I thank ASM for organising a technical discussion on lithium ion battery interconnects. A typical battery pack could contain anywhere from a couple to thousands of cells depending upon whether it's being used for consumer electronics or high power EVs. Battery chemistry requires different electrode materials and the same battery chemistry requires different current collectors at Cathode(Al) and Anode (Cu). This works for individual cells. During assembly however when the cells have to be connected in series or in parallel things break down. Because Al & Cu don't weld well and they suffer from galvanic corrosion, new material processing techniques are necessary to enable fast wiring of batteries. Cold cladding is an industry standard that has now proven itself. Copper and aluminum are cold welded at high pressures and they form an airtight atomic bond without any intermediate oxide/intermetallic layer on the Al side. This discussion highlighted Materions particular ...
11 June 2026 Earlier this June I had the pleasure of participating in two highly relevant discussions for accelerating the renewable energy adoption in the EU. The meeting on Renewable Energy Directive (RED III) implementation was focussed on policy changes required to achieve the goal. Whereas the meeting on grid resilience focussed more on the technical aspects that could actually make renewable energy work on a continental scale. [1-3] The Renewable Energy Directive proposed by the EU is now a law that the member states are required to enforce. But while the intent has been positive the actual implementation of the law has been lagging. The reasons could be many: slow bureaucracy, political opposition, conflicting goals, technological gaps and prioritisation of other pressing concerns. Member states have their own complex politics & their own issues to take care of before they can look at union directives. Now to overcome this challenge the union has adopted a carrot ...