The World's First Standalone AC (Alternating Current) Battery

Votes: 3
Views: 8209

The battery is a crucial element of our daily lives. As devices become more mobile and interconnected, demands for higher battery capacity, longer duration, and better safety grow much faster than the commercial offer introduced to the market today. Additionally, the regular Lithium-ion batteries in the market use a Direct Current (DC) system and therefore electricity needs to be converted from Alternating Current (AC), which is directly from the power grid to DC in order to be stored in the form of batteries, resulting in power losses. It is for this reason that we have developed a solution to this problem - a battery that integrates a new type of electrode, the Biode, to enable an AC system for power storage to deliver batteries that have more capacity, last longer and are safer. The Biode we introduce has both the characteristics of an Anode and a Cathode and allows our AC battery to be approximately 30% more compact and safer than regular DC batteries.

Our world’s first-ever standalone AC battery solution will be licensed to battery manufacturers/parts manufacturers worldwide. The production of our AC battery will utilize existing materials and production lines. Therefore, we can penetrate the market faster than competitors that use new industry materials or offer all-solid-state batteries.

The mobility battery market is estimated to be 21 billion USD by 2026 with a CAGR of 4.2%. Our business model is B2B, we have been raising awareness by participating in several start-up competitions and conferences in Europe, Japan, China, and the USA. We received 70% strong interests out of 60+ stakeholders we visited in Europe/Japan

We have 35 years of work experience not only in the battery/circuit industry but also in researching about particle accelerators in Tsukuba, Japan. This inter-disciplinary know-how and experiences are one of the key differentiation. We already have a prototype of our AC Biode battery at 20W. Once we raise seed funding of 600K USD, within a year, we will scale it up to 50kW with Cockcroft-Walton Multiplier optimized for mobility applications.


  • Awards

  • 2019 Automotive/Transportation Category Winner
  • 2019 Top 100 Entries


Voting is closed!


  • Name:
    Tadashi Kubo
  • Type of entry:
    Team members:
    Farazane Taraie (Ms.)
  • Profession:
    Business Owner/Manager
  • Tadashi is inspired by:
    Currently, the battery electricity source is only DC, therefore, we need to convert from AC to DC every time batteries are charged and in the case of AC motors and additional conversion is required, resulting on electricity losses of up to 35%.
    Therefore, we have been developing a solution to avoid or improve this two-time conversion. Capitalizing on the team’s 25 years of experience and 5 years of research, we have developed the first-ever standalone AC battery (patent-pending). The general public has begrudgingly accepted that the battery electricity source must be DC ever since Alessandro Volta developed a primary battery in 1800. Although it is true that it makes sense to use DC batteries for lower power devices such as lights, radios or smartphones, battery applications for Electric Vehicles (EV), drones or Electric Airplanes (EA) consume much more power within the same amount of time. Thus, DC batteries alone prove to be insufficient to provide a steady voltage or current that these devices require. In these cases, AC batteries are needed, and they are more efficient and easier to control than the conventional DC batteries.
    We applied for two patents in Japan in 2016, 100% by AC Biode, and will apply for additional two patents in Japan and at Patent Cooperation Treaty (PCT). According to the Japan Patent Office, no one has claimed against our applications since then till now, that means the two patents are going to be filed soon. Our TRL (Technical Readiness Level) is 4.
    We already have a prototype of our AC battery at 20W. We will scale it up to around 50kW within a year once we raise seed funding or receive public grants.
  • Patent status: