China’s CATL Unveils a Sodium-Ion Battery Lineup

China’s Contemporary Amperex Technology Co., Limited (CATL) has launched a brand new lineup of sodium-ion batteries dubbed Naxtra as well as a second generation of its first charging Shenxing electric vehicle battery. According to CATL, the new lineup of Naxtra batteries will begin mass production in December.

Most battery electric vehicles (BEVs) on the market currently use lithium ion battery packs but there has been a notable push to develop alternative EV batteries that are more energy dense and are less likely to combust. CATL was the first large auto battery maker to introduce the sodium-ion battery, a new type of battery that uses sodium-ions rather than lithium ions to store and transfer energy.

Given sodium’s abundance in the environment, sodium-ion batteries would be a lot cheaper to produce compared to Li-ion batteries. They are also safer than conventional EV batteries but tend to have lower energy density compared to lithium ion batteries, making them suitable for certain EV-related use cases. In particular, sodium ion batteries would work great in short range and budget electric cars as well as grid storage.

The first battery produced under CATL’s new Naxtra brand will be a sodium ion battery with an energy density of 175 watt-hours per kilogram. This is almost equal to the energy density of the lithium iron phosphate (LFP) batteries used in grid energy storage systems and electric cars.

CATL co-president of research and development Ouyang Chuying notes that as the technology and supply chain for sodium ion batteries develops, they may gain a cost advantage over lithium ion batteries. This new type of battery could be the key to developing low cost electric cars for the average driver, particularly those who live in urban regions and have a small daily commute.

According to the company’s billionaire founder Robin Zeng, sodium ion batteries have the potential to replace up to 50% of the LFP market currently dominated by the battery maker. Additionally, the company says its second generation Shenxing fast charging battery will be able to gain 323 miles of range after just 5 minutes of charging and can charge from 0-80% in 15 minutes in cold weather conditions.

During a recent Shanghai event, CATL’s Chief Technology Officer Gao Huan said the Shenxing battery will be installed in 67 new EV models in 2025. CATL’s advancements in sodium-ion and fast-charging battery technologies signify a significant leap forward in the EV industry. These innovations promise to make electric vehicles more accessible and efficient, potentially accelerating the global shift towards sustainable transportation.

We are likely to see new battery designs from other existing players in the industry, such as SolarBank Corp. (NASDAQ: SUUN) (Cboe CA: SUNN) (FSE; GY2), as the EV and energy storage landscape evolves to cut costs and increase performance.

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