Henkel’s novel electrically conductive adhesive is designed for next-gen solar device assembly

Share on facebook
Facebook
Share on twitter
Twitter
Share on linkedin
LinkedIn
Share on reddit
Reddit
Share on email
Email

Henkel Adhesive Electronics has developed a series of ECAs (electrically conductive adhesives) designed to facilitate lower-cost, improved reliability and process-friendly assembly of solar devices. The LOCTITE ABLESTIK ICP 8000 series ECAs have been designed to elevate module performance and accommodate various assembly processes including cell interconnect ribbon bonding and shingled solar modules.

Problem

More challenging solar cell processing due to thinner wafers and emerging new cell designs has illuminated the need for an evolution in electrical interconnect materials. This in combination with the cost pressures facing solar technology manufacturers, as well as the requirement for increased module power output, has driven the development of Henkel’s latest line of next-generation electrically conductive adhesives.

Solution

LOCTITE ABLESTIK ICP 8000 is a series of ECAs designed specifically for the demands of solar cell interconnect and in-use module performance. With a very low cost per watt, the new Henkel ECAs are among the most economical materials on the market. The formulations also offer exceptional processing and performance characteristics, including compatibility with wafer thicknesses of less than 160 µm; fast printing and dispensing capability at speeds of greater than 200 mm per second; and full curing in less than 20 seconds at low temperatures between 110°C and 150°C, allowing maximum UPH and improving in-line inspection and yields.

Applications

For both shingle stacking and ribbon bonding cell interconnect techniques, the new Henkel materials offer a more flexible solution than solder, absorbing the stress associated with CTE mismatches for improved reliability. LOCTITE ABLESTIK ICP 8000 series materials are compatible with all cell architectures including PERC, n-PERT, HJT and third-generation photovoltaic cells, and are available in all regions globally.

Platform

LOCTITE ABLESTIK ICP 8000 series materials offer for cell interconnect ribbon bonding: reliable tabbing with wafer thicknesses below 160 μm and is designed for both Ag, Sn and SnPb ribbon. It has 1.2 N/mm+ peel strength on all common ribbon types and 200+ mm/sec. print speeds and < 30 sec. cure at 120°C, < 10 sec. cure at 150°C, making the 8000 series compatibility with heterojunction and third-generation cell architectures. For shingled solar modules the 800 series offers 200+ mm/sec. dispense and print speeds and < 30 sec. cure at 120°C, < 10 sec. cure at 150°C, which can be optimized on equipment vendor’s tools. The company provides complete engineering guides and technical expertise for all application methods available.

Availability

Available in all regions for immediate sampling and high-volume production. 

Read Next

May 17, 2022
A total of 122 modules types from 25 manufacturers have been named as “Top Performers” by PV Evolution Labs (PVEL) in its 2022 Module Reliability Scorecard, with some ‘best ever results’ in certain categories and more powerful modules being offset by poor performance in others areas.
PV Tech Premium
May 11, 2022
PV Tech Premium speaks with BIPV company SunStyle about their expansion into the US market and how they believe the time is right for the technology in the US.
May 4, 2022
Following the launch of its heterojunction module series in April, Carrie Xiao speaks to Risen Energy to get the inside track on the manufacturer’s technology approach and manufacturing plans as it backs HJT to deliver n-type efficiencies on a PERC budget
May 2, 2022
US thin-film manufacturer First Solar recorded a US$43.3 million loss in its Q1 2022 mostly caused by a drop in sales, with the company expecting a “challenging 2022 from an earning standpoint” given ongoing supply chain constraints.
April 27, 2022
Solar polysilicon and cell manufacturer Tongwei has stated plans to significantly increase its manufacturing capacity over the next four years after confirming a six-fold increase in net profit in Q1 2022.
April 13, 2022
Origis Energy has ordered 750MW of solar modules from thin film manufacturer First Solar, bringing the total quantity of modules Origis has procured from the company to 1.5GW.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
June 14, 2022
Napa, USA
Solar Media Events
October 4, 2022
New York, USA