New Materials and Strategies on Future Energy Storages

Tetsuya Osaka
Waseda University
Nov. 30 14:00~14:30


In the lecture, new materials and Strategies on energy storages will be surveyed and especially on regarding material development for future lithium batteries. Lithium ion batteries (LIBs) are one of the most promising storage devices because of their high energy density and high-power output. To increase the energy density, it is important to keep the capacity balance of the cathode and anode to be equal; an improved capacity on only either electrode does not contribute to increasing the whole energy density in LIB.1 Therefore, capacities of both anode and cathode should be improved simultaneously. For the anode materials silicon anode 2-4 (theor. cap.: 4200 mAh/g) and Lithium metal and for the cathode materials sulfur cathode 5, 6 (theor. cap.: 1600 mAh/g) would be for next-generation batteries. Furthermore, the all solid LIBs are proposed with the high conductive solid electrolyte for the further target for the final safety LIB system.

Strategic target for next-generation LIB

From the application side consideration, the diagnosis technique of batteries without destructive method is also essential as well for the battery utilization in electric vehicles and renewable energy plants to guarantee the degradation check and to keep the safety. EIS is an attractive way for analyzing the battery health and it will be demonstrated with our developed techniques. 7-9

Finally, we will discuss the trend of the EV system and conditions and grid system.


Followings are our concerned some papers for your reference.


  1. T. Osaka, H. Nara, T. Momma, and T. Yokoshima, J. Mater. Chem. A, 2, 883 (2014).
  2. H. Nara, T. Yokoshima, T. Momma, and T. Osaka, Energy Environ. Sci., 5, 6500 (2012).
  3. M. Jeong, S. Ahn, T. Yokoshima, H. Nara, T. Momma, and T. Osaka, Nano Energy, 28, 51 (2016).
  4. S. Ahn, M. Jeong, T. Yokoshima, H. Nara, T. Momma, and T. Osaka, J. Electrochem. Soc., 164, A355 (2017).
  5. H. Nara, S. Tsuda, and T. Osaka, J Solid State Electrochem., 100, 1–13 (2017).
  6. Y. Wu, T. Yokoshima, H. Nara, T. Momma, and T. Osaka, J. Power Sources, 342, 537 (2017).
  7. T. Osaka, D. Mukoyama, and H. Nara, J. Electrochem. Soc., 162, A2529 (2015).
  8. T. Yokoshima, D. Mukoyama, K. Nakazawa, Y. Gima, H. Isawa, H. Nara, T. Momma, and T. Osaka, Electrochim. Acta, 180, 922 (2015).
  9. T. Yokoshima, D. Mukoyama, H. Nara, S. Maeda, K. Nakazawa, T. Momma, and T. Osaka, Electrochim. Acta,246, 800 (2017).



Tetsuya Osaka is Senior Research Professor and Emeritus Director of the Institute for Research Organization for Nano & Life Innovation, and Professor Emeritus of the Faculty of Science and Engineering, Advisor to the Office of the President, Waseda University, Tokyo, Japan. He is past President of the Electrochemical Society (ECS), also was serving as President of the Magnetics Society of Japan, President of the Electrochemical Society of Japan, President of Japan Institute of Electronic Packaging, Vice-President of the Surface Finishing Society of Japan, Vice President of the International Society of Electrochemistry (ISE).

The recent works focus on a newly “electrochemical nanotechnology”. His technical contributions have been recognized by many awards including Medal with Purple Ribbon bestowed from the Decoration Bureau of the Cabinet Office, Japan, in 2010, Prizes for Science and Technology in Development Category of the Commendation for Science and Technology by the Minister of Education, Culture, Sports, Science and Technology in 2008, and so on.

His research field is electrochemical technology, and his recent work is focused on electrochemical nanotechnology, including electro- and electroless-deposition/surface finishing, electronic packaging materials, magnetic storage and energy storage devices, and chemical- and bio-sensors. Especially, he nowadays focuses on batteries and battery energy managing system. He has contributed as an author and/or editor to more than 90 books and published more than 1000 original and review papers in these fields. He has been identified as one of the Highly Cited Researchers in the Materials Science category in Thomson ISI’s ISIHighlyCited.com (http://isihighlycited.com/).