Advantages of solid-state batteries
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Higher energy density
Solid-state batteries can generally achieve a higher energy density, which means they can store more energy per unit volume. This leads to longer driving time and range -
Safety
Solid-state uses solid electrolytes instead of liquids, which reduces the risk of leaks and fires. -
Longer lifespan
Solid-state batteries exhibit lower degradation over time. In short: the batteries can undergo more charge and discharge cycles before losing their capacity. -
Better temperature range
Solid-state batteries can operate in a wider temperature range without compromising their performance. In particular, cold temperatures do not cause damage to the battery. -
Lower self-discharge
Solid-state batteries generally have a lower self-discharge rate, which positively affects durability and longevity. Deep discharge is possible. Cycles are often specified with 3,000 at 100% DOD. -
Environmentally friendly
Solid-state batteries can be produced more environmentally friendly than conventional batteries. Moreover, there are fewer concerns regarding the use of rare earths or hazardous materials.
Disadvantages of solid-state batteries
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Currently higher costs
At present, only small quantities are being produced and the production costs are somewhat higher than with lithium-NMC. Once production costs decrease, solid-state batteries will replace traditional lithium batteries.
Switching to solid-state batteries may already be worthwhile due to their lifespan!
Construction of a solid-state battery © Flash Battery
Operation of solid-state batteries
Solid-state batteries use a solid electrolyte instead of a liquid electrolyte, as is common in conventional lithium-ion batteries. A typical solid-state battery consists of three main components:
Anode: This is the negative electrode where lithium ions are stored. During discharge, the ions flow from the anode through the electrolyte to the cathode.
Cathode: This is the positive electrode that takes in lithium ions during the discharge process. The cathode is often made from materials such as lithium metal oxide.
Solid electrolyte: The solid electrolyte conducts lithium ions between the anode and cathode. It provides both ionic conductivity and strength, which enhances the stability of the battery. It can be made from various materials, including ceramic, sulfide, or polymer materials.
Charging and discharging process
Charging the battery
When charging the battery, electrical energy is converted into chemical energy. The lithium ions move from the cathode to the anode through the solid electrolyte. At the same time, an electron flows back to the anode through the external circuit.
Discharging the battery
When discharging the battery, the lithium ions move from the anode back to the cathode through the solid electrolyte. In the process, they release their stored energy, which can be used as electrical energy. The electron flows again through the external circuit from the anode to the cathode.
Open questions?
Conclusion on solid-state batteries
Research and development in the field of solid-state batteries is progressing rapidly. We already have the first market-ready solid-state batteries in our portfolio. Currently, solid-state batteries are not yet produced in large quantities, but even now there are many advantages compared to the classic lithium-NMC technology.
The most important thing: solid-state batteries are already at a similar price level, and if you have the choice - you should opt for the solid-state battery rather than the NMC battery.
It is best to contact us for more information and individual offers!
What are solid-state batteries?
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