GIIG

high-tech enterprise dedicated to the research and development

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GIIG

high-tech enterprise dedicated to the research and development

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Products

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Battery electrolyte pilot line

Electrolyte development

High performance battery

Intelligent equipment production line

About us

Dedicated to the development and research of internet technology

Sengyang Energy is a high-tech enterprise dedicated to the research, development, production, application development, and sales of lithium battery materials, process technology, and intelligent production lines. We focus on addressing the key challenges faced by startups as they transition from laboratory research to mass production, offering comprehensive end-to-end solutions that cover improvements in automation efficiency, process support for gel and composite materials, precise metering of solid powders, and contract manufacturing for solid-state batteries.

Our product portfolio includes lithium-ion battery electrolyte additives, electrolyte samples, electrolyte pilot production lines, intelligent automated tank cleaning lines, intelligent automated filling lines, and lithium salt automatic conveyor systems. Additionally, we provide technical consulting services such as professional factory design for lithium battery electrolyte production lines, process technology improvement, electrolyte formulation development and application, and intelligent automation system solutions.

Sengyang Energy boasts a strong R&D and production application technology team, with key expert members coming from renowned industry-leading companies, bringing deep industrial experience and technical expertise. We not only provide advanced equipment and materials but also focus on supporting our clients throughout their growth journey—helping them master core technologies and processes, offering production guidance, systematic training, and facilitating a smooth transition from the laboratory to mass production.

Our products

Provide a variety of communication and video capabilities Comprehensively meet business needs

Smart call center

Precise and efficient cloud electricity sales+Omnic channel cloud customer service helps enterprise industrial upgrading

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Smart call center

Precise and efficient cloud electricity sales+Omnic channel cloud customer service helps enterprise industrial upgrading

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Sms communication

Provide three -network coverage for the characteristics of various sms usage scenarios for enterprises、99%Arrival rate

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Data capacity platform

Provide number detection and screening service，Reduce promotion costs for enterprises

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100+

Country and region

999Ten thousand+

Usage amount

850Ten thousand+

Active user

900Ten thousand+

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News

The latest information is the first to watch

Impurities in electrolyte additives

Miscellaneous impurities in electrolyte additives: 1. Impurities are unavoidable, and what impurities matter. 2. Some compatible impurities. 3. Little influence on impurities sulfate fluorion phosphate carbonate dimer or trimer residual solvent 4. Very large impurities chloride ions: water alcohols, aldehydes, acids, substances containing active hydrogen impurities Metal ions: environmental pollutants: 5. The impact is not clear. First of all, whether it is a benign influence or a small influence, it is not "do not control". All impurities need to be regulated, at least to know how much their content is, at least how much is allowed to depend on their nature.

New electrolyte additive helps stabilize cycling of 5V lithium metal batteries (EES)

In recent years, based on cobalt-free LiNi0.5Mn1.5O4 (LNMO) positive electrode (5 V class, vs. Li+/Li) and lithium metal anode (3.04 V vs. Ultrahigh pressure lithium metal batteries with standard hydrogen electrodes have attracted a lot of attention as promising candidates for the next generation of high energy density and sustainable batteries due to their theoretical energy density of up to ~650 Wh/kg. In contrast to the unstable layered oxide LiNixCoyMnzO2, the toxic Co element caused by the LNMO spinel structure is eliminated and the inherent safety is eliminated. However, their development is severely limited by the incompatibility between the state-of-the-art carbonate electrolyte and the two aggressive electrodes. Here, we have synthesized a new electrolyte additive,2, 2-difluoroethylmethyl sulfone (FS), which enables stable cycling of ultra-high pressure lithium metal batteries in conventional carbonate electrolytes. On the cathode side, unlike conventional electrolyte additives, FS can be selectively adsorbed on the LNMO surface to form a special assembled FS "buffer" layer that can effectively remove free carbonate molecules from the cathode surface. Therefore, during charging, the -CF2H group of FS is well decomposed by the anode to form an inorganic rich CEI, which effectively inhibits the micro-fracture and transition metal dissolution of LNMO. On the anode side, FS can also perform cathode decomposition well, resulting in an inorganic rich SEI for stable cycling of Li metal anodes. As a result, the carbonate electrolyte containing FS additives gives cobalt-free 5V-class lithium metal batteries unprecedented high performance, i.e. a 40um-Li /LNMO (load = 7 mg·cm2) full battery with a high capacity retention rate of 84% for 600 cycles at 1C using a commercial carbon-based low-concentration electrolyte. A complete battery consisting of a highly loaded cathode (20 mg·cm2) and an ultra-thin lithium anode (40 mm) has a capacity retention rate of 99% after 100 cycles at 0.25C. In addition, to our knowledge, previously unreported Li/LNMO bag-like batteries have been assembled and can run stably for more than 150 cycles. This paper is based on Rational molecular design of electrolyte additive endows stable cycling performance of cobalt-free 5 V-class lithium metal batteries, published in Energy & Environmental Science.

The Most Comprehensive In-Depth Analysis Ever (Including Latest Industry Trends)

Among the key materials of lithium-ion batteries, the electrolyte is often underestimated as a simple "ion transport medium," but its true role is that of a "system control hub" that integrates battery performance. By regulating the solvation structure and interface reaction pathways, it governs the formation of the SEI/CEI protective films, thereby determining the battery's fast-charging capability, cycle life, and safety. The essence of electrolyte design lies in skillfully balancing multiple inherent contradictions: achieving high ionic conductivity requires overcoming the limitations of solvent high viscosity; constructing a stable electrode interface necessitates utilizing the property of "selective decomposition" of electrolyte components; meanwhile, enhancing flame retardancy often comes at the cost of conductivity. More importantly, it is the critical bottleneck for the industrialization of next-generation high-energy-density batteries (such as high-nickel cathodes, silicon-based anodes, and lithium metal anodes), requiring specialized formulations to address specific pain points like high-voltage oxidation, significant volume expansion, and lithium dendrite growth. Ultimately, there is no "perfect" electrolyte, only the engineering-optimal solution found for a specific battery system and performance requirements, balancing conductivity, stability, safety, and compatibility.

The Path from Additives to a Safety Revolution

As lithium-ion battery energy density rises, the flammability of the carbonate-based electrolyte remains a critical safety bottleneck. This article provides a deep dive into electrolyte flame-retardant technology, positioning it as the key to an intrinsic safety revolution beyond external protection. It analyzes the limitations of traditional approaches and highlights the paradigm shift towards high-performance, multifunctional flame-retardant additives. Using the star additive PFPN (Ethoxy(pentafluoro)cyclotriphosphazene) as a prime example, the article details how its unique phosphazene structure enables a synergistic gas-phase and condensed-phase flame-retardant mechanismwith just 5% addition. Crucially, PFPN goes beyond safety: it enhances electrochemical performanceby forming stable SEI/CEI films, improving cycle life and compatibility with high-voltage cathodes. The analysis concludes that such additives, which integrate safety with performance enhancement, are evolving from optional to essential components for next-generation high-energy, high-safety batteries in EVs and energy storage.