Battery production value in Japan 2022, by type

Batteries are mobile power sources that are used in a plethora of electrical gadgets. From medical devices, such as hearing aids, to consumer electronics, such as smartphones, to industrial applications such as cordless power tools: society as we know it would be unthinkable without the existence of batteries. Japan is one of the important global players in the battery industry and has been on the forefront of innovation in the field for decades. In 2022, the total production value of batteries in Japan amounted to 1.17 trillion Japanese yen, increasing compared to the previous year and showing a strong development during the past decade. Roughly half of this year’s value consisted of built-in lithium-ion batteries for vehicles, showcasing the importance of automobile batteries in recent times. 

Primary batteries

The battery industry distinguishes between primary and secondary battery types. Primary batteries are single-use products which commonly feature in household appliances that see infrequent usage and which do not require large amounts of power, such as remote controls. This has been, and currently still is, the type of battery with the highest production volume. The most commonly produced type in Japan is the alkaline manganese dioxide battery, followed by the silver oxide battery, and the lithium battery. Production of primary batteries is relatively inexpensive, but requires proper disposal to circumvent them being an environmental hazard.

Secondary batteries

Secondary batteries are multiple-use rechargeable batteries which are commonly employed in electrical gadgets that require a constant flow of energy at a relatively high intensity, such as in the case of electrical cars. Notable Japanese industry players, such as Panasonic and GS Yuasa are globally prominent in the manufacturing of rechargeable lithium-ion batteries for automobiles. While primary batteries are more numerous, secondary batteries manufactured in Japan comprise the overwhelming value of industry production. Compared to single-use batteries, rechargeable batteries are pricier to produce but promise longevity of use and are environmentally friendlier.