Mitsubishi Electric and Musashi Energy Solutions Sign Partnership and Co-Development Contract


Collaboration expected to advance carbon neutrality in the global railway industry

TOKYO – May 15, 2024 – Mitsubishi Electric Corporation and Musashi Energy Solutions Co., Ltd., a subsidiary of Musashi Seimitsu Industry Co., Ltd., announced their signing of a partnership and co-development agreement on May 14 for Innovative Energy Storage Devices to be incorporated into Innovative Energy Storage Modules, and Battery Management Systems (BMSs) that monitor and control battery usage for railway operators and rolling stock manufacturers.

Under the joint-development agreement, Mitsubishi Electric’s advanced technologies will be leveraged in Innovative Energy Storage Modules to upgrade Musashi Energy Solutions’ Innovative Energy Storage Devices with functions for vibration resistance, insulation and waterproofing to be utilized in railcars and any other vehicles. The devices are expected to achieve the long service life and high safety levels of Hybrid Supercapacitors (HSCs), as well as high output density not possible with conventional lithium-ion batteries and high-capacity density not possible with conventional HSCs. In addition, the modules are expected to provide optimal output density and capacity density to absorb high regenerative power generated during railcar braking and output running power.

The Innovative Energy Storage Module will enable power storage for hydrogen fuel cell hybrid trains, diesel hybrid trains, overhead catenary-less trains, substation peak shaving, brake resistor replacement, etc., as well as various railway solutions, both onboard and above ground, to support carbon neutrality.

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Photo Caption: (from left) Takayuki Tsuzuki, Senior General Manager, Itami Works, Mitsubishi Electric; Yoshio Nagatsuka, General Manager, Traction Systems Department, Itami Works, Mitsubishi Electric; Kouji Takahashi, Chief Executive Officer, Musashi Energy Solutions; Masaru Maeda, Managing Executive Officer, Musashi Seimitsu Industry
About Mitsubishi Electric Corporation
With more than 100 years of experience in providing reliable, high-quality products, Mitsubishi Electric Corporation (TOKYO: 6503) is a recognized world leader in the manufacture, marketing and sales of electrical and electronic equipment used in information processing and communications, space development and satellite communications, consumer electronics, industrial technology, energy, transportation and building equipment. Mitsubishi Electric enriches society with technology in the spirit of its “Changes for the Better.” The company recorded a revenue of 5,257.9 billion yen (U.S.$ 34.8 billion*) in the fiscal year ended March 31, 2024. For more information, please visit
*U.S. dollar amounts are translated from yen at the rate of \151=U.S.$1, the approximate rate on the Tokyo Foreign Exchange Market on March 31, 2024
About Musashi Energy Solutions Co., Ltd.
Musashi Energy Solutions is a pioneer in the mass production of Hybrid Supercapacitor, which are characterized by high output, long life and high safety. It is a sustainable energy device that is expected to make a great step towards the realization of a carbon-neutral society.
About Musashi Seimitsu Industry Co., Ltd.
Musashi Seimitsu Industry Co., Ltd. is a global auto parts Tier1 company for automobiles and motorcycles, whose headquarters is located in Toyohashi, Japan. It has 35 manufacturing sites spreading across Europe, North and South America, China, and South East Asia. Musashi specializes in designing, developing and manufacturing products such as Differential Assemblies, Transmission Gears and Assemblies, and Linkage and Suspension (L&S) products especially for the future automobiles including electric and autonomous vehicles. Musashi is also generating and expanding new businesses through open innovation with global startups to contribute to the SDGs in wider business domains. Musashi AI, a leading-edge AI technology subsidiary to lead Industry 4.0, is one of the examples. Musashi Website:


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