Contemporary Amperex Technology Co. Limited (CATL), the world’s largest EV battery manufacturer, has officially identified lithium-air batteries as its next-generation technology focus, signaling a major shift in the future of electric vehicle energy storage.
Speaking at the 2026 Powering the Nation Forum, CATL Chief Scientist Wu Kai, an academician of the Chinese Academy of Engineering, outlined the company’s long-term strategy, describing lithium-air batteries as the next frontier in global battery competition.
The announcement marks the first time CATL has publicly named lithium-air technology as its primary long-term research direction.
Why Lithium-Air Batteries Matter
Unlike today’s lithium-ion batteries, which rely on heavy cathode materials such as nickel, cobalt, and manganese to store lithium ions, lithium-air batteries replace much of that internal structure with oxygen drawn directly from the surrounding air.
The design uses a lithium metal anode while oxygen from the atmosphere serves as the cathode reactant, dramatically reducing battery weight and complexity. Because the battery effectively “breathes” during operation, lithium-air cells are often referred to as breathable batteries.
That simpler architecture unlocks extraordinary energy potential.
Current lithium-ion batteries typically deliver around 250-270 Wh/kg, while next-generation solid-state batteries are expected to reach roughly 500 Wh/kg. By comparison, lithium-air batteries have a theoretical energy density of approximately 12,000 Wh/kg—a figure approaching gasoline’s energy density of about 13,000 Wh/kg.
Although commercial systems remain years away, laboratory prototypes have already exceeded 1,200 Wh/kg, more than four times the energy density of today’s mainstream EV batteries.
If the technology reaches mass production, electric vehicles capable of traveling more than 1,600 km (1,000 miles) on a single charge could become a reality, significantly reducing range anxiety.
Technical Challenges Remain
Despite their enormous promise, lithium-air batteries have been studied since the 1970s without reaching commercialization.
The biggest obstacles have been their sensitivity to moisture and carbon dioxide in the air, unstable catalyst performance, limited cycle life, and safety concerns associated with highly reactive lithium metal.
Recent research, however, suggests meaningful progress is being made.
In 2024, researchers from the University of Illinois Chicago, Argonne National Laboratory, and California State University, Northridge demonstrated a lithium-air battery capable of operating for more than 700 charge cycles in an air-like environment.
A year later, scientists at Argonne National Laboratory and the Illinois Institute of Technology unveiled a more advanced prototype delivering approximately 1,200 Wh/kg while achieving 1,000 charge cycles at room temperature.
The breakthrough relied on a new four-electron chemical reaction that forms and decomposes lithium oxide instead of lithium peroxide or lithium superoxide, improving overall energy efficiency. Researchers also replaced conventional liquid electrolytes with a solid-state ceramic-polyethylene oxide composite containing lithium-rich nanoparticles, helping improve both safety and long-term stability.
These developments have strengthened expectations that lithium-air technology could become commercially viable sometime after 2030.
CATL’s Three-Stage Battery Strategy
CATL’s lithium-air announcement fits into a broader roadmap that spans multiple battery chemistries.
The company has already successfully commercialized sodium-ion batteries after first introducing the technology in 2020. Mass production began in 2026, with sodium-ion packs now appearing in vehicles including the GAC Aion UT and Changan Oshan 520, while additional models from Geely, Chery, and FAW are expected to follow.
The strategy now appears to follow three distinct phases:
– Short term: Expand proven lithium-ion and sodium-ion technologies to meet current market demand.
– Medium term: Introduce solid-state batteries to improve range, charging performance, and safety.
– Long term: Push the theoretical limits of energy storage through lithium-air battery development.
Beyond passenger vehicles, CATL also sees lithium-air technology playing a role in heavy-duty transportation and large-scale renewable energy storage, where higher energy density could help stabilize electricity generated from solar and wind power.
CATL Maintains Global Battery Leadership
CATL enters this next phase from a position of strength.
The company remains the world’s largest supplier of EV batteries, holding a 47.0% global market share in power batteries as of April 2026. It also leads the energy storage battery market, shipping 121 GWh in 2025 and capturing 30.4% of the global market, marking its fifth consecutive year as the world’s largest supplier.
While lithium-air batteries are still years from commercial deployment, CATL’s decision to prioritize the technology underscores growing confidence that it could eventually deliver a step change in EV range and energy storage performance, potentially reshaping the future of electric mobility after 2030.
[source: CarNewsChina, image credit: Daegu Gyeongbuk Institute of Science and Technology]
