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Future of Solid-State Battery with QuantumScape

Electric vehicles in our modern world is a very big innovation and this has been possible due to Modern battery technology- Lithium-Ion Batteries but these batteries have some limitations Such as energy density, charge cycles, energy fade which can replace by Solid-State Battery.

But if I tell you that there is a battery which is more Energy-Dense, Efficient and Long-lasting. I’m talking about solid-state batteries. How it will be the future of electric vehicle and grid energy storage?

Solid-state batteries are not a new thing, many companies are working on this battery technology but a company whose name is Quantum Scape. This company is working on solid-state batteries for 10 years and recently the company grabbed the attention of the public, when the company went public on New York Stock Exchange(NYSE), the reason for this is the company’s new solid-state battery technology.

Quantum Scape | futureyan

How does a lithium-Ion battery work?

I think a lot of you will know how a lithium-Ion battery works. Those who don’t know this a short introduction for you if we see a Lithium-Ion battery, Cathode which is made up of lithium metal oxide, Separator, and Anode which is made up of carbon, current collectors at both ends and finally Liquid Electrolyte. When we charge the battery electrons from the cathode move to the anode via the external circuit and through the separator and electrolyte lithium ions move to the anode. This is how lithium-Ion battery charges And the same happens in reverse when the battery is discharged.

Future of Solid-State Battery | FUTUREYAN

Since Mobile Lithium Ions are the main carriers of charge inside the battery energy density basically depends on how many there are per unit weight, and also fast charging depends on how fast these ions can diffuse with the carbon anode.

Significant improvements in lithium-ion batteries have been achieved by adding silicon this is because silicon can hold 10 times more lithium-ion than carbon increasing the amount of silicon in the anode without affecting any of the other characteristics is the current growth strategy of these lithium-ion batteries.

How QuantumScape use Solid-State Battery?

QuantumScape is pursuing a different direction, Cathode which is the same as any other lithium-ion battery made up of lithium metal oxide, but if we talk about the Anode they have nothing because this energy density of the battery increases drastically. At the time of charging lithium ions deposit directly onto the current collector when discharging they go back into the lithium metal oxide lattice because this battery doesn’t have the anode, energy density of the battery increases drastically.

The next innovation is instead of Electrolyte and Separator they have used a flexible solid-state ceramic electrolyte this serves both to separate anode and cathode and also to allow a passage for lithium ions. There are several benefits for having solid-state electrolytes the most important is safety they are much more resilient to fire.

The problem due to which solid-state battery are still developing is their solid electrolyte it is not a great conductor mostly in higher temperatures, so their power characteristics are not very useful if we try to increase energy density, some other parameters usually suffer such as charge cycles. QuantumScape claims to have resolved these issues by using its solid-state ceramic electrolyte.

What is C in Batteries and How QuantumScape uses it?

Let me tell you what C is so that you can understand the next segment a little better, 1C in battery lingual refers to a battery that can charge to its full capacity in one hour, if your phone charges to 100% in 2 hours then it’s 0.5C, if it charges fully in half an hour then it’s 2C. Basically higher the number faster you can charge the battery, Quantumscape’s battery can easily hit 4C this means a full charge in 15 minutes, they have even tested it at 25C which means a full charge in 2 minutes. They have tested a version of the battery on a race track too and 15 minutes to a full charge seems to be holding up this is important because the speed, vibration, heat of the real world are difficult to simulate in the lab when this battery comes to market at that time if it provides 25 min full charge that 15 minutes then also it is a big improvement. This is very useful for the upcoming future with QuantumScape Solid-State Battery.

Why can’t we charge lithium-ion batteries faster and How it resolves by Solid-State Battery?

The direct answer is Dendrite formation as the battery gets charged space for lithium ions to get bind with carbon decreases and if we force the Ions then the dendrites get formed which can eventually by crossing the separator can reach the cathode. In QuantumScape’s battery because lithium is directly plated onto the current collector which forms a smooth layer, which prevents dendrites from growing, so what you are looking at is a battery that charges really fast in which lithium ions doesn’t have to bind with carbon simply, it will get electroplated onto the current collector it is safe and also you get higher energy density which is the biggest limiting factor for electric vehicles.

Fade Capacity of Solid-State Battery

The next thing is capacity fade which means for How long the battery can hold the charge? and lastly, Solid-State Battery doesn’t have an Anode which means it will need less raw material to manufacture, and in the long term cost of this battery can get even lower than the lithium-ion battery.

Currently, this battery has achieved 800 charge cycles and after that 80% capacity has left but the company should implement other chemistries such as Nickel Magnese Cobalt and Lithium Iron Phosphate which can increase the number of charge cycles and eventually reduce the battery cost. The company claims that they can produce these batteries in a conventional lithium-ion manufacturing facility with some improvements, if this happens it will reduce the huge cost barrier of entering into new technology.

Future of Solid-State Battery:

Before you invest your money into this company here’s a few things you should know they are not planning to do mass manufacturing until mid-2024 and with tesla’s 4680 cells on the way many have stated advantages vanished by that time as far as the cost of the materials go it will be lower but this doesn’t say about creating the ceramic electrolyte. It can be easy or will have to create in a controlled manner inside a lab.

One thing is sure that the company is working on a technology that will ease the transition towards our Electric future. Recently a representative from the company said that this battery will be first implemented into premium electric cars, there have been announcements around solid-state batteries too Toyota is going to showcase their solid-state. battery-powered car in the 2021 summer Olympics and that will give us a glimpse into the state of technology right now Maybe we are moving towards a huge transition and QuantumScape seems to have brought the future a little closer.

Future of Solid-State Battery | futureyan
Q1. Do solid-state batteries charge faster?

Solid-State battery has achieved 800 charge cycles and after that 80% capacity has left but the company should implement other chemistries such as Nickel Magnese Cobalt and Lithium Iron Phosphate which can increase the number of charge cycles and eventually reduce the battery cost. The company claims that they can produce these batteries in a conventional lithium-ion manufacturing facility with some improvements, if this happens it will reduce the huge cost barrier of entering into new technology.

Q2. What companies are developing solid-state batteries?

Solid-state batteries are not a new thing, many companies are working on this battery technology but a company whose name is Quantum Scape. This company is working on solid-state batteries for 10 years and recently the company grabbed the attention of the public, when the company went public on New York Stock Exchange(NYSE), the reason for this is the company’s new solid-state battery technology.

This Post Has One Comment

  1. The Stainless Steel

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