Naoyoshi Kachi

Engineer
Location: Kyoto, Japan
Contact:

Career

2004: B.A. in Engineering, Kyoto University (Japan)
2006: M.S. in Mechanical Engineering, Graduate School of Engineering, Kyoto University (Japan)
2010: Ph.D. in Engineering, Graduate School of Engineering, Kyoto University (Japan)
2010-2012: R&D Manager in CONNEXX SYSTEMS LLC (California, USA)
2012-present: R&D Manager in CONNEXX SYSTEMS Corporation (Kyoto, Japan)

Summary of Skills

Project management and engineering expertise on battery material, cell, pack and system
- Silicon-based anode active material
- High power Li-ion battery
- Hybrid battery
--- Li-ion battery + Lead-acid battery,
--- High-power Li-ion battery + High-Energy Li-ion battery
Patent writing
Professional writing

Professional Highlights

Development of silicon-based high capacity anode active material for Li-ion secondary battery:
- Investigated fundamental core-shell material structure and production process
- Granted by Ministry of Economy, Trade and Economy, Japan (FY2014-2016: Strategic Core Technology Advancement Program (Supporting Industry Program), 100M JPY)

Development of 12V battery for advanced Start-Stop system:
- Project Manager and Engineer
- Conducted fundamental research of Hybrid battery concept: high-power Li-ion battery + Lead-acid battery (BIND Battery)
- Designed prototype and demonstrated its superior regeneration capability (200% of conventional lead acid battery) and cycle life (600% of conventional lead acid battery)
- Granted by NEDO, Japan (FY2014-2017, 260M JPY) and METI, Japan (FY2015-2017, 60M JPY)

Development of High Power Li-ion battery pack for industry use
- Project Manager and Engineer
- Conducted mechanical and thermal design of battery pack for rapid charge requirement

Development of EV truck battery
- Project Manager and Engineer
- Proposing hybrid battery cocept of High-power Li-ion battery + High-energy Li-ion battery
- Research on proving hybrid battery concept, mechanical/thermal design and batter system design

Research on regenerative energy storage for traction power supply system
- Project Manager and Engineer
- Contract research from domestic railway company
- Proposed hybrid battery concept (Li-ion batter + Lead acid battery) for low-cost and robust system

Patents(Resistered as inventor)

[Format]
- Patent No.(Country), 5227483(JP), Title of Invention, Application/Priority date (YYYY/MM/DD).

- 5227483(JP), リチウム二次電池用複合活物質およびその製造方法, 2011/08/22.
- ZL201280050828.7(CN), Composite active material for lithium secondary batteries and method for producing same, 2012/08/22.
- I596826(TW), Composite active material for lithium secondary batteries and method for producing same, 2013/02/21.
- 5210450(JP), 燃料電池および燃料電池システム, 2012/11/07.
- 5373999(JP), ハイブリッド蓄電池、これを用いた走行車輌及び電力貯蔵設備、走行車輌を用いたスマートグリッド走行車輌システム、並びに電力貯蔵設備を用いた電力供給ネットワークシステム, 2011/10/11.
- 2768071(EP), HYBRID STORAGE CELL, VEHICLE AND POWER STORAGE UNIT EMPLOYING SAME, SMART GRID VEHICLE SYSTEM EMPLOYING VEHICLE, AND POWER SUPPLY NETWORK SYSTEM EMPLOYING POWER STORAGE UNIT, 2011/10/11.
- 9385543B2(US), HYBRID STORAGE CELL, VEHICLE AND POWER STORAGE UNIT EMPLOYING SAME, SMART GRID VEHICLE SYSTEM EMPLOYING VEHICLE, AND POWER SUPPLY NETWORK SYSTEM EMPLOYING POWER STORAGE UNIT, 2011/10/11.
- 6153733(JP), 燃料電池, 2013/01/21.

Publications

Under construction.

Oral Presentations

- 低温環境で優れた特性を発揮するバインド式蓄電システム. 的場智彦, 加藤健太郎, 可知直芳, 塚本壽. The 57th Battery Symposium in Japan(第57回電池討論会), 1C09, November 11, 2016.
- エンジンルームに設置可能なアイドルストップ用ハイブリッド蓄電池の開発. 塚本壽, 可知直芳. 2016 IEE-Japan Industry Applications Society Conference, 4-S9-4, August 2016.
- Lithium-Lithium BIND Battery: Innovative Hybrid Lithium-Ion Battery with High Energy Density and High Rate Capability. Tomohiko Matoba, Diwaker Bandanwal, Naoyoshi Kachi, Kazunari Kobayashi, Hajime Konishi, Hisashi Tsukamoto. The 31st International Electric Vehicles Symposium, A5-2, October 2018.
- 12V BIND Battery: Simple and Effective Hybrid Battery Technology for Advanced Idling Reduction System. Naoyoshi Kachi, Diwaker Bandanwal, Tomohiko Matoba, Hisashi Tsukamoto. The 31st International Electric Vehicles Symposium, A5-4, October 2018.