Top all-time · #25906
Matthew J. Lacey
Personal blog · lacey.sesciencehardware
Matthew J. Lacey's personal blog at lacey.se covers science and hardware. Since 2019, 3 different Hacker News readers have linked it 5 times. It is still writing: the last post was on 2026-07-20, and you can follow it by feed.
Too few sampled comments (5) to say how often HN recommends it.?
Why HN links it
HN readers link Matthew Lacey's posts on the glass battery claims by Goodenough and Braga, and his energy density estimator app. Comments cite the posts as a source for critique of those claims.
Summarised by Claude from a sample of 5 HN comments that link here. Each comment is marked recommending, critical or neutral (citing without judging); how this works.
Most-linked posts?
- /2018/07/05/glass-battery-part-2/2 people · 3 mentions · first linked 2019-06-06
What Hacker News says?
there is some critique on previous papers[1] I would wait for an update from this blog to actually assess if these claims can hold water [1] http://lacey.se/2018/07/05/glass-battery-part-2/
Comment linking /2018/07/05/glass-battery-part-2/
on “A Glass Battery That Keeps Getting Better?”Goodenough didn't invent li-ion, he invented the cobalt oxide cathode that dominated the industry until nickel and iron cathodes came along. Goodenough is 97 years old and while he is still apparently sharp, he is not leading the lab that gets publicity under his name. From what I've seen he's more of a mentor. I, and many others[1], are extremely skeptical of the claims coming from that group. At best, they have be…
Comment linking /2018/07/05/glass-battery-part-2/
on “The Lithium Mine Buildup Is Outpacing the Electric-Car Boom”I'm torn on Goodenough's (and his other main author, Maria Helena Braga) academic contributions lately. They are doing a lot of investigation into glass electrolytes, something that is very important and potentially the future of li-ion. Sodium-ion batteries are also intriguing, although at this point it's questionable they'd be cheaper. Solid state batteries may eventually be much smaller (heavier, but more energy…
Comment linking /2018/07/05/glass-battery-part-2/
on “At 97, lithium-ion battery pioneer says his work is not done”I can't find a free version (much love to anyone who hosts) but Matt Lacey's energy density estimator is always good for situations like these: http://lacey.se/apps/cell-energy/
Comment linking /apps/cell-energy/
on “New Cobalt-free Li-ion battery reduces costs with similar design and performance”If that all sounds too good to be true, it's worth reading what other battery experts have to say about these claims. For example: > The ninth research paper in Braga and Goodenough's "glass battery" work regrettably shows many of the hallmarks of pathological science. ... ad hoc theory, violations of the laws of thermodynamics, basic mistakes, disregard for established knowledge, absent or invalid chemical characte…
Comment linking /2020/03/13/braga-goodenough-glass-battery-part-iii/
on “The data behind New York's increasingly dirty electricity peaks”