Date: 2026-04-30 hits: 102
Currently, the global energy transformation is progressing profoundly, and the battery industry, as a core pillar of the new energy sector, is ushering in a dual opportunity of rapid growth and technological iteration. In the first quarter of 2026, my country's energy storage battery shipments reached 209 GWh, a year-on-year increase of 115%, accounting for 97% of the global market; power battery shipments reached 291.9 GWh, a year-on-year increase of 34.3%, consolidating its leading global position with tremendous momentum.
On April 27th, Desay Battery held a major global launch event for its sodium battery and solid-liquid battery technologies under the theme of "Sodium Battery Pioneers, Solid-Liquid Battery Empowerment." Addressing industry pain points and anchoring future directions, the company officially released two breakthrough technologies: a new generation of low-temperature special sodium batteries and a new solid-liquid battery with an energy density of up to 420 Wh/kg. This comprehensively showcased Desay Battery's technological breakthroughs and industrialization capabilities in the sodium battery and solid-state battery fields.
Extreme Breakthrough: New Generation Sodium Battery Technology Makes Extreme Cold No Longer a Forbidden Zone
At this launch event, Desay Battery officially launched its new generation of low-temperature special sodium batteries for extreme application scenarios such as military, aerospace, polar regions, plateaus, emergency response, and special vehicles. Addressing the common pain points of traditional batteries in low-temperature environments, such as capacity drop, difficulty starting, and inability to withstand high currents, Desay Battery's low-temperature special sodium battery sets a new benchmark for the industry, achieving five key performance breakthroughs:
1. Extremely Cold Charging Capability: Covers the entire charging range from 0-100% SOC at 40°C, transforming charging in extremely cold environments from "impossible" to "stable input."
2. Extremely Cold High Power: Capacity retention rate ≥90% at -40°C 6C discharge, ensuring undiminished power in extreme cold conditions.
3. Ultra-High Power Density: ≥3000W/kg, providing instantaneous power for heavy loads and high-frequency pulse equipment.
4. Room Temperature Ultra-High Rate: 20C continuous discharge, providing rock-solid instantaneous high power.
5. High Temperature Ultra-Long Lifespan: Micro-cycle lifespan exceeds 20,000 cycles at 60°C, maintaining composure even in high-temperature environments.
Behind the performance data lies Desay Battery's comprehensive technological breakthroughs, encompassing everything from materials science and interface control to structural design and manufacturing processes. Traditional batteries struggle with the challenges of bulk and interfacial transport freezing under extremely cold conditions, leading to a precipitous drop in charge/discharge efficiency at low temperatures. Addressing this core challenge, Desay Battery's low-temperature special sodium batteries utilize several key technologies, making extreme cold no longer a no-go zone for batteries. Through low-temperature rapid desolvation interface technology, the electrolyte solvation structure is reconstructed, and combined with low-resistance additives, a thin and stable interface layer is created, significantly reducing low-temperature polarization and allowing ions to "travel incredibly fast" even at -40°C. A dual-interface anti-aging mechanism reduces side reactions by over 70%, making 20,000 ultra-long cycles at 60°C no longer just a theory. A low-strain stable framework, through high-entropy design and multi-scale synergistic modification, lowers the ion migration energy barrier, paving a "highway" for each charge/discharge cycle at the nanoscale. An ultrasonic-synergistic pre-sodiumization process makes the electrode surface mirror-like, improving air stability, suppressing sodium loss, and nipping performance degradation in the bud at the manufacturing stage.
Authoritative third-party testing provides Desay Battery's sodium batteries with the strongest endorsement: at -20°C, a full charge of 0.5C results in no sodium deposition after dry cycles, with a capacity retention rate exceeding 80%; at -40°C, it can still achieve full SOC range charging at 0.1C; its -29°C start-stop performance completely surpasses lead-acid standards, completely solving the problem of ignition failure at low temperatures; its 20C continuous discharge capacity retention rate reaches 95.54%, and its 8C long-cycle performance is significantly better than conventional lithium batteries. Safety tests have been successfully passed, including overcharge and needle penetration tests, ensuring the safety of personnel and equipment even under extreme conditions.
From technological breakthroughs to product implementation, Desay Battery has built a complete closed loop of core competitiveness. Regarding sodium battery intellectual property, it has applied for over 20 patents and participated in the formulation of over 10 industry standards, constructing a core technology moat. Desay Sodium Battery offers full coverage of prismatic, cylindrical, and pouch cell batteries with capacities ranging from 7-180Ah. It can be quickly customized to meet diverse application needs. Its lithium-sodium production lines can be flexibly switched, achieving large-scale manufacturing capabilities with an automation rate of up to 99%, reaching industry-leading levels.
Desay Battery already has multiple sodium battery application cases in operation, delivering megawatt-level products and receiving practical verification and praise from numerous customers. From military to aerospace, from polar expeditions to high-altitude emergency response, Desay Battery's new generation of low-temperature special sodium batteries will push the boundaries of "special applications" further north, higher, and more dangerous.
Energy Rebirth: A New 420Wh/kg Solid-Liquid Battery – Desay's Practical Answer.
While sodium batteries have solved the applicability problem in extreme environments, Desay Battery's new solid-liquid battery redefines the boundary between high energy density and high safety. At this press conference, Desay Battery officially launched a new solid-liquid battery with an energy density of up to 420Wh/kg. It has achieved 1000 cycles in real-world testing and has passed rigorous safety tests, including nail penetration and 300°C hot plate heating, demonstrating no fire or explosion. It exhibits wide temperature adaptability, maintaining stable output in both low and high temperature environments, and can be applied to diverse scenarios such as high-end power, flagship consumer electronics, and low-altitude economy.
Rong Qiang, Dean of the Desay Battery Research Institute, pointed out at the press conference that the core of energy density lies in the efficient ratio of active material energy to battery mass. Desay Battery has chosen a more pragmatic technological route, combining the advantages of solid-state, liquid-state, and high specific energy, achieving simultaneous improvements in safety, energy, lifespan, and cost with less electrolyte and a thinner structure.
Supporting this high-performance solid-liquid battery system solution are the four core technological barriers built by Desay Battery:
1. High-Speed Ion Transport Technology with Lean Electrolyte: In a lean electrolyte environment with extremely limited electrolyte, a fast-ion layer with an interfacial gradient is constructed, opening up a "highway" for ion transport. A high-voltage, high-stability system paired with an elastomer composite anode maximizes the energy output of every gram of active material with less electrolyte and a thinner structure.
2. In-Situ Dense Interface Engineering: Differentiated control of the positive and negative electrode interfaces ensures high-speed ion conduction at the positive electrode and self-healing, anti-powdering properties at the anode, ensuring long-term battery stability and durability.
3. Active + Intrinsic Dual Safety Technology: A multi-material blend combines the advantages of various materials to enhance intrinsic safety, reduce the risk of active group defects, and integrates self-developed active safety technology to eliminate potential safety hazards at the source.
4. Novel Solid-State Electrolyte Membrane: Desay Battery's self-developed solid-state electrolyte membrane combines high ionic conductivity, ultra-thin thickness, high flame retardancy, and high mechanical strength. Its wet coating process is highly compatible with existing lithium-ion battery production lines, providing an efficient technical path for low-cost mass production of novel solid-liquid batteries.
Currently, Desay Battery has established a pilot production line for new solid-liquid batteries covering the entire manufacturing chain from electrodes and solid electrolyte membranes to cells, capable of mass-producing 30Ah-class soft-pack solid-liquid cells. It has also participated in the formulation of multiple solid-state battery standards, established the Hunan Provincial Engineering Research Center for Solid-State Batteries and Smart Energy Technologies, and holds numerous patents for new solid-liquid batteries, constructing a comprehensive intellectual property protection system.
From the laboratory to the production line, Desay Battery demonstrates through its actions that the era of mass production of high-energy solid-liquid batteries has arrived.
Looking to the Future: Diverse Application Scenarios, Steady Progress
Desay Battery adheres to a steady progress strategy of "implementing one mature technology at a time." Its sodium-ion battery specialty batteries will initially cover extreme application scenarios such as military, aerospace, polar regions, high-altitude areas, emergency response, and special vehicles. Currently, its new solid-liquid batteries focus on two high-value sectors: high-end power and flagship consumer electronics, meeting the core requirements of high-end equipment with their lightweight, intrinsic safety, and wide temperature adaptability. In the medium to long term, it plans to expand into the new energy vehicle sector, creating long-range, fast-charging, and accident-free power battery solutions.
Sodium-ion batteries expand the boundaries, allowing energy to flow freely under extreme cold, heat, and high loads; solid-liquid batteries empower high energy density and high safety, moving from contradiction to symbiosis. Desay Battery will continue to deepen its expertise in sodium-ion and solid-liquid battery technologies, working with industry chain partners to promote the application of safer, higher-energy, and more reliable battery technologies, jointly building a better zero-carbon future.
