摘要：【中文】本发明公开了一种用于异质结高效电池PECVD舟结构，包括：舟片、卡座、固定杆和石英工艺管；多片所述舟片均与所述卡座平行且层叠设置，相邻两所述舟片设有间隔，并固定在所述固定杆上；所述固定杆一端与所述卡座固定，另一端通过螺母与顶层的舟片固定；所述舟片、所述固定杆和所述卡座组装后，设置在所述石英工艺管内；本发明舟结构采用非垂直方式进入石英工艺管内，无需卡点设计，依靠硅片自重同舟片紧密贴合，避免卡点印迹，增加了有效钝化面积，改善成品电池片外观问题；同时还可以避免绕镀，降低漏电风险，大大降低自动化取放片过程中，舟片同硅片表面之间的摩擦损伤。 【EN】The invention discloses a PECVD boat structure for a heterojunction high-efficiency battery, which comprises: the device comprises a boat sheet, a clamping seat, a fixed rod and a quartz process tube; the boat sheets are parallel to the clamping seat and are arranged in a stacked mode, and an interval is formed between every two adjacent boat sheets and is fixed on the fixing rod; one end of the fixed rod is fixed with the clamping seat, and the other end of the fixed rod is fixed with the boat sheet on the top layer through a nut; the boat piece, the fixing rod and the clamping seat are assembled and then arranged in the quartz process tube; the boat structure enters the quartz process tube in a non-vertical mode, the design of a clamping point is not needed, the boat is tightly attached to the boat sheet by the self weight of the silicon wafer, the imprinting of the clamping point is avoided, the effective passivation area is increased, and the appearance problem of a finished battery sheet is improved; meanwhile, the plating winding can be avoided, the electric leakage risk is reduced, and the friction damage between the boat piece and the surface of the silicon wafer in the automatic taking and placing process is greatly reduced.

摘要：【中文】本发明公开了一种串焊机异物清理机构，所述串焊机异物清理机构包括：光电感应装置、电磁继电器和吹气装置；所述光电感应装置安装于所述料盒导轨上，所述电磁继电器分别与所述光电感应装置和吹气装置电连接，所述吹气装置安装在所述串焊机本体上，且所述吹气装置的吹气口对准所述定位平台。本发明主要通过设置光电感应装置是否检测到金属反光片来确定是否需要对平台进行清理，一旦光电感应装置检测到金属反光片，立即通过继电器和电磁阀来控制气路的通断，通过节流阀来调节所吹出气体的风力，能够准确地将定位平台上的异物进行清理，保证了电池板焊接的过程中电池板的质量，提高了整个工艺的可靠性。 【EN】The invention discloses a foreign matter cleaning mechanism of a series welding machine, which comprises: the device comprises a photoelectric sensing device, an electromagnetic relay and a blowing device; the photoelectric sensing device is arranged on the material box guide rail, the electromagnetic relay is electrically connected with the photoelectric sensing device and the air blowing device respectively, the air blowing device is arranged on the stringer body, and an air blowing port of the air blowing device is aligned to the positioning platform. The invention mainly determines whether the platform needs to be cleaned by setting whether the photoelectric sensing device detects the metal reflector or not, once the photoelectric sensing device detects the metal reflector, the on-off of the air passage is immediately controlled by the relay and the electromagnetic valve, and the wind power of the blown air is adjusted by the throttle valve, so that the foreign matters on the positioning platform can be accurately cleaned, the quality of the battery panel in the welding process of the battery panel is ensured, and the reliability of the whole process is improved.

摘要：【中文】本发明公开了一种四分段式背电极背电场网版，包括：五主栅四分段结构的背电极和五主栅四分段结构的背电场，背电场对应套印覆盖于所述背电极上；其中，背电极与正面主栅位置对应，且被电极分为四段，每段长度为11±3mm。通过降低背电极长度，增加背电极宽度，增加背电极与背电场重叠面积，在不增加背银耗量的基础上，增加交接区额的银铝重叠面积，更好的改善背电极导电性能，大幅改善背银背铝的欧姆接触，从而大幅降低Rs，针对组件串焊机起焊位置的短板，背电极增加纵向露硅设计，可改善组件对应的组件虚焊，改善组件拉力与碎片率。 【EN】The invention discloses a four-segment back electrode back electric field screen printing plate, which comprises: the back electrode of the five-main-grid four-section structure and the back electric field of the five-main-grid four-section structure are correspondingly overprinted and covered on the back electrode; the back electrode corresponds to the front main grid in position and is divided into four sections by the electrode, and the length of each section is 11 +/-3 mm. Through reducing back electrode length, increase back electrode width, increase back electrode and back of the body electric field overlap area, on the basis that does not increase back of the body silver consumption, increase the silver-aluminum overlap area of cross-connection district amount, better improvement back electrode electric conductivity, improve the ohmic contact of back of the body silver back of the body aluminium by a wide margin to reduce Rs by a wide margin, to the short slab of subassembly stringer start welding position, the back electrode increases vertical dew silicon design, can improve the subassembly rosin joint that the subassembly corresponds, improve subassembly pulling force and debris rate.

摘要：【中文】本发明公开了一种改善组件虚焊的四分段背电极背电场网版，与正面电极对应设置，包括正面电极，包括：背电极面板和背电场面板，背电极面板和背电场面板均为五主栅结构，背电极面板包括设置在主栅线上的背电极，背电场面板包括设置在主栅线上的背电场，且背电极和背电场均分为四段；背电极位置与正面电极位置相对应，背电场对应套印覆盖于背电极上；每段背电场的两端均设置有端部镂空。本发明通过使用该镂空的背面图形设计，可降低背银背铝纵向局部区域的背铝湿重，减小由于背银背铝纵向叠加，造成的背银背铝高度差，从而有效改善由于背银背铝高度差造成焊带难以与背银良好接触导致组件虚焊的情况。 【EN】The invention discloses a quarter-segment back electrode back electric field screen printing plate for improving assembly cold joint, which is arranged corresponding to a front electrode, comprises the front electrode and comprises: the back electrode panel and the back electric field panel are both of a five-main-grid structure, the back electrode panel comprises back electrodes arranged on main grid lines, the back electric field panel comprises back electric fields arranged on the main grid lines, and the back electrodes and the back electric fields are equally divided into four sections; the position of the back electrode corresponds to the position of the front electrode, and the back electric field correspondingly overlaps and covers the back electrode; both ends of each section of back electric field are provided with end parts hollowed out. According to the invention, through the hollow back pattern design, the back aluminum wet weight of the back silver back aluminum longitudinal local area can be reduced, and the back silver back aluminum height difference caused by back silver back aluminum longitudinal superposition can be reduced, so that the condition of assembly false soldering caused by the fact that a solder strip is difficult to contact with the back silver well due to the back silver back aluminum height difference can be effectively improved.

摘要：【中文】本发明公开了一种异质结太阳电池及其制备工艺，异质结太阳电池包括：N型单晶硅片、本征非晶硅膜层一、N型非晶硅膜层、本征非晶硅膜层二、P型非晶硅膜层、导电性薄膜层和金属电极，N型单晶硅片的正面依次沉积本征非晶硅膜层一、N型非晶硅膜层，N型单晶硅片的背面依次沉积本征非晶硅膜层二、P型非晶硅膜层；本征N型非晶硅层和本征P型非晶硅层的外侧均沉积有导电性薄膜层，导电性薄膜层的外侧均印刷有金属电极。本发明导电性薄膜层结构导电层面积较大，掩膜区域宽度较小，且不容易出现绕镀的现象，不会覆盖N型硅片的边缘导致异质结短路，不需要考虑短接导致漏电流过高的情况，从而有利于提升异质结太阳能电池的转换效率。 【EN】The invention discloses a heterojunction solar cell and a preparation process thereof, wherein the heterojunction solar cell comprises: the N-type monocrystalline silicon piece, the intrinsic amorphous silicon film layer I, the N-type amorphous silicon film layer, the intrinsic amorphous silicon film layer II, the P-type amorphous silicon film layer, the conductive thin film layer and the metal electrode are sequentially deposited on the front side of the N-type monocrystalline silicon piece, the intrinsic amorphous silicon film layer I and the N-type amorphous silicon film layer are sequentially deposited on the back side of the N-type monocrystalline silicon piece, and the intrinsic amorphous silicon film layer II and the P-type amorphous silicon film layer are sequentially deposited on the back side of the N; and conductive thin film layers are deposited on the outer sides of the intrinsic N-type amorphous silicon layer and the intrinsic P-type amorphous silicon layer, and metal electrodes are printed on the outer sides of the conductive thin film layers. The conductive layer of the conductive thin film layer structure has larger area and smaller width of the mask area, is not easy to generate the phenomenon of winding plating, can not cover the edge of an N-type silicon wafer to cause heterojunction short circuit, does not need to consider the condition of high leakage current caused by short circuit, and is favorable for improving the conversion efficiency of the heterojunction solar cell.

摘要：【中文】本发明公开了一种异质结太阳能电池的制绒清洗方法，依次包括如下步骤：对硅片进行预清洗，粗抛和制绒，绒面圆滑处理，碱清洗，酸清洗，DHF清洗，烘干。本发明清洗方法将碱清洗调整至圆滑处理后，由于圆滑处理使用酸洗，酸洗后增加碱清洗，可以中和清洗前续酸洗残留液，并且可通过轻微腐蚀方式将前续形成的印记去除。通过此优化制绒工艺，可达到最佳清洗效果，有效的降低EL不良率，并提高了异质结电池的Voc和FF。 【EN】The invention discloses a texturing and cleaning method of a heterojunction solar cell, which sequentially comprises the following steps: pre-cleaning, rough polishing and texturing, smooth treatment of a suede, alkali cleaning, acid cleaning, DHF cleaning and drying are carried out on the silicon wafer. The cleaning method adjusts the alkali cleaning to the smooth treatment, and the acid cleaning is used in the smooth treatment, so that the alkali cleaning is added after the acid cleaning, the residual liquid of the acid cleaning before the cleaning can be neutralized, and the marks formed in the previous step can be removed in a slight corrosion mode. By optimizing the texturing process, the optimal cleaning effect can be achieved, the EL reject ratio is effectively reduced, and the Voc and FF of the heterojunction battery are improved.

摘要：【中文】本发明公开了一种太阳能电池板正面网版，包括：主栅线，以及垂直于所述主栅线设置的细栅线；所述主栅线印刷在电池片正表面，为分段式设计，分段中间空白区内设置有至少一个与主栅材质一致的连接点。所述主栅线至少为一根，分段至少为五段，每段长度为2‑20mm。所述主栅线长度为150mm‑180mm，宽度为0.4mm‑0.8mm，所述主栅线间间距为25mm‑35mm。所述空白区间间隔为2mm‑20mm，所述空白区长度为4‑20mm，宽度为0.1mm‑0.3mm，所述连接点长度为0.3mm‑1mm。所述细栅线长度为150mm‑180mm，宽度为0.018mm‑0.040mm，所述细栅线间间距为1.2mm‑2mm。所述主栅线之间为平行设置，所述细栅线之间为平行设置。 【EN】The invention discloses a solar cell panel front screen printing plate, which comprises: the grid line structure comprises main grid lines and thin grid lines perpendicular to the main grid lines; the main grid lines are printed on the front surface of the battery piece and are designed in a sectional mode, and at least one connecting point which is made of the same material as the main grid lines is arranged in the blank area in the middle of the section. The number of the main grid lines is at least one, the number of the main grid lines is at least five, and the length of each main grid line is 2-20 mm. The length of the main grid lines is 150mm-180mm, the width of the main grid lines is 0.4mm-0.8mm, and the distance between the main grid lines is 25mm-35 mm. The blank interval is 2mm-20mm, the blank length is 4-20mm, the width is 0.1mm-0.3mm, and the connection point length is 0.3mm-1 mm. The length of the thin grid lines is 150mm-180mm, the width of the thin grid lines is 0.018mm-0.040mm, and the space between the thin grid lines is 1.2mm-2 mm. The main grid lines are arranged in parallel, and the fine grid lines are arranged in parallel.

摘要：【中文】本发明公开了一种异质结切片电池的制备方法，所述制备方法包括：在非晶硅膜层沉积、TCO透明导电膜层沉积过程中，通过设置若干个细条的方式进行局部遮挡，细条通过卡扣方式固定至载板上载盘边缘，制备具有局部遮挡区域的异质结电池片；切割所述局部遮挡区域，得到异质结切片电池。本发明的制备方法通过在切片位置进行局部遮挡，不会对异质结核心结构进行损伤，从而降低切片裂片过程导致的效率损失。 【EN】The invention discloses a preparation method of a heterojunction slice battery, which comprises the following steps: in the processes of amorphous silicon film layer deposition and TCO transparent conductive film layer deposition, local shielding is carried out in a mode of arranging a plurality of thin strips, the thin strips are fixed to the edge of a carrier plate loading disc in a buckling mode, and a heterojunction battery piece with a local shielding area is prepared; and cutting the local shielding area to obtain the heterojunction slice battery. According to the preparation method, the local shielding is carried out at the slicing position, so that the heterogeneous tuberculosis core structure is not damaged, and the efficiency loss caused by the slicing and splitting process is reduced.

摘要：【中文】本发明提供了一种多晶硅片制绒的制绒液，由下述重量百分比的原料组成：HNO₃50％‑55％，HF12％‑17％，添加剂0.5％‑0.7％，余量水；添加剂由下述重量百分比的原料组成：CH₃COOH1％‑20％，H₃PO₄1％‑20％，H₂SO₄1％‑20％，余量水。制备方法包括将多晶硅片置于制绒液中反应，反应温度为8℃‑12℃，反应时间为30‑60s，控制制绒腐蚀量为0.24‑0.26g/pcs。本发明通过不断优化制绒工艺，当制绒腐蚀量控制在0.24‑0.26g/pcs时，产线兼容、绒面优良，电池片外观无异常，成品电池片转换效率得到了提高，在电池片表面形成小而均匀的绒面，降低绒面的反射率，减少化学品的使用，节约成本。 【EN】The invention provides a texturing solution for texturing a polycrystalline silicon wafer, which consists of the following raw materials in percentage by weight: HNO₃50-55%, HF 12-17%, additive 0.5-0.7%, and balance water; the additive comprises the following raw materials in percentage by weight: CH (CH)₃COOH1％‑20％，H₃PO₄1％‑20％，H₂SO₄1 to 20 percent of the total weight of the composition and the balance of water. The preparation method comprises the steps of placing the polycrystalline silicon wafer into the texturing solution for reaction, wherein the reaction temperature is 8-12 ℃, the reaction time is 30-60s, and the texturing corrosion amount is controlled to be 0.24-0.26 g/pcs. According to the invention, by continuously optimizing the texturing process, when the texturing corrosion amount is controlled to be 0.24-0.26g/pcs, the production line is compatible, the texture is excellent, the appearance of the battery piece is not abnormal, the conversion efficiency of the finished battery piece is improved, and small particles are formed on the surface of the battery pieceAnd the uniform suede reduces the reflectivity of the suede, reduces the use of chemicals and saves the cost.