激光技术—引领光储能源转型的核心工艺!
中国正进入一个全新的且富有绝对想象空间的新能源(光储能源)大时代,出于业务拓展的需要,以及打通新能源产业链上下游的考量,越来越多的新能源企业开始逐鹿储能赛道,以实现源网荷储一体化和新能源系统的协同发展,拉动业绩持续增长,它们将共同推动中国走向碳中和的星辰大海。
随着新能源制造产线向极简化、集成化、一体化和智能化升级,激光加工有着高效率、高精度、低能耗、材料变形小、易控制等优点,更加顺应新能源行业智能制造、极限制造的大潮流,在稳定性、制造效率、生产成本、空间率、生产质量等方面发挥重要作用。为制造产线降本增效带来一定的提升,实现新能源时代大规模量产的极限智造。
利元亨激光—技术立业,持续引领!
利元亨于2015年布局激光应用,下设激光研究院、激光工程中心,致力于研发激光工艺技术,激光定制化设备,为新能源及泛半导体等行业提供一站式激光应用整体解决方案。利元亨自主研发的高效制程激光工艺,己获得多家头部企业的认可!
在锂电,利元亨早已实现方壳、圆柱、软包三种不同电池激光工艺的全覆盖,其中锂电池激光焊接更多次被评为“国际先进水平”,并不断推出针对锂电池制造迭代的优质激光解决方案。
在7月11-13日慕尼黑上海光博会上将推出固态电池激光切割解决方案、振镜飞行焊接技术、激光在线跟踪检测技术等一系列创新激光应用解决方案。其中,振镜飞行焊接技术为方壳、46系大圆柱电池等生产工艺上大幅提高焊接效率,降低设备投入成本,起到关键作用。目前,此技术已应用于头部企业量产。
在光伏,已形成较为完整的光伏激光加工设备,工艺涵盖:TOPCon、HJT、钙钛矿电池所需的激光消融、激光磷掺杂、激光硼掺杂、高速激光无损划片、激光开槽、激光薄膜划线、激光清边等设备。其中通过与客户联合开发的激光掺杂系统,实现功率更高,能量更均匀,更稳定,可在电极和发射极之间形成更良好的欧姆接触,降低金属电极与衬底的接触电阻,实现低损伤、掺杂能力强等技术特点,进一步提升电池转换效率。
在氢能与新能源汽车电控、电机等方面均有相关的前瞻布局和前沿技术开发,拥有金属双极板激光焊接、Hair-pin激光焊接等解决方案。
核心专机—不断突破,创造更多极限!
刀片电池周边焊
对激光焊接铝合金的焊接拐角缺陷产生进行机理分析,并综合考虑机构刚性、结构重心、高速动态稳定性及精度等因素,采用PSO(位置同步输出)激光能量控制技术,可在焊接速度变化处、直线焊接段和弧角焊接段,实现激光能量均匀作用在待焊接物体上的自适应控制,完成高速稳定的激光焊接,使整体焊缝均匀一致,解决焊接过程中因拐角速度不均匀造成焊接质量不稳定的行业难题。
利元亨PSO激光控制技术,将行业稳定运行的锂电池顶盖封口焊接速度从200mm/s提升到300mm/s以上,效率提升50%,产品良率达到99.5%以上,可提供卧式侧焊、立式侧焊、顶盖旋转焊接、顶盖双边同时焊接等多种焊接结构,满足客户定制化需求。另外,利元亨PSO激光控制技术搭配环形光斑激光器和双波长激光器方案已成功进入锂电池生产头部企业。
方壳电池模组飞行焊接
通过激光振镜飞行焊接技术,配套6000w环形激光器,可同时完成三维工件不同幅面工艺加工,减少加工时间;整体效率提升30%。飞行焊接速度可达80-100mm/s,重复定位精度±0.05mm; 测试熔深0.3mm-1.5mm,拉力测试强度≥1000N。
高速全极耳激光切卷一体机
利元亨极耳模切支持不同切割工艺:等长-无废料边-直切/斜切、等长不等间距-去废料边-直切、等长不等宽-无废料边-直切等,最高匹配动态加工速度可达150m/min,极耳宽精度:≤±0.1mm,切割毛刺:纵向≤7μm、横向≤14μm,热影响区:正极<50μm、负极<80μm。
集流盘飞行焊接
利元亨在圆柱电池集流盘焊接环节采用采用转塔飞行焊接技术,焊接速度>300mm/s,焊接拉力>100N,焊接残留>80%,创新性多工位分段式激光加工可实现单机产能≥300PPM,同时具备焊接质量在线检测,集流盘与极组压力在线监控功能。可有效解决在焊接过程中集流盘易与极组的端面发生焊穿伤隔膜造成短路等问题,使用自研飞行控制系统,可达到整系统±0.1mm的飞行重复定位精度,保证高效焊接时序的同时,精益求精的6σDOE实验数据采集能够确保激光焊接的质量和稳定性。同时,还提供焊穿、炸点、温度过高损伤隔膜等问题的在线检测以及焊后倒立除尘,强化除尘效果,有效清除过程中产生的金属碎屑、粉尘,避免短路。
TOPCon硼掺杂
利元亨硼掺杂中试线设备指标参数:应用于TOPCon电池高速激光硼掺杂技术及设备,采用高功率高速激光方案进行topcon电池硼元素重掺杂,设备产能达到8500片/小时,光电转化率大于0.2%,满足幅面220mm*220mm,可兼容230mm*230mm。
固态电池——负极锂金属切割技术
固态锂金属电池可以直接缩小电池体积,并且在短时间内快速充电,生命周期内可循环超过1万次,并且可持续使用二十年。其中金属锂独特的理化特性极大地提升了其工业制造难度。利元亨激光切割金属锂片技术可以实现无接触,高效高精度切割,避免锂片切割造成变形问题,利用高效脉冲激光器切割,可以有效减小热影响区和切口毛刺,为固态锂金属电池工业化提供助力。
未来布局—不断突破,创造更多极限!
利元亨/舜元激光现已完成锂电激光加工包括焊接、切割、清洗等工艺技术全布局,公司战略转移光伏、氢能等领域中,在已有激光技术基础上,进一步开发激光转印、激光修复技术,加速光伏领域的降本增效,为“低碳、可持续能源”技术发展继续做贡献。
1、Laser technology - the core process leading the transformation of laser & energy storage
China is entering a new and imaginative era of new energy (laser & energy storage). In order to expand its business and connect the upstream and downstream of the new energy industry chain, more and more new energy enterprises are competing in the energy storage market to achieve the integration of energy, network, load, and storage, and the coordinated development of new energy systems, driving sustained performance growth. They will drive China towards a carbon-neutral sea of stars together.
With the upgrading of new energy manufacturing production lines towards extreme simplification, integration, and intelligence, laser processing has the advantages of high efficiency, high precision, low energy consumption, small material deformation, and easy control. It is more in line with the trend of intelligent manufacturing and extreme manufacturing in the new energy industry, and plays an important role in stability, manufacturing efficiency, production cost, space utilization, production quality, and other aspects. It will bring a certain improvement to the cost reduction and efficiency increase of the manufacturing production lines, and realize the extreme intelligent manufacturing of large-scale mass production in the new energy era.
2、Lyric Laser - Technology Established, Continuously Leading
Lyric laid out laser applications in 2015, with a laser research institute and laser engineering center, dedicated to researching and developing laser technology, customizing laser products, and providing one-stop laser application solutions for industries such as new energy and pan semiconductors. The efficient process laser technology independently developed by Lyric has been recognized by multiple leading enterprises!
In the lithium-ion battery industry, Lyric has already achieved full coverage of laser processes for three different battery types: prismatic, cylindrical and pouch. Among them, lithium-ion battery laser welding has been rated as "international advanced level" for more times, and has continuously launched high-quality laser solutions for lithium-ion battery manufacturing iterations.
We have a relevant forward-looking layout and cutting-edge development in hydrogen energy and new energy vehicle electric control, e-motor and other aspects, and metal bipolar plate laser welding solutions, as well as hair pin laser welding solutions.
3、 Core Special Machines - Continuously Breaking Through and Creating More Upper Limits
01 Blade battery edge welding
This paper analyzes the mechanism of the welding corner defect of laser welding aluminum alloy, and comprehensively considers the factors such as the rigidity of the mechanism, the center of gravity of the structure, high-speed dynamic stability and accuracy. Using the PSO (position synchronous output) laser energy control technology, it can realize the adaptive control of the laser energy evenly acting on the object to be welded at the welding speed change, linear welding section and arc angle welding section, and complete high-speed and stable laser welding, making the overall weld seam uniform and consistent, solving the industry problem of unstable welding quality caused by uneven corner speed during the welding process.
Lyric PSO laser control technology has increased the sealing and welding speed of the lithium-ion battery top cover, which is stable in the industry, from 200mm/s to over 300mm/s. The efficiency has been improved by 50%, and the product yield has reached over 99.5%. It can provide various welding structures such as horizontal side welding, vertical side welding, top cover rotating welding, and simultaneous welding of both sides of the top cover to meet customer customization needs. In addition, Lyric's PSO laser control technology, combined with ring spot laser and dual wavelength laser solutions, has successfully entered the forefront of lithium-ion battery production.
02 Prismatic battery module flight welding
By using laser galvanometer flight welding technology and supporting a 6000W ring laser, it is possible to simultaneously process three-dimensional workpieces in different formats, reducing processing time; Overall efficiency increased by 30%. The flight welding speed can reach 80-100mm/s, and the repeated positioning accuracy is ± 0.05mm; The test penetration depth is 0.3mm-1.5mm, and the tensile test strength is ≥ 1000N.
03 High speed full-tab laser cutting and winding integrated machine
Lyric tab notching supports different cutting processes: equal length - no waste edge - straight/oblique cutting, equal length and unequal spacing - no waste edge - straight cutting, equal length and unequal width - no waste edge - straight cutting, etc. The maximum matching dynamic processing speed can reach 150m/min, tab width accuracy: ≤ ± 0.1mm, cutting burrs: longitudinal ≤ 7 μ m. Horizontal ≤ 14 μm. Heat affected zone: anode < 50 μm, cathode < 80 μm.
04 Collecting Plate Flight Welding
The welding process of the cylindrical battery collector plate adopts flight welding technology, with a welding speed of>300mm/s, welding tension of>100N, and welding residue of >80%. This can effectively solve the problem of short circuit caused by welding damage to the separator between the collector plate and the end face of the jelly roll during the welding process. By using a self-developed flight control system, the system can achieve a flight repeat positioning accuracy of ± 0.1mm, ensuring efficient welding timing while striving for excellence σ DOE experimental data acquisition can ensure the quality and stability of laser welding. At the same time, it also provides online inspection of issues such as welding penetration, explosion points, and damage to the separator due to high temperature. It also provides inverted dust removal after welding, enhancing the dust removal effect, effectively removing metal debris and dust generated during the process, and avoiding short circuits.
05 TOPCon boron doping
Index parameters of Lyric boron doping pilot line equipment: applied to TOPCon battery high-speed laser boron doping technology and equipment, using a high-power high-speed laser scheme for boron element re doping in Topcon batteries. The equipment has a production capacity of 8500 pieces/hour, a photoelectric conversion rate greater than 0.2%, and meets the requirements of a width of 220mm * 220mm, compatible with 230mm * 230mm.
06 Solid-state battery - cathode lithium metal cutting technology
Solid state lithium metal batteries can directly reduce battery size and quickly charge in a short period of time. They can be cycled over 10,000 times during their lifespan and can last for 20 years. The unique physical and chemical properties of metallic lithium greatly enhance its industrial manufacturing difficulty. The Lyric laser cutting technology of lithium metal sheet can achieve non-contact, efficient and high-precision cutting to avoid the deformation problem caused by the cutting of lithium sheet. The use of efficient pulsed laser cutting can effectively reduce the heat affected zone and notch burrs, and provide assistance for the industrialization of solid lithium metal batteries.
4、 Future Layout - Continuously Breaking Through and Creating More Upper Limits
Lyric/Shunyuan Laser has completed the full layout of lithium-ion battery laser processing technology, including welding, cutting, cleaning, and other processes. The company has strategically transferred to the fields of photovoltaic and hydrogen energy, and further developed laser transfer printing and laser repair technology on the basis of existing laser technology, accelerating cost reduction and efficiency increase in the photovoltaic field, and continuing to contribute to the development of "low-carbon and sustainable energy" technology.