以宁德时代、远景动力为首的“卷绕派”，再次将基于卷绕工艺的储能大容量电芯，推到一个全新高度。　

　4月1日，远景动力对外首次发布了全新一代、也是全球目前最大方壳卷绕储能专用电芯——790Ah 储能专用电芯。　

　电池中国从现场了解到，这款现阶段全球最大的卷绕储能电芯已经实现量产。　

  在这之前，几乎没有企业确认过，储能卷绕电芯，可以突破600+Ah。　　

后来，宁德时代对外发布了587Ah新一代储能电芯，也被部分媒体解读为，这种容量是卷绕的“极限”。　

　事实上，从目前各家企业发布的600+Ah容量来看，也多采取了叠片工艺。截至目前，包括欣旺达、亿纬锂能、中创新航、比亚迪、瑞浦兰钧、蜂巢能源等在内的20余家电芯企业，已布局了叠片电芯生产。　　

在大容量储能电芯上，“叠片派”显然占据了优势。　　

究其原因，要想把电芯做大，尺寸演进的唯一一个方向，就是进一步地做长，但卷绕电芯做到300mm以上，卷绕的难度瓶颈就会出现，就会越来越困难，卷芯超芯率会提高，循环过程中卷绕扭曲度会进一步增加，无论是对安全还是循环寿命，都要大打折扣的。　　远景储能产品总工程师徐中华在接受访谈时表示，行业普遍认为500+Ah是卷绕工艺极限，但远景通过三年以上系统性研发，从材料、工艺到装备、系统应用全链条验证，确认790Ah具备卷绕工艺落地条件。　　推出 790Ah 电芯绝非简单的容量竞赛，而是远景立足系统工程思维，统筹材料创新、工艺升级、智能装备、场站适配与电网友好性等多维角度，打磨出的系统级最优解。

远景动力此次实现790Ah卷绕大容量电芯的量产，无疑是打破了“587Ah卷绕极限论”，而这背后更是卷绕工艺的一次技术范式突围。

     01远景动力790Ah卷绕储能电芯背后的“黑科技”　

　 据电池中国了解，作为远景动力为新一代储能系统量身打造的标杆级产品，该790Ah储能专用电芯，单颗电芯带电量高达2528Wh，也就是一颗电芯“两度半”电，体积能量密度方面，该电芯也突破了440Wh/L。

      基于卷绕工艺，远景动力790Ah电芯，在循环寿命和可靠性上也拥有非常优异的表现：拥有15000次超长循环寿命，直流能量效率≥96.0%，能为储能电站全生命周期大幅降低度电成本。众所周知，卷绕电芯容量做大后，内部结构温差、内阻会出现不均情况，从而影响电芯寿命与可靠性，而远景动力790Ah的超长循环寿命，无疑颠覆了行业普遍认知。

　　作为 AI 研发与智能制造深度融合的标杆成果，远景 790Ah储能专用电芯依托超 6800 万条材料数据支撑，将新材料开发效率提升 70% 以上、测试周期缩短三分之二，彻底重构储能电芯研发逻辑。同时，针对大电芯制造难度高、一致性难把控的痛点，790Ah电芯实现制造全工序AI 智能管控，从核心工艺到成品检测全程精准把控，率先在沧州超级工厂实现规模化量产。　

　对于储能产品而言，安全永远是不可逾越的底线，尤其是作为行业首创，无迹可参照的全新超大容量790Ah卷绕电芯的安全挑战，远景动力自研高安全电解液，通过热梯度反应设计，让其在高温场景下实施梯度反应，使得电芯热失控时总产气量降低35%，峰值产气速率下降65%;结合定向排期散热通道，显著提升大电芯安全性，可以有效解决大电芯安全的挑战。　　

远景基于AI和独创技术，使得超大容量卷绕储能电芯的材料选型、电芯设计、产品开发周期大幅缩减，安全和寿命得到有效提升。

    02  12.5MWh储能系统，开启储能资产化时代

      作为储能系统的核心硬件底座，远景动力推出的卷绕790Ah方形储能电芯，绝非仅仅是在向行业传递具备做大电芯，突破卷绕“极限”的技术实力。　

　相反，这一尺寸、容量的电芯，是基于对系统全局，包括材料、工艺、装备、电网友好、场站友好、国家标准等多个方面，综合最优解的考虑，从而推衍和验算得到的新一代电芯尺寸和容量标准。　

　例如，在严苛的消防安全红线(单套设备占地控制在50平方米以内)与极致的BOP(系统配套)成本优化之间，搭载790Ah电芯的12.5MWh储能系统，不仅能显著缩减项目占地，相比传统5MWh储能系统方案，12.5MW/50MWh大子阵设计，可实现整站BOP节省超1500万元/GWh，安装调试效率提升30%以上。全链路系统及安全设计与全场景耐候设计，可保障储能系统在极端环境下，依旧能够安全稳定运行。　

    　同样的，在远景动力的整个理念和解决方案中，790Ah也并非单一产品能力的突破与创新，而是围绕“电芯—系统—能源管理—全生命周期服务”构建的完整链条，使电芯设计能够与储能系统及实际应用场景形成协同。　　

作为面向新型能源系统的新一代储能解决方案，远景12.5MWh AI储能系统，旨在应对高比例可再生能源与电力电子设备接入带来的波动性挑战。它以“天机”气象大模型与“天枢”能源大模型为核心驱动，通过构网智能体与交易智能体协同，实现硬件与AI决策的深度融合，赋予储能电站“预测-调度-交易-自学习”的全链路闭环能力，推动其从被动响应设备，进化为主动构网、自主交易的高价值资产，为构建可持续、智能、普惠的AI能源系统提供关键支撑。　　

   作为大容量电芯的首倡者，远景动力曾率先相继完成300+Ah、500+Ah大容量电芯的定义与量产。此次，远景790Ah产品一经发布，便斩获海外多家头部客户订单。　　

   全球化的产能布局，使得远景动力能够在行业率先实现最新一代产品落地，“相同品质，全球交付”。截至目前，远景动力在全球布局了7 座储能超级工厂，其中国内沧州、宜昌工厂以790Ah大电芯产品为主。　　

    写在最后：　

　远景动力的成功实践证明，500+Ah是传统卷绕工艺的极限，而非卷绕技术本身的终点。当AI加速材料与工艺的开发速度，缩短开发周期时，卷绕的容量上限可以被推得更高。　　更值得注意的是，远景动力并非单纯希望将卷绕工艺打破“极限”，推向新的高度，它是基于为储能打造“一整套从产品到资产的价值方案”理念，去倒推原有的产品和设计，从而为储能行业提供一种高可靠性、高经济性的全新选择。

The "winding faction" led by Ningde Times and Yuanjing Power has once again pushed the energy storage high-capacity battery cells based on winding technology to a new height. 

On April 1st, Yuanjing Power released for the first time a new generation and currently the world's largest square shell wound energy storage dedicated battery cell - the 790Ah energy storage dedicated battery cell. 


Battery China learned from the scene that the world's largest coiled energy storage battery cell has achieved mass production at present. 

　

Prior to this, almost no company had confirmed that energy storage coil cells could exceed 600+Ah


Later, Ningde Times released the 587Ah new generation energy storage battery cell to the public, which was also interpreted by some media as the "limit" of this capacity for winding. 


In fact, based on the current 600+Ah capacity released by various enterprises, they have also adopted the stacking process. As of now, more than 20 home battery cell companies, including Xinwangda, EVE Energy, Zhongchuang Chuanghang, BYD, Ruipu Lanjun, and Honeycomb Energy, have laid out the production of stacked battery cells. 


In high-capacity energy storage batteries, the "stacking faction" clearly has an advantage. 


The only direction for size evolution in order to make battery cells bigger is to further lengthen them. However, when winding battery cells to over 300mm, the difficulty bottleneck of winding will appear, which will become increasingly difficult. The rate of over core winding will increase, and the twisting degree of winding will further increase during the cycling process, which will greatly reduce both safety and cycle life. Xu Zhonghua, Chief Engineer of Far East Energy Storage Products, stated in an interview that the industry generally believes that 500+Ah is the limit of the winding process. However, through more than three years of systematic research and development, Far East has confirmed that 790Ah has the conditions for the implementation of the winding process, from materials, processes to equipment and system applications, through full chain verification. The launch of 790Ah battery cells is not a simple capacity competition, but a system level optimal solution polished from multiple perspectives, including material innovation, process upgrading, intelligent equipment, station adaptation, and grid friendliness, based on a system engineering mindset.


The mass production of 790Ah wound high-capacity battery cells by Far East Power undoubtedly breaks the "587Ah winding limit theory", and behind this is a technological paradigm breakthrough in winding technology.


01 Far East Power 790Ah Wind up Energy Storage Battery: The 'Black Technology' Behind It


According to Battery China, as a benchmark product tailored by Farview Power for the new generation of energy storage systems, this 790Ah energy storage dedicated battery cell has a single cell charge capacity of up to 2528Wh, which is equivalent to "two and a half degrees" of electricity per cell. In terms of volumetric energy density, this battery cell has also exceeded 440Wh/L.


Based on winding technology, Yuanjing Power's 790Ah battery cell also has excellent performance in cycle life and reliability: it has an ultra long cycle life of 15000 times, a DC energy efficiency of ≥ 96.0%, and can significantly reduce the cost of electricity per kilowatt hour for the entire life cycle of energy storage power plants. As is well known, as the capacity of wound battery cells increases, there will be uneven temperature differences and internal resistance in the internal structure, which will affect the life and reliability of the battery cells. However, the ultra long cycle life of Far East Power's 790Ah undoubtedly overturns the industry's common understanding.



As a benchmark achievement in the deep integration of AI research and intelligent manufacturing, the Far East 790Ah energy storage dedicated battery cell relies on over 68 million pieces of material data support to improve the efficiency of new material development by more than 70%, shorten the testing cycle by two-thirds, and completely reconstruct the logic of energy storage battery cell research and development. At the same time, in response to the pain points of high difficulty in manufacturing large battery cells and difficulty in controlling consistency, 790Ah battery cells have achieved AI intelligent control of the entire manufacturing process, from core technology to finished product inspection, and are the first to achieve large-scale production in the Cangzhou super factory. 


For energy storage products, safety is always the bottom line that cannot be crossed, especially for the safety challenge of the new ultra large capacity 790Ah wound battery cell, which is the first of its kind in the industry and has no trace to refer to. Yuanjing Power has independently developed a high safety electrolyte, and through the design of thermal gradient reaction, it can implement gradient reaction in high-temperature fields, reducing the total gas production by 35% and peak gas production rate by 65% when the battery cell loses control; Combined with directional scheduling heat dissipation channels, the safety of large battery cells is significantly improved, which can effectively solve the challenges of large battery cell safety. 


Based on AI and innovative technology, Farview has significantly reduced the material selection, cell design, and product development cycle of ultra large capacity wound energy storage cells, effectively improving safety and lifespan.


02 12.5MWh energy storage system, ushering in the era of energy storage assetization


As the core hardware base of the energy storage system, the coiled 790Ah square energy storage battery cells launched by Far East Power are not just conveying the technical strength of expanding battery cells and breaking through the "limit" of coiling to the industry. 


On the contrary, the size and capacity of this battery cell are based on a comprehensive consideration of the optimal solution from multiple aspects of the system, including materials, processes, equipment, grid friendliness, station friendliness, national standards, etc., in order to derive and verify the new generation of battery cell size and capacity standards. 


For example, between the strict fire safety red line (single equipment occupying less than 50 square meters) and the ultimate cost optimization of BOP (system matching), the 12.5MWh energy storage system equipped with 790Ah battery cells can not only significantly reduce project land occupation, but also achieve a savings of over 15 million yuan/GWh in BOP for the entire station compared to the traditional 5MWh energy storage system solution. The 12.5MW/50MWh large sub array design can improve installation and commissioning efficiency by more than 30%. The full chain system and security design, as well as the full scenario weather resistance design, can ensure that the energy storage system can still operate safely and stably in extreme environments. 


Similarly, in the entire concept and solution of Yuanjing Power, 790Ah is not a breakthrough or innovation in a single product capability, but a complete chain built around "battery cell system energy management full lifecycle services", enabling battery cell design to form synergy with energy storage systems and practical application scenarios. 


As a new generation energy storage solution for new energy systems, the Farview 12.5MWh AI energy storage system aims to address the volatility challenges brought by the high proportion of renewable energy and power electronic equipment integration. It is driven by the core of the "Tianji" meteorological model and the "Tianzhu" energy model, and achieves deep integration of hardware and AI decision-making through the collaboration of network building agents and trading agents. It endows energy storage power stations with the full chain closed-loop capability of "prediction scheduling trading self-learning", promoting their evolution from passive response devices to high-value assets of active network building and autonomous trading, and providing key support for building a sustainable, intelligent, and inclusive AI energy system. 


As the pioneer of high-capacity battery cells, Yuanjing Power has taken the lead in defining and mass producing 300+Ah and 500+Ah high-capacity battery cells. This time, once the Vision 790Ah product was released, it won orders from multiple top overseas customers. 


The global production capacity layout enables Far Eastern Power to take the lead in implementing the latest generation of products in the industry, delivering globally with the same quality. As of now, Far East Power has established 7 energy storage super factories worldwide, with domestic factories in Cangzhou and Yichang mainly producing 790Ah large battery cells. 


Write at the end:

The successful practice of Yuanjing Power has proven that 500+Ah is the limit of traditional winding technology, rather than the endpoint of winding technology itself. When AI accelerates the development speed of materials and processes and shortens the development cycle, the upper limit of winding capacity can be pushed higher. It is worth noting that Far East Power does not simply hope to break the "limit" of winding technology and push it to new heights. It is based on the concept of creating a "complete set of value solutions from products to assets" for energy storage, to reverse the original products and designs, and provide a new choice of high reliability and high economy for the energy storage industry.