About Us

Panasonic Energy Co., Ltd. has established our Mission and future Vision — to contribute to the development of sustainable societies harmonizing enriched lifestyles with care for the environment — and our Will, which is essential to achieve this.

Trajectory of Freedom

Our energy evolution has been freeing people from various social problems
and constraints all through the ages.
Our forerunners’ passion, efforts, and spirit of challenge continue to give us
endless energy to realize the next phase of freedom.

Trajectory of Freedom

Our energy evolution has been freeing people from various social problems and constraints all through the ages.
Our forerunners’ passion, efforts, and spirit of challenge continue to give us endless energy to realize the next phase of freedom.

1923

Freedom from
Darkness
With the Bullet-shaped Bicycle Lamp and Excel Dry Battery the lighting time of bicycle lamps went from 2 to 3 hours to 30 to 40 times longer. This also lit up the spirits of cyclists.

image of Bullet-shaped Bicycle Lamp and Excel Dry Battery

1931

Freedom from 
Supply Shortage
Square-shaped battery lamps were a big hit and battery production couldn't keep up with demand. So, the Matsushita Electric Eighth Factory was set up in facilities transferred from a competitor, making mass production possible.

image of Matsushita Electric Eighth Factory

1954

Freedom from
Battery Leakage
National HYPER, Japan's first dry battery with a metal outer case, used a unique technology to make the change from a paper outer case. There was virtually no battery leakage and storage stability significantly improved as well.

image of National HYPER

1955

Freedom from
Inconveniences 
Battery-operated Gas Burner Lighter reached 2 million households due to its portability. Thereafter, in addition to lighting, various battery-operated products were developed for such fields as heating, power, and sound, to continue to make people's lives more convenient.

image of Battery-operated Gas Burner Lighter

1963
1969

Freedom from
Short Battery Life 
From National HYPER onward, the life of batteries became longer and longer. Hi-Top had a battery life 2 times longer than the conventional model and NEO Hi-Top's life was 1.5 times longer than Hi-Top's. Both realized the world's longest life at the time.

image of Hi-Top and NEO Hi-Top

1964

Freedom from
Size, Weight,
and Lack of Power 

Batteries evolved diversely due to a worldwide demand for lightness, smallness, and powerfulness. Especially, lithium-ion secondary batteries (1994 -) made notebook PCs and smartphones lighter in weight. They are backbones of today's information-based society.

image of lithium-ion secondary batteries

1970

Freedom from
Limitation 
When a Japanese party conquered Mt. Everest for the first time, the whole country was proud. In the harshest environment on earth, NEO Hi-Top supported important tasks, such as weather observation and communication between members.

image of NEO Hi-Top on the photo of a Japanese party conquered Mt. Everest

1976

Freedom from
Maintenance 
Motorization accelerated in the 1970s. Japan's first car battery CAREC with its ease of maintenance significantly contributed to the evolution of mobility in Japan.

image of Japan's first car battery CAREC

1991

Freedom from
Inconsistency 
The growing worldwide concern for the environment changed our battery development and led to the mercury-free dry battery. With a view toward a future where people's happiness and global environmental sustainability will harmonize, our challenge continues.

image of mercury-free dry battery

1997

Freedom from
Environmental Burden 
Fighting against climate change is the biggest challenge for mankind and mobility energy plays a key role. We once provided batteries for Toyota Prius and are now providing for Tesla. As energy that will change the future, the evolution of mobility energy must continue.

image of Toyota Prius and Tesla car

2003
2014

Freedom from
Time and Space 
Our energy incorporated in the return capsule of the asteroid probe Hayabusa fulfilled its role throughout its harsh and long journey. Later, our technology contributed to the success of the mission of Hayabusa 2 as well.

image of asteroid probe Hayabusa

2005
2008

Freedom from
Onetime Use 
eneloop, developed by SANYO Electric through company-wide efforts, and Rechargeable EVOLTA that followed it changed the status quo of batteries being disposed of after onetime use. The number of users continues to increase even today.

image of eneloop and rechargeable EVOLTA

2008

Freedom from
Giving Up 
For EVOLTA Challenge, a robot, EVOLTA-KUN, took on various difficult challenges, such as conquering the Grand Canyon with battery power. It represented our spirit of never giving up.

image of EVOLTA-KUN

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