Chongqing - Talent New Energy and Changan Auto have recently launched diaphragm-free semi-solid-state lithium battery technology in Chongqing, a breakthrough for new energy vehicles. With high energy density, safety, and durability, solid-state batteries are a game-changer, a Talent New Energy representative told Bridging News.

The representative further highlighted that countries worldwide have incorporated solid-state batteries into their development strategies due to their numerous advantages.

Global race intensifies for solid-state battery leadership

Talent New Energy's production facility in Chongqing. (Photo/Talent New Energy)

The representative noted that The White Book on Solid-State Lithium Battery Technology (the White Book) by Talent New Energy and Changan Auto highlights the U.S., EU, Japan, and South Korea's efforts to integrate solid-state batteries with the automotive industry.

In the U.S., startups are advancing solid-state battery technology through partnerships with automakers such as Volkswagen.

Several EU countries have approved a EUR 3.2 billion joint investment plan to support solid-state battery development. BMW will collaborate with Solid Power, a U.S. all-solid-state battery company, to produce solid-state battery-powered vehicles by 2030.

Japan's Ministry of Economy, Trade, and Industry (METI) aims to commercialize all-solid-state batteries by 2030. Toyota has partnered with energy company Idemitsu Kosan to advance efficient solid-state electrolytes.

Meanwhile, South Korea has laid out its K-Battery Development Strategy, investing heavily in bringing solid-state batteries to market by 2027. Key players like LG and Samsung SDI are actively developing this technology.

In the global market, partnerships between solid-state battery firms and automakers are thriving. Talent New Energy remains focused on solidifying its position with cutting-edge domestic and international technologies before entering overseas markets.

Media reports highlight that industry experts view the mass production of solid-state batteries, especially all-solid-state types, as pivotal for technological leadership. Nations and companies are racing to dominate the global market, driven by advancements and leadership in battery R&D.

Diaphragm-free technology enhances market competitiveness

Talent New Energy's automated production line in Chongqing. (Photo/Talent New Energy)

The Talent New Energy representative said their new semi-solid-state battery technology is the first in the industry to take a diaphragm-free design approach.

Key components in lithium batteries include electrodes, electrolytes, and separators. Lithium ions move between the electrodes through the electrolyte to store and release energy during charging and discharging. The polymer separator prevents direct contact and short-circuiting, allowing ions to pass through.

However, the White Book notes that traditional liquid electrolytes in batteries are corrosive, flammable, and prone to oxidation, posing safety risks and limiting battery performance improvements.

"To address these issues, traditional liquid battery has relied on adding materials like thicker separators or additional coatings to enhance safety, but this increases material costs and doesn't fundamentally solve the safety problems posed by liquid electrolytes," said the representative.

He explained that diaphragm-free technology replaces the separator with a solid electrolyte layer, enabling the battery to shift from liquid to semi-solid.

The diaphragm-free technology uses an "electrode composite solid-state electrolyte layer" to replace some functions of the electrolyte and separator. This method effectively prevents lithium dendrite formation and penetration, ensuring intrinsic safety.

The solid electrolyte layer, made from durable, chemically stable, and heat-resistant materials, enhances battery safety. Additionally, removing the separator cuts costs. The representative noted that Talent New Energy's diaphragm-free semi-solid-state battery has already lowered material costs compared to liquid batteries.

The company is focusing on technology development while planning future collaborations with overseas automakers. As production costs drop and diaphragm-free semi-solid-state battery technology progresses, the company expects to attract more international partners, including automakers.