and third-party testing has shown that even after 15,000 repetitions of 10-minute rapid charge-discharge cycles, the battery degrades only about -40%. This is 10 times longer than that of a typical lithium-ion battery.

This means that the amount of discarded and remanufactured batteries can be reduced by 10 times. We are convinced that this fact will contribute to building a truly decarbonized society.

CambrianTM Within

Faster and Safer

Our batteries are safe, with no risk of thermal runaway or explosion. There are several reasons for this: the tight bonding of carbon and oxygen and the large surface area result in an improved battery structure that guarantees stability, electrical conductivity, and safety.

As a result it is a battery with superior performance that can be recharged 10 times faster than a lithium-ion battery.

CambrianTM Within

Our Products

Cambrian™ single carbon battery

The Cambrian™ single carbon battery uses metal oxide for the positive electrode and plant-based carbon for the negative electrode. Currently in mass production, we sell to some of the country’s biggest technology companies.

Cambrian™ dual carbon battery

The Cambrian™ dual carbon battery, the world’s first truly eco-friendly and sustainable battery, will be brought to market in 2025. Developed in collaboration with Kyushu University, both positive and negative electrodes will use plant-based carbon.


Current applications include personal mobility vehicles such as e-bikes, golf carts and mobility scooters to drones, robotics and data centres. Energy storage uses range from small power banks, power stations and HEMS (home energy management systems) to community grids and large ESS (energy storage systems).


Designed with a much higher voltage than the single carbon battery, it will have much wider application and limitless potential as a source of energy.
Initial potential applications will include electric vehicles, electric ships, electric airplanes, flying taxis.


  • Life cycle – expected battery life of more than 30 years: SoH 60% at 15000 times
  • No risk of thermal runaway (overheating) leading to fire and explosion as can occur with Li-ion batteries
  • Mass produced and commercially ready (standard cells: 3200 mAh)
  • Rapid charging speed of around 10 times faster than conventional Li-Ion batteries: 20 minutes for an e-bike; 50 minutes for 1KW power storage
  • Recycles organic agricultural waste such as cotton and bagasse
  • Nickel, manganese and cobalt free


  • Recycles organic agricultural waste to create carbon
  • Nickel, manganese and cobalt free
  • Can be recycled for reuse at the end of its life
  • Rapid charging up to 15C (3000 mAh standard cells)
  • Targeted energy density:398 WH/KG
  • Life cycle – expected battery life of more than 20 years: SoH 86% at 8000 times
  • No risk of thermal runaway (overheating) leading to fire and explosion as is found with Lithium-ion batteries
  • Targeting mass production by 2025
  • Lithium free version available 2027

Mobility and energy storage facilities such as bicycles, golf carts, small buses, drones, robots, AGVs, etc.
We provide products in accordance with a wide variety of needs.