Enabling Technology Project
E5 Next-Generation Smart Community
Outline of the area
As a part of reduction of GHG emission, it is promoted to create the future low carbon society where renewable energy is aggressively introduced. In this project, we aim at creating and socially implementing the science-based core technology with an eye on a disaster resilient smart community which hopes to be a low carbon and autonomous distributed energy community, for core social infrastructure such as buildings, platforms, transportation and so on.
We develop new high-efficiency solar battery revised from material level and an innovative power storage device which balances fluctuation in electricity generated by the amount of sunlight and variation in the amount of consumption by season and period of time.
In addition, by combining the high energy density battery and the high-efficiency fuel cell with high output and long-life to the developed high-efficacy solar battery, the stable supply of recyclable energy in the smart community is sought after.
Further, we also attempt to realize an advanced energy consumption saving by introducing an innovative heat insulating technology and low power consumption electric equipment.
In this project, we integrate the accumulated elemental technologies in the ALCA research so far and enhance the cooperation with the industry. In this way, we make each elemental technology closer to the practical use phase, and intend to contribute the formation of a low carbon society.
Development and Evaluation of Carbon Alloys with Electrocatalytic Activity for Cathode Reaction in Proton Exchange Membrane Fuel Cell
Professor, Gunma University
The carbon alloy catalysts which have been developed by Ozaki et al. are innovative carbon materials which are expected to be substitute for noble metal catalysts used for proton exchange membrane fuel cells. Through past ALCA research the catalyst having a performance of about 650 mW/cm2 in maximum output was developed.
In the future, the characterization of the carbon alloy catalyst and an effort for securing long-term durability will be conducted and diffusion of proton exchange membrane fuel cells will finally be promoted to contribute to the formation of a next-generation smart community.
Development of Advanced Hybrid Capacitor (AdHiCap)
Professor, Shinshu University
A novel hybrid supercapacitor (Advanced Hybrid Capacitor; AdHiCapTM), which utilizes a water based electrolyte with a solid electrolyte was developed. This new ground breaking supercapacitor affords 10 times higher energy density compared to current state-of-the-art hybrid capacitors and has superior safety. As part of the on-going R&D of the AdHiCapTM based on ALCA project, we have now improved the long-term stability of the water stable Li-based anode.
Our performance goal is 400 Wh/kg in energy density and 3 kWh/kg in power density, which should be realized through further improvement in anode performance as well as new electrolytes.
Development of a Reversible Solid Oxide Electrolysis Cell for Efficient Hydrogen Production and Power Generation in the Fuel Cell Mode
Professor, CERC, University of Yamanashi
We will develop novel high performance, durable electrodes in a solid oxide electrolysis cell for hydrogen production / power generation (solid oxide fuel cell mode), which can be applied as a reversibly operating device for a load-leveling of large-scale electric power from renewable energy such as photovoltaics or wind-power plants. We will also examine to establish a fabrication process of the cell/stacks, and clarify the subjects for constructing a practical system.
Development of Metal Hydride/Air Secondary Battery
Professor, Doshisha University
This project aims to develop a metal hydride/air secondary battery consisting of a metal hydride electrode, an alkaline solution, and a bi-functional air electrode, in which electric energy is stored with water decomposition and is generated with water production. Water is the only active mass of this battery, providing a potential of high safety even with an increase in energy density, which is quite different from other types of secondary batteries. One of the targets in this project is to achieve a high energy density over 1500 Wh/L or 500 Wh/kg which is impossible to realize with lithium ion secondary batteries.