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The most common method of energy storage is with electrochemical batteries which have the disadvantages of environmental and health hazards, short lifespans, limited number of charge cycles and high maintenance costs. A need for more environmentally-friendly, cost-effective, and relatively safe … Continue reading →

The most common method of energy storage is with electrochemical batteries which have the problems of environmental and health hazards, short life spans, limited number of charge cycles and high maintenance costs. A need for more environmentally-friendly, cost-effective, and relatively safe … Continue reading →

  http://permanent.access.gpo.gov/gpo3023/ARL-TR-3388.pdf

http://www.sciencedirect.com/science/article/pii/S135983680200032X

http://patentscope.wipo.int/search/en/WO2011041503

Kinetic energy regenerating device patent

  http://ieeexplore.ieee.org/Xplore/defdeny.jsp?url=http%3A%2F%2Fieeexplore.ieee.org%2Fstamp%2Fstamp.jsp%3Ftp%3D%26arnumber%3D4380112&denyReason=-134&arnumber=4380112&productsMatched=null&userType=inst

Spherical flywheel patent: US7536932sphericalflywheel Could the 2 inner spheres be perpendicular to each other on the horizontal plane and each sphere would have its supports with leads that curve under it and exit at the bottom end of the outermost … Continue reading →

http://www.sciencedirect.com/science/article/pii/S1364032105000146

Figure 3 in page 11 of this report is interesting. http://www.energy.ca.gov/reports/2004-04-07_500-04-014.PDF