Sony Announces Targets For Its High-Capacity Lithium Sulfur Battery

2 years ago by Mark Kane 14

Sony

Sony

And here's Sony's logo.

And here’s Sony’s logo.

According to Japanese reports, Sony set a target to commercialize higher energy dense lithium-sulfur batteries by 2020 to replace current lithium-ion batteries.

Two types are on the table: lithium-sulfur (Li-S) and magnesium-sulfur (Mg-S).

Roughly 40% energy density per volume improvement from 700Wh/L to 1,000Wh/L was mentioned.

At first, the new batteries could be used in smartphones, so possibly EVs will not get them in this decade (if ever), especially since the cells aren’t near ready yet, and cost is still the primary determining factor in vehicle applications.

Source: Nikkei Business Publications

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14 responses to "Sony Announces Targets For Its High-Capacity Lithium Sulfur Battery"

  1. Ambulator says:

    These will be lighter (higher Wh/kg), so they will be of some benefit. Unless something better comes along, I think these could see use in cars around 2030.

    1. evcarnut says:

      By 2030 they will have Some astounding technoloy that will make this sound Like Cavemen Talking…..

      1. Pushmi-Pullyu says:

        We can’t be sure of course, but I certainly hope that by 2030 we’ll be seeing something quite different in EV batteries, a disruptive quantum jump improvement, and not merely a step improvement in chemistry such as switching to lithium-sulfur.

        Such a disruptive jump could come from solid state batteries, or lithium-air “batteries” (or more properly, fuel cells), or perhaps li-ion enhanced with graphene electrodes for 5 to 10 times current energy density.

        All of these improvements have already been demonstrated in the lab; it remains for somebody to figure out how to make them cheaply and reliably enough for mass production.

  2. Anthony says:

    Li-S batteries have so far had low volumetric densities (500Wh/l), if Sony can double that and keep weight down and gravimetric densities around 500Wh/kg they’d have a great battery – 40% more energy in a given area and half the weight.

    1. Mint says:

      Indeed. 1000 Wh/L is very impressive for LiS.

      But as the article suggests, these are going into phones first. Can easily fetch >$1000/kWh for high end smartphones.

      1. PureElectricPower says:

        What is the best energy density of batteries in smartphones now?

        1. Pajda says:

          for example Samsung Galaxy S5 Battery specs: (prismatic format)

          10,78 Wh / 45,2 g / 84×42,3×5,5 mm => 550 Wh/l and 238 Wh/l

  3. Bill Howland says:

    “High-End SmartPhones.”

    Yeah, probably the first few years’ production will go to the phones because people like paying huge sums for them anyway.

    Would be nice if someone could make an ECONOMICAL big battery.

    1. PureElectricPower says:

      I don’t see big difference in battery energy density in phones before 5 years and now.

      1. Sveno says:

        Most went from Li-ion to LiPo though

    2. SJC says:

      LiS can be lower cost, it depends on the design and manufacturing techniques. Look at companies like 24M.

  4. Priusmaniac says:

    The volumetric density is interesting but the mass density is still what is essential especially when LiS batteries are the key to electric planes. So LiS will sure mean a breakthrough and a wider market for electric cars.

    The 2030 date for LiS car application is a bit off since we are only in 2016. If gigafactory 1 start 2 years from now, LiS battery is going to made there much sooner than 2030. They will probably start with the conventional Li battery for 2 or 3 years, but by 2020, they are likely to start producing LiS as well. So by 2025, it will be all of it which makes the 2030 date kind of very pessimistic.

  5. shawn marshall says:

    ho-hum

  6. ItsNotAboutTheMoney says:

    So, it’ll be ready in 5 years. Where have I heard that before…

    https://xkcd.com/678/