Energy storage helps to increase the stability of the power system, which can be divided into portable, household, industrial and commercial, grid side, etc.
Among them, portable power station is an emerging market segment in recent years.
Portable power station, referred to as "outdoor power station", is a small energy storage device with built-in lithium ion battery instead of traditional small fuel generator. It has the characteristics of large capacity, high power, safety and portability, and can provide stable AC/DC voltage output power system.
Its battery capacity is between 100Wh-3000Wh, equipped with AC, DC, Type-C, USB, PD and other ports, supporting the charging of mobile phones, laptops, drones, refrigerators and other products in the mobile electricity scenario, which can match the mainstream electronic devices in the market, and the use of photovoltaic panels can realize the charging of energy storage devices.
Its application scenario is suitable for off-grid electricity demand such as outdoor travel, emergency disaster relief, medical rescue, outdoor operations, etc. It builds small micro-grid system and escorts the electrification process.
From the distribution of portable energy storage sales in 2021, the United States is the world's largest portable energy storage market, accounting for about 47.3%, and Japan takes up about 29.6%, accounting for more than 75% in total.
China is the world's leading producer of portable energy storage, accounting for 90% of global production and shipments.
Comparison of electrochemical energy storage application scenarios
Compared to household storage, portable energy storage products are smaller, but more portable.
Home energy storage products are usually square in shape, connected to power generation equipment and fixed to the wall of the house.
Portable energy storage products are usually box shaped and equipped with handles for easy handling and movement.
Both household energy storage products and portable energy storage products mainly involve technical modules such as cell, inverter, photovoltaic, BMS, etc., with strong interoperability of technical routes, but different concerns in terms of cost, capacity and service life.
Portable energy storage industry development trend: High capacity is the development trend
Portable energy storage products take safety and convenience as the core. With the continuous upgrading and updating of industry technology, the capacity segment of portable energy storage products is gradually improved.
According to the data of China Chemical and Physical Power Industry Association, the sales volume of products with a capacity of more than 1000Wh accounted for 3.0% in 2016, and rose to 10.3% in 2021. It is expected that by 2026, the global shipment will exceed 30 million, with a market size of more than 80 billion yuan, and the share of large capacity products with a capacity of more than 1000Wh will continue to increase.
Due to the wider applicability of high-capacity products and more adaptation scenarios, more users will be attracted to buy. Under the trend of high-capacity products, product sales scale is expected to continue to increase.