Honda Motor Co Ltd exhibited a detachable lithium-ion (Li-ion) rechargeable battery at Ceatec Japan 2017, which took place from Oct 3 to 6, 2017, at Makuhari Messe in Chiba Prefecture, Japan.
It can be used for electric two-wheeled vehicles (electric motorbikes) and ultra-small electric vehicles (EVs) and as a residential power source. The capacity of the battery is expected to be 1kWh or larger. As a cell of the battery, Honda is considering using "18650," which is widely used for consumer products, and planning to purchase the cell from Panasonic Corp, LG Electronics Inc, etc.
The mass of the battery is expected to be about 8kg. The battery measures approximately 150 (L) x 170 (W) x 300m (H). Honda expects to use 1-2 and four units of the battery for an electric motorbike and ultra-small EV, respectively.
"For a light car or passenger car, 10 to 20 units of the battery need to be mounted," Honda said. "It is not realistic because it takes time to replace so many batteries."
Detachable batteries have many advantages. First, it becomes easier to achieve a desired drive range by changing the number of batteries. Second, batteries can be updated in accordance with technical advances, making it easier to improve vehicle performance. Third, one battery can be used for various purposes, drastically lowering the cost that consumers pay for their vehicles.
In addition, Honda is focusing on the use of the battery in daily life