Christian Science Monitor: The US is a late entry, but new domestic projects are revving to go.
Worldwide race to make better batteries
No TrackBacks
TrackBack URL: http://blogs.physicstoday.org/mt/mt-tb.cgi/3139
Search
Categories
- Acoustics (20)
- Arms control and military physics (167)
- Astronomy and cosmology (890)
- Atomic physics (12)
- Biography and personalities (34)
- Biological physics (155)
- Business and industry (298)
- Careers and employment (5)
- Chemical physics and molecular physics (85)
- Classical mechanics and electromagnetism (2)
- Commentary and opinion (101)
- Computational physics (92)
- Condensed matter (119)
- Crystallography (1)
- Culture and entertainment (8)
- Earth sciences (25)
- Education (287)
- Energy policy and R&D (456)
- Engineering and technology (705)
- Environment and climate change (720)
- Everyday Physics (414)
- Facilities and laboratories (210)
- Fluids and rheology (4)
- Government agencies (289)
- History, sociology, and philosophy (52)
- Instrumentation (4)
- Materials science (78)
- Medical physics (98)
- Metrology and fundamental constants (1)
- Microscopy
- Nanoscale science and technology (106)
- Nonlinear science and emergent phenomena
- Nuclear and particle physics (21)
- Optics and photonics (12)
- Planetary and space science (529)
- Plasma physics (2)
- Publishing (4)
- Quantum physics and information (102)
- Science and society (715)
- Science policy and politics (803)
- Scientific societies and awards (4)
- Semiconductors and electronics
- Statistical physics and thermodynamics
- Theoretical physics (1)
Monthly Archives
- November 2011 (13)
- October 2011 (63)
- September 2011 (66)
- August 2011 (70)
- July 2011 (56)
- June 2011 (69)
- May 2011 (84)
- April 2011 (84)
- March 2011 (93)
- February 2011 (76)
- January 2011 (78)
- December 2010 (72)
- November 2010 (77)
- October 2010 (82)
- September 2010 (72)
- August 2010 (88)
- July 2010 (83)
- June 2010 (89)
- May 2010 (81)
- April 2010 (87)
- March 2010 (89)
- February 2010 (74)
- January 2010 (74)
- December 2009 (83)
- November 2009 (81)
- October 2009 (79)
- September 2009 (82)
- August 2009 (88)
- July 2009 (86)
- June 2009 (91)
- May 2009 (81)
- April 2009 (98)
- March 2009 (97)
- February 2009 (80)
- January 2009 (64)
- December 2008 (68)
- November 2008 (65)
- October 2008 (93)
- September 2008 (98)
- August 2008 (110)
- July 2008 (97)
- June 2008 (117)
- May 2008 (122)
- April 2008 (103)
- March 2008 (106)
- February 2008 (87)
- January 2008 (94)
- December 2007 (82)
- November 2007 (96)
- October 2007 (98)
- September 2007 (93)
- August 2007 (98)
- July 2007 (91)
- June 2007 (83)
- May 2007 (89)
- April 2007 (87)
- March 2007 (88)
- February 2007 (81)
- January 2007 (89)
- December 2006 (80)
- November 2006 (80)
- October 2006 (89)
- September 2006 (80)
- August 2006 (92)
- July 2006 (76)
- June 2006 (91)
- May 2006 (83)
- April 2006 (60)
It is nice to see that the United State Government, in general, realizes that a profound and far reaching technology needs to be addressed for our national and economic security and that it is openly talked about rather then being of the often classified nature of revolutionary technology programs. Some such programs with a great degree of classification are the DOE/Naval Reactor projects which have and continue to produce excellent nuclear powered submarines for the U.S. Navy, the development of the Advanced Tactical Fighter plane, the B2 Stealth Bomber, and others.
However, the desired high mass specific energy storage density batteries commensurate with running cars for 250 miles between charges, may, if coupled industrially with solar and wind powered electrical energy generating stations, end up being just as important for our national security if not more so, then the major military R&D efforts such as the one I mentioned above.
It is interesting to consider just how far we could go in storing electrochemical energy within the paradigms of 20th/Early 21st century physics. Take for instance the hydrogen atom which has a lower mass than all of the other elements, and the element Flourine, which is the most electronegative of elements. If some sort of stable batterg technology could be developed using these two elements, a hard challenge since ordinarilly, if liquid hydrogen and liquid flourine combine, the result is a more exothermic reaction than the combustion of liquid oxygen and liquid hydrogen, then perhaps battery packs could be designed to permit as much as a few thousand miles on a single charge according to some researchers in this field as of a couple of decades ago. Obviously, this never came to fruition. However, such energy storage density would permit electric helicopters, electric propeller driven aircraft, electric tractor trailors, electric buses; and for the military, electric powered gunships, long duration electromagnetic rail gun tanks, etc., thus revolutionizing to an unprecedented degree our wheeled vehicles and airtravel industry.
Applications of such long endurance batteries would be excellent for cell phones, laptop and note book computers, household emergency energy capacity incase the utility grid gets wacked by warfare, terrorism, or by natural causes, and perhaps among the most fun of all for a person like me who a few years ago bought a 10 million candle power hand held spot light, long endurance very powerful hand held spotlights and flashlights.
Could we go even further beyond this seemingly Hydrogen Flourine upper limit to electrochemical energy storage density in the form of any future type of galvanic batteries? Who knows! Some exotic yet to be developed chemistry might permit the above 3,000 miles per charge to be bested by a factor of a few. One possibility is that some breakthrough in electrical energy charged capacitors might work for this purpose although the best currently available charged capacitors, I believe, have a significantly lower mass specific energy density than even a typical Duracell brand D size battery sold in department stores.
I think the battery physicists and engineers are going to have a lot of fun in the rush to build ever higher mass specific energy storage density batteries. Eventhough I am far from an expert on batteries, the whole endeavor sounds like enough fun to the extent that I might be tempted to jump in.