Denne mannen var grunnlegger på Sunflexsolar
Finnes en god del info om dette selskapet som nå ikke har en oppegående webside. Den er lagt ned.
Er nå en del av violetpower ? Kan tyde på det.link i gamle arkiv endte opp mot violetpower.....

Kan man søke videre her , med denne investor å finne ut mer om mennesker bak violetpower ?
https://www.linkedin.com/in/barryhartweg

Ps: leser man om group14 så sier de mye av det Musk snakket om at man hadde funnet ut hvordan man skulle hindre siliciumet i batteri å ese ut ......
Nettopp det group14 tydeligvis har funnet ut av :))

Dette har med som resultat økt batteri kapasitet

Så at Tesla også er inne her er Garantert et Ja

Group14

2016.

Seattle Startup Group14 Technologies retter seg mot store boost i batterier
Seattle Startup Group14 Technologies retter seg mot store boost i batterier
Benjamin Romano 14.4.16
Et nytt materialfirma i Seattle utvikler en teknologi som kan øke litiumionbatteriets energitetthet med opptil 30 prosent, hevder det, samtidig som det reduserer kostnadene.

Group14 Technologies er en ny spin-out fra EnerG2 , det 13 år gamle materialefirmaet i Seattle som har en voksende virksomhet som leverer konstruerte karbonmaterialer til andre energilagringsteknologier, inkludert ultrakondensatorer og blybatterier.

Det nye selskapet vant et $ 2,8 millioner Department of Energy-stipend for å fremme utviklingen av et nytt nano-skala materiale for anoden til litiumionbatterier. Vanligvis laget av karbon i form av grafitt, er anoden — batteriets negative elektrode — der litium lagres når batteriet lades.

Group14 Technologies er fokusert på silisium "som neste generasjons anodemateriale", sier Rick Luebbe, medstifter av Group14, og EnerG2s administrerende direktør.

Silicon can absorb on the order of 10 times as much lithium as graphite (more than 3,000 milliamp hours per gram, versus about 350 milliamp hours per gram, Luebbe says), but to do so, it expands to three or four times its original size. That causes problems inside the battery, resulting in very short cycle life: maybe 10 recharges, he says.

Group14’s approach is to create a silicon-carbon composite anode material. The carbon provides a structural support to control the silicon’s expansion. As the silicon expands, it fills void space within the carbon, but the anode particle itself does not expand.

“It’s like we’re putting chips in the cookie dough, and the cookie dough is allowing the chips to expand and contract without breaking the cookie,” says Luebbe.

Rick Luebbe
Rick Luebbe

While the anode is only one battery component, Group14 believes its silicon-carbon composite anode material could lead to an outsize improvement in lithium ion battery energy density—as much as 30 percent, Luebbe says—while solving the problem of short cycle life that has limited silicon’s utility in this application.

“Today, battery manufacturers are working hard to try to squeeze out a few percent here and a few percent there,” he says. “So, we start talking tens of percentage [points] of improvement in the relative short term, that is huge.”

Already, Group14 Technologies has achieved battery lifetimes of about 500 to 800 cycles, which is “in the range of what is commercializable today,” Luebbe says.

The company is targeting an anode material with lithium capacity of 1,200 milliamp hours per gram, capable of 1,000 charge-discharge cycles, at a price of “maybe $40” per kilogram, he says. That’s compared to $15 a kilogram for graphite with capacity of 350 milliamp hours per gram.

“We have a material that’s going to have three- to four-times higher performance at less per amp hour than the cost of graphite,” Luebbe says. “From a commercial perspective, it is going to be the most compelling anode material out there, and will contribute to not just higher-performing batteries, but also cheaper batteries.”

Group14 Technologies still has at least 18 months of work to do to achieve its targets, Luebbe says. “But we do see a number of incremental commercial opportunities as we move the technology in that direction,” he adds.

The market for lithium ion battery anode materials is worth $1 billion, Luebbe says.

He says Group14 Technologies is working “with some of the largest lithium ion battery manufacturers in the world,” gathering feedback and validating performance of the silicon-carbon composite anode. He declines to name specific manufacturers.

Panasonic, LG Chem, and Samsung SDI constitute “the big three” battery manufacturers, says Cosmin Laslau, senior analyst at Lux Research, via e-mail. Those companies “are well-positioned not just in today’s electronics but also in the growing markets for plug-in vehicles and stationary storage,” he adds. He also notes fast-rising China-based manufacturers like BYD, Lishen, and ATL.

Group14’s manufacturer relationships are essential. Lots of researchers and companies are working on improving lithium ion battery anodes, as well as cathodes, binder