CATL Mass Produces Sodium-Ion Batteries While Focusing R&D on ‘Breathable’ Lithium-Air Batteries for Extended EV Range

July 5, 2026

CleanTechnica China

Overview

CATL, the world’s largest battery manufacturer, is accelerating mass production and market deployment of sodium-ion batteries, while simultaneously focusing on “breathable” lithium-air batteries as a future breakthrough technology. CATL’s Chief Scientist Wu Kai emphasized that lithium-air technology, with its extremely high theoretical energy density, will contribute significantly to lighter electric vehicles (EVs) and vastly extended driving ranges. This dual strategy aims to solidify CATL’s leadership in both immediate market needs and long-term technological innovation.

In Depth

Key Findings

CATL, the world’s largest battery manufacturer, is not only ramping up mass production and market deployment of sodium-ion batteries but also actively dedicating significant research and development efforts towards “breathable” lithium-air batteries (Li-air battery) as a next-generation, transformative technology. Wu Kai, CATL’s Chief Scientist, stated at the 2026 “Powering The Nation” forum that the company’s “long-term focus is on lithium-air battery technology,” underscoring its potential to revolutionize future electric vehicle (EV) performance.

Technical Details

Lithium-air batteries are considered a highly promising next-generation battery technology due to their theoretically superior energy density compared to current lithium-ion batteries. This technology utilizes oxygen from the air as a cathode reactant and lithium metal as the anode, enabling lightweight and high-capacity energy storage. Dubbed “breathable batteries” for their use of ambient oxygen, they hold the potential for dramatic reductions in EV weight, significantly extended driving ranges, and broad applications in portable electronics and aerospace. CATL’s research in this field is reportedly concentrated on advancements in material science, electrolyte development, interface stability, and improving cycle life.

Background & Context

The rapidly expanding electric vehicle market continuously demands longer driving ranges and faster charging times. While lithium-ion battery technology continues to evolve, it is approaching its physical limits in terms of energy density. Sodium-ion batteries address immediate market needs by offering an abundant, cost-effective alternative to lithium. In contrast, lithium-air batteries, with their immense energy density potential, are positioned as the ultimate successor to lithium-ion technology. CATL’s strategic approach involves leveraging sodium-ion batteries for short-term market expansion while securing long-term technological leadership through lithium-air battery development.

Strategic Significance & Outlook

CATL’s long-term focus on lithium-air battery R&D demonstrates its commitment to constantly pushing the boundaries of battery technology and anticipating future market demands. While significant technical hurdles (e.g., cycle life extension, safety, charging efficiency) remain for the commercialization of lithium-air batteries, investments from industry leaders like CATL are crucial for accelerating breakthroughs. Successful development of lithium-air batteries could revolutionize the EV industry, dramatically enhance energy storage capabilities for power grids and portable devices, and pave a substantial path towards a sustainable energy future.

Source: https://cleantechnica.com/2026/07/03/catl-is-mass-producing-sodium-ion-batteries-and-chasing-breathable-lithium-air/

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