Battery tech news

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  • #166277 Reply
    Brydo
    Participant

    Every few weeks it seems there is a new “better than anything out there” battery so i thought it would be interesting to see whats “potentially” coming to the market “soon”.

    The only person who got all his work done by Friday was Robinson Crusoe.
    Anything i post over three lines long please assume it is an article lol.

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  • #166349 Reply
    Brydo
    Participant

    Farasis Batteries With Silicon-Carbon Anode Get 25% Energy Boost

    The new cells with Group14’s silicon-carbon anode reach 330 Wh/kg and 750 Wh/l.

    By: Mark Kane

    Group14 Technologies, a Washington state based battery material startup founded in 2015, reports that its SCC55 silicon-carbon anode provides a significant 25% energy density boost.

    Farasis Energy, a Chinese battery manufacturer, was able to utilize the SCC55 to increase the energy density of its lithium-ion EV pouch battery cells to 330 Wh/kg, which is almost 27% more than 260 Wh/kg achieved when using a traditional graphite anode.

    The volumetric energy density is also high at 750 Wh/l and the cycle-life is “more than 1000 charge-discharge cycles.”

    Those are serious numbers, delivered from a respectable company. Let’s recall that Farasis Energy is a well known name in the battery industry, backed by Daimler, which has owned about 3% of the company since 2020. It supplies batteries for Mercedes-Benz and Geely.

    Group14 Technologies, on the other hand, is backed by Amperex Technology Limited (ATL), BASF, Cabot Corporation, Showa Denko and SK materials.

    According to the press release, Group14 Technologies is ready to deliver the SCC55 from its “commercial-scale” Battery Active Materials (BAM) factory in Washington state.

    Dr. Keith Kepler, CTO of Farasis Energy said:

    The confirmation that the SCC55 silicon-carbon anode works as expected in EV-sized cells is not a big surprise, as we first heard about Farasis Energy’s development of sample cells in Spring 2021.

    At the time, the company highlighted (source in German) several parameters of its upcoming Gen4 cells:

    The only person who got all his work done by Friday was Robinson Crusoe.
    Anything i post over three lines long please assume it is an article lol.

    #166434 Reply
    Brydo

    #166469 Reply
    Brydo
    Participant

    The only person who got all his work done by Friday was Robinson Crusoe.
    Anything i post over three lines long please assume it is an article lol.

    #166520 Reply
    Brydo
    Participant

    Lithium Sulfur batteries: SOLVED! Two new tech breakthroughs in the same week!

    The only person who got all his work done by Friday was Robinson Crusoe.
    Anything i post over three lines long please assume it is an article lol.

    #166719 Reply
    Brydo
    Participant

    Exploring the 1000 Mile Car Battery – Aluminum Air Hype?

    The only person who got all his work done by Friday was Robinson Crusoe.
    Anything i post over three lines long please assume it is an article lol.

    #166991 Reply
    Brydo
    Participant

    Desten Teases 5 Minute, 900 kW Ultra-Fast Charging Battery Tech
    Its batteries are expected to be used in the upcoming Piech GT Electric Grand Tourer.

    By: Mark Kane

    Desten, a Hong Kong, China-based battery company founded in 2015, teases its battery cell technology, which is promised to offer ultra-fast charging at some 10C, in less than 5 minutes.

    The company says that its batteries can be recharged from 0% to 80% state of charge in 4 minutes and 40 seconds.

    The prototype battery pack and electric vehicle iss ready to charge at up to 900 kW, which is some three times higher than the peak value for currently available cars (270 kW – Porsche Taycan).

    Desten does not explain the details (chemistry), but the batteries are expected to be used in the upcoming Piëch GT, which is supposed to have a 75 kWh battery and capability to recharge in 5 minutes. The range of this car will be 500 km (311 miles) of WLTP, which would be 150 Wh/km (241 Wh/mile).

    Desten notes that an increase in battery charging power would reduce the charging time and the number of charging stalls required, as well as improve the regenerative braking capabilities.

    According to the company, the new battery cells are also long-lasting with 3,000 charging cycles (100% DoD), maintaining 80% of nitial capacity, which is equivalent to 1.5 million km (932,000 miles).

    If all of above already does not sound too good to be true for you, here is one more thing – no need for cooling, as the cells barely warm up during ultra-fast charging, increasing temperature by only 15°C.

     

    Desten’s website shows a 19 Ah cell spec with energy density above 160 Wh/kg and 350 Wh/l, which indicates that those are high-power cells, but not really high-energy dense cells. They are actually below LFP.

    Maybe there will be some gains from a simple battery pack/lack of cooling, but overall, it might be heavy – a 75 kWh battery would require some 468 kg of battery cells (plus everything else in the battery pack, like cables, electronics, modules, enclosure).

    The second question is the cost, as the fast charging LTP batteries, often used in electric buses – as far as we know – have usually been costly (per kWh unit).

    The only person who got all his work done by Friday was Robinson Crusoe.
    Anything i post over three lines long please assume it is an article lol.

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