【Sodium Ion Battery Anode: Putailai's Yichun Base Has Completed the Construction of the Pilot Production Line for Sodium Ion Battery Hard Carbon Anode】On July 12th, Putailai (603659.SH) announced on the interactive platform that the company is actively promoting the research and development and large-scale production of hard carbon anode materials supporting sodium ion batteries. The company's anode material production base located in Yichun, Jiangxi, has completed the construction of the pilot production line for hard carbon anode.

[Sodium Ion Batteries: Zhongna Energy Storage Sends 2,000 Sets of "Zhongna III" Sodium-ion Batteries to Hangzhou and Suzhou Markets] On July 10, Zhongna Energy Storage New Energy Technology (Gansu) Co., Ltd. in Zhengning County, Gansu Province, began loading 2,000 sets of "Zhongna III" low-temperature resistant, high-rate, and high-safety sodium-ion batteries onto vehicles and shipping them to Hangzhou and Suzhou markets. Cathode: Natron Energy. Zhongna II, cathode from CATL.

[Sodium Ion Battery Project: Jihou Sodium Ion Battery Project Signed in Huaqiao, Kunshan, Suzhou] In June, Jihou Intelligent Technology Co., Ltd. signed a contract to establish its sodium ion battery R&D and sales headquarters project in Huaqiao Economic Development Zone, marking the official launch of the first new energy sodium ion battery industry project in the region. This project mainly involves the R&D and sales of sodium ion batteries, energy storage, and power batteries, and is expected to achieve an annual sales revenue of over 2 billion yuan after it goes into production.

[Sodium Battery: East Best Enters the Sodium Battery Era with Four High-Performance Sodium Battery UPS Products] On June 6th, East Best Group, a leading UPS power supplier and innovator in the digital energy industry, officially released four new sodium battery UPS products, entering a new stage of independent research and development and production of sodium batteries. The series of sodium battery UPS products are all equipped with power-type square aluminum-cased sodium ion batteries independently developed and produced by East Best. Their energy density, cycle life, rate performance, and high-low temperature performance have all surpassed lead-acid batteries.

[Sodium battery: East is releasing four high-performance sodium UPS new products] On June 6th, East, a leading enterprise in UPS power supply and an innovator in the digital energy industry, officially released four new sodium UPS products, entering a new stage of independent research and development and production of sodium battery technology. The sodium UPS series products are all equipped with power-type square aluminum-shell sodium ion batteries independently developed and produced by East. Their energy density, cycle life, rate performance, and high and low temperature performance have all surpassed lead-acid batteries.

[Sodium batteries: the energy conversion efficiency of Guangxi Fulin Sodium Battery Energy Storage Power Station is 2% higher than lithium batteries] The operation results of Guangxi Fulin Sodium Ion Battery Energy Storage Power Station Project show that for the same energy storage system, the energy conversion efficiency of sodium ion batteries is 2% higher than that of lithium ion battery energy storage systems. Taking storing 100 units of electricity as an example, sodium batteries can discharge 92 units of electricity, while lithium batteries can discharge 90 units of electricity. One charge and discharge cycle can generate an additional 2 units of electricity. If the amount of discharged electricity increases, the 2.2% advantage in conversion efficiency will bring considerable benefits.

[Sodium battery: On May 28th, the construction site promotion activity of the Sichuan Starry Sodium Ion Battery Industry Project, with a total investment of 11.5 billion yuan, was held in Maliu Town, Dazhou Eastern Economic Development Zone. Liaoning Starry Sodium Electric Battery Co., Ltd. is investing in the construction of the whole industry chain of sodium ion batteries, including positive and negative electrodes, battery cells, PACK integration, energy storage power stations, and smart grid management. The first phase of the investment is 2 billion yuan, planning to build a sodium battery positive electrode material production line with an annual output of 10,000 tons, a battery cell production line with an annual output of 1 GWh, a sodium battery PACK integrated manufacturing base and energy storage power station infrastructure construction, one 220KV substation, distribution lines, and smart grid management system.]

Sodium Battery: The sodium ion battery of the country's first 10MWh grid-side energy storage power station for sodium ion batteries is produced by Fuyang Hainuo Technology Co., Ltd." Fuyang Hainuo Technology Co., Ltd. has completed the construction of the world's first GWh-level sodium ion battery production line and taken the product offline. It will achieve 1GWh in 2023, 5GWh in the second phase of 2024, 10GWh in 2025, and rapid expansion in 2026.

[Sodium Battery: 2GWh Sodium Ion Battery Project Signed in Henan] On the morning of May 8th, the Management Committee of Henan Xinxiang Power Supply Industry Development Zone held a signing ceremony for the investment cooperation agreement of the 2GWh annual production line project of sodium ion batteries with Zhongna Yingdian (Shenzhen) New Energy Co., Ltd.

New Progress in Sodium Ion Battery Electrolyte Research" - On May 7th, the Dalian Institute of Chemical Physics of the Chinese Academy of Sciences announced new progress in the research of sodium ion battery electrolyte. The vanadium trifluorophosphate of phosphate-based sodium ion battery has a high theoretical specific energy (507Wh/kg, comparable to lithium iron phosphate). However, vanadium trifluorophosphate-based sodium ion batteries have poor cycle stability due to vanadium dissolution and fluorine loss in the crystal cell, as well as oxidative decomposition of the electrolyte under high voltage. The team first analyzed and proved the root cause of capacity decay, and then through coordinated regulation and optimization, the cycle stability of vanadium trifluorophosphate-based sodium ion batteries within the voltage range of 2 to 4.3V (vs. Na/Na+) was significantly improved, with a capacity retention rate of over 95% after 1,000 cycles at 1C, representing an increase of more than 60% compared to conventional electrolytes. This work provides theoretical basis and support for the development and practical application of high-specific-energy and high-stability sodium ion batteries.