Joining Battery Tabs

By Dave Speth on Tuesday, September 27th, 2011 in Advanced Energy. 1 Comment

As the vehicle market for advanced batteries develops, companies are realizing that new joining technology approaches are needed. Anecdotally, we have been told that the yield of good battery packs is often too low to be profitable long term. For the past six months a team of engineers at EWI have been using a DepartmentRead more


Is the Nuclear Regulatory Commission Overworked?

By Dave Speth on Wednesday, March 2nd, 2011 in EWI – Company. No Comments

I had the chance to attend a professional conference (The Adhesion Society-we stick together) last week that had no relationship to the nuclear industry. During the conference, I had some free time to walk around historic Savannah, Georgia. Since the weather was substantially warmer than it has been in Ohio this winter, it was aRead more


Rising above the storm

By Dave Speth on Saturday, February 12th, 2011 in EWI – Company. No Comments

As I was wandering around the Internet this week, I noted several posts on www.nucleartownhall.com indicating that there is a lot of discussion about nuclear energy in both the public press and in state legislatures across the country. Legislatures in Kentucky and Minnesota are working on bills to lift the moratorium on construction of nuclearRead more


Small Steps Forward

By Dave Speth on Friday, January 21st, 2011 in EWI – Company. No Comments

When I was on vacation in Atlanta over the holidays, I noted a very short article in the Atlanta Journal-Constitution that pointedly noted that Georgia ratepayers would start paying for the new Vogtle reactors starting this month. The ability to start recovering construction costs while construction is underway helps the utility decrease the financial riskRead more


Supply Chain Issues Starting to Bite

By Dave Speth on Thursday, January 13th, 2011 in EWI – Company. No Comments

Supply chain issues starting to bite As I scanned nuclear industry related blogs this week, I noted a report that the Chinese are facing a slowdown in their aggressive construction program because their domestic nuclear supply chain does not have sufficient capacity to supply the demand. This could be important for the North American supplyRead more


New Study: Joining Processes for Assembly of Battery Cells and Packs

By Dave Speth on Saturday, June 26th, 2010 in Advanced Energy. 1 Comment

Assembly of battery packs and solar cell arrays requires joining multiple thin metal layers in a single step. In some cases, different metals must be joined to make a good electrical connection. This connection must also be mechanically robust to provide acceptable long-term performance. There are four joining processes that have been used for thisRead more