Aqueous Batteries with Ultimate Safety

Overview

Using water as the electrolyte, these batteries are completely safe and free from any risk of fire or explosion, even after physical damage, penetration or compression or fire exposure.

Research completion

2022

Commercialisation opportunities

Technology licensing agreement

Problem addressed

The biggest demand for batteries in the field of stationary energy storage is ultimate safety. Aqueous batteries have the characteristics of principle safety and lower cost. Through technological improvement, the current battery cycle is catching up with lithium batteries, so the use of aqueous batteries in the field of energy storage is a very promising technology.

Innovation

The current energy density of aqueous batteries can reach 200-300Wh/L, close to lithium iron phosphate based lithium ion batteries.
The maximum battery capacity can reach more than 10Ah for cylindrical and 50Ah for prismatic cells, and about 5KWh for battery modules.
N/A

Key impact

Extreme safety
Highly environmentally friendly
Low cost
Easy to disassemble and recycle, and the recycling process is pollution-free

Award

48th International Exhibition of Inventions Geneva (IEIG) - Gold Medal

Application

Two-wheeled electric vehicles
Logistics vehicles
Energy storage base stations
Energy storage in oil mines

Patent

Patent Granted: US10,957,939 IDF 574
Patent Granted: US11,177,504 IDF 557
Patent Granted: US11,075,406 IDF 602
Patent Granted: US10,872,736 IDF 623
Patent Granted: US11,329,574 IDF 619

Website

City University of Hong Kong (CityU)

As one of the fastest growing universities in the world over the past decade, City University of Hong Kong (CityU) is recognised as a hub for innovation in research and professional education. CityU identifies solutions to critical global challenges by extending the frontiers of knowledge both within and beyond existing research paradigms.

The University’s highly qualified academics are drawn from all over the world, not only bringing a wealth of research and professional experience to the teaching programmes, but also contributing to the knowledge and technology advancement.

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