LOL, well maybe this will help solve that kind of problem...
Electrospun core-shell microfiber separator with thermal-triggered flame-retardant properties for lithium-ion batteries
As always, the key to reading this type of claim is to look for the specification which is NOT mentioned and find out how bad things are in that area. In this case, the missing specification is efficiency.Signs of the Times wrote:1414 Degrees had its origins in patented CSIRO research and has built a prototype molten silicon storage device which it is testing at its Tonsley Innovation Precinct site south of Adelaide.
Chairman Kevin Moriarty says 1414 Degrees' process can store 500 kilowatt hours of energy in a 70-centimetre cube of molten silicon - about 36 times as much energy as Tesla's 14KWh Powerwall 2 lithium ion home storage battery in about the same space.
Following up a year later, I see that the above image is no longer shown on the website (though the link obviously still works), but the verbiage which I quoted is there and roughly the same.RegGuheert in February 2016 wrote:BioSolar is developing a novel Super Battery cathode material which uses an advanced, low-cost polymer to replace the intercalation cathode material in a LI-ion battery. Here are their claimed characteristics:
Add to this very high cycle life and you have an extremely attractive battery. Here is some of the verbiage from their site:
The only thing I don't see mentioned on the website is efficiency. Since current intercalation chemistries achieves very nearly unity efficiency, it is hard to imagine a redox-based approach achieving similar performance. OTOH, I'm not sure how they could hope to achieve charge rates over 5C if efficiency is significantly lower. We'll see.
BioSolar wrote:Silicon (Si) is one of the most promising anode materials being considered for next generation, high energy and high power lithium ion batteries (LIBs). Graphite is currently the most widely used anode material, but Si has attracted great attention because of its natural abundance, non-toxicity, and very high theoretical specific capacity of nearly 4200 mAh/g – about 10 times more capacity than conventional graphite anodes.
However, Si anodes suffer from large capacity fading and tremendous volume changes during lithium-ion charge-discharge cycling. The strains due to the huge volume changes actually pulverizes the Si material and eventually lead to electrode shattering and delamination, which adversely affect the battery performance and cycle life. These are the primary challenges to the commercial use of Si for battery anodes, which BioSolar intends to overcome.
It is good that they achieved an improvement, but that is far from being an Earth-shattering result.BioSolar wrote:One of the significant parameters that can project battery performance is the capacity retention after 200 charging and discharging cycles. At identical loading, prototype batteries with BioSolar’s Si-M anode retained 78.1 percent of the original capacity whereas the benchmark silicon anode retained just 76.6 percent of its original capacity.