WeLion New Energy is at the forefront of battery technology, aiming to enhance safety and efficiency with its semi-solid-state battery cells. These innovative batteries promise to offer higher energy density than traditional lithium-ion batteries, which are commonly used in electric vehicles (EVs), boats, and drones. As the demand for more powerful energy storage solutions continues to rise, WeLion’s approach could be a game-changer in the energy sector.
Currently, lithium-ion batteries rely on a flammable liquid electrolyte that poses safety risks. In contrast, solid-state batteries, utilizing a solid electrolyte, can provide improved energy density and safety. However, manufacturing fully solid-state batteries remains a significant challenge. Therefore, WeLion is focusing on semi-solid-state batteries that combine both liquid and solid components. In an impressive collaboration with Nio, a Shanghai-based EV manufacturer known for its battery-swapping technology, WeLion launched a battery pack in 2023 with an energy density of 360 watt-hours per kilogram (wh/kg), notably surpassing the average of 200 wh/kg for conventional lithium-ion packs. This development enabled a remarkable driving range of over 1,000 kilometers (621 miles), although only 200 units were produced due to high costs.
In addition to its work with electric vehicles, WeLion is expanding its battery technology to maritime applications, powering cargo ships and ferries through its subsidiary. Looking ahead, the company is ambitiously developing batteries with even higher energy densities, having achieved an impressive 824 wh/kg in lab tests. However, scaling production while remaining cost-competitive against larger players like CATL presents a substantial challenge. Moreover, translating laboratory results to real-world applications can be unpredictable. WeLion aims to address these hurdles by launching a new semi-solid-state battery for drones by the end of this year, targeting an energy density of 410 wh/kg, and plans to release its first all-solid-state battery for cars in 2027.
Source: WeLion New Energy and its semi-solid-state batteries via MIT Technology Review