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Feb 13, 2014

Panasonic's 12V Ni-MH Energy Recovery Systems in New Idle-Stop Minicars from Nissan and Mitsubishi

The 12V Energy Recovery System helps improve the performance of idle-stop vehicles.

Osaka, Japan - Panasonic Corporation today announced that its 12V Energy Recovery Systems that use nickel metal hydride (Ni-MH) batteries are installed in the new idle-stop vehicles just rolled out by Nissan Motor Co., Ltd. and Mitsubishi Motors Corporation, the Nissan DAYZ ROOX*1 and Mitsubishi eK Space*2. The new models were designed and developed for the Japanese market by NMKV Co., Ltd., a joint venture formed by the two automakers.

With growing environmental awareness, consumers are increasingly opting for eco cars such as hybrid electric vehicles (HEV) as well as vehicles employing idle-stop systems in pursuit of fuel economy. However, because conventional idle-stop systems depend on a single lead-acid battery to take care of all electrical needs of the vehicle, from restarting the engine to running the air-conditioner and other electrical components with the engine off, the battery is used very often.

Panasonic's 12V Energy Recovery System not only solves this problem but also improves fuel economy using recovered energy efficiently and extends the service life of the main lead-acid battery, thus contributing to increased performance of idle-stop vehicles. The system has the same 12V voltage as the main lead-acid battery and adopts Panasonic's Ni-MH battery cells that can endure high-temperatures. As a result, the system eliminates the need for voltage trasnformation and enables simplification of the control and cooling systems - which are highly praised by Nissan and Mitsubishi.

Panasonic is strengthening the development and business of lithium-ion and Ni-MH batteries for eco cars, and already has a successful record of supplying batteries for electric vehicles, plug-in hybrids and HEVs for multiple automobile manufacturers around the world. Panasonic's Ni-MH batteries are durable and able to maintain a high charging/discharging capacity over an extended period of time. This is supported by the company's unique battery manufacturing technologies, including polar plate sintering technology*3. Panasonic also has many years of experience in building battery systems, such as those incorporating batteries with a battery control that optimizes the performance of each battery.

Panasonic will continue to accelerate the development and commercialization of high performance batteries and battery systems to expand its eco car battery business on a global scale.

Notes:

*1. Except for a turbo engine car

*2. Except for the eK Space Custom T

*3. Technology involving firing of metal nickel powder at high temperatures for manufacturing rigid, porous nickel substrate.

[12V Energy Recovery System]

Battery:10 x D size Ni-MH battery cells for automobiles
Voltage:12 V
Capacity:6Ah
Size:230 x 205 x 80mm
Weight:Approximately 3.4kg

[Major Features of 12V Energy Recovery System]

  1. The 12V energy recovery system improves fuel economy by supplying the recovered energy to the electrical components.
  2. The system has the 12V voltage that can be fitted to existing idle-stop systems without the use of a transformer. The system adopts Ni-MH battery cells that have outstanding high temperature performance.
  3. Contribution to increased service life of the main lead-acid battery.

[Concept Diagram of 12V Energy Recovery System]

About Panasonic

Panasonic Corporation is a worldwide leader in the development and engineering of electronic technologies and solutions for customers in residential, non-residential, mobility and personal applications. Since its founding in 1918, the company has expanded globally and now operates over 500 consolidated companies worldwide, recording consolidated net sales of 7.30 trillion yen for the year ended March 31, 2013. Committed to pursuing new value through innovation across divisional lines, the company strives to create a better life and a better world for its customers. For more information about Panasonic, please visit the company's website at http://panasonic.net/.

Media Contacts:

Panasonic Corporation
Tokyo Public Relations Office
Tel:+81-(0)3-3574-5664 Fax:+81-(0)3-3574-5699
Panasonic News Bureau
Tel:03-3542-6205 Fax:03-3542-9018
*The content in the following news releases is accurate at the time of publication but may be subject to change without notice. Please note therefore that these documents may not always contain the most up-to-date information.

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