The Chinese Academy of Sciences' Shenzhen Institute of Advanced Technology unveiled a groundbreaking development in the field of energy storage at the recent 25th China International High-Tech Fair—a new aluminum-based lithium-ion battery with unprecedented temperature adaptability.

The institute has reached a significant milestone after a decade of relentless research and development: mass production of China's first wide-temperature range, cost-effective, and long-life battery cell product. This breakthrough can withstand temperatures ranging from -70°C~80°C.

Key Advancements in Technology

Historically, lithium-ion batteries experienced capacity fading, shortened cycle life, and charging difficulties in extreme temperatures. Through groundbreaking research on negative electrode materials and electrolytes, the new aluminum-based lithium-ion battery addresses these challenges.

The institute substituted a new aluminum-based composite anode material for the traditional graphite negative electrodes. This breakthrough, combined with tailored electrolyte systems, resulted in the development of a battery product suite with an ultra-wide temperature range. Aluminum-based lithium iron phosphate batteries, lithium manganate batteries, lithium cobalt oxide batteries, and aluminum-based ternary batteries are examples of these.

Performance Breakthroughs

The new lithium-ion battery based on aluminum has several performance advantages. It excels at low-temperature charging, with normal charging achieved at temperatures as low as -30 degrees Celsius. The battery's energy density is 13%-25% higher than that of traditional lithium-ion batteries due to the high theoretical capacity of the aluminum-based anode material, ensuring a longer lifespan.

Furthermore, the product's excellent conductive properties allow for a rapid charging time of only 20 minutes, meeting the industry's demand for faster charging solutions.

Market Applications and Prospects

The new battery's versatility allows it to be used in a variety of fields, including photovoltaic energy storage, home energy storage, communication base station energy storage, rail transportation, aerospace, and polar scientific research. Notably, its distinct advantages make it especially well-suited for alpine environments.

Production and Future Outlook

The establishment of an ultra-wide temperature range battery cell and module manufacturing base project in Sichuan, China, is a significant step toward widespread adoption. The first phase, with a capacity of 0.2GWh, is scheduled to begin operations next year. The second phase will increase production to 2GWh, allowing for the new aluminum-based lithium-ion battery products to be applied and promoted more quickly.

As we witness this transformative moment in energy storage technology, the groundbreaking innovation of the Shenzhen Institute of Advanced Technology paves the way for a more adaptable, efficient, and sustainable future in the world of batteries.