In recent years, "solid-state batteries" have frequently appeared on the hot search list.

Higher energy density, safer, longer battery life... Various promotions give people a feeling that solid-state batteries are about to be fully popularized.

However, in reality, there are still limited solid-state batteries that can be installed on a large scale and produced stably.

So someone asked: Is solid-state battery a scam?

The answer is clear: it is not a scam, but there is indeed a "concept first" promotion in some parts of the market.

1.What is a solid-state battery

Traditional lithium batteries use liquid electrolytes, and lithium ions rely on the electrolyte to move between the positive and negative electrodes.

Solid state batteries attempt to use solid electrolytes instead of traditional liquid electrolytes.

Its core value lies in the opportunity to improve battery safety and further match high-energy density electrode materials by changing the electrolyte system.

But 'solid-state' does not mean 'automatic doubling of performance'.

2. Why do everyone think it's powerful

The biggest attraction mainly comes from two aspects.

Firstly, the potential for safety.

Solid electrolytes typically have better heat resistance, which can reduce the risks of leakage, volatilization, and combustion caused by traditional liquid electrolytes.

Secondly, the potential for energy density.

If solid electrolytes are successfully combined with lithium metal negative electrodes and other systems, there is a chance to reduce the weight of ineffective materials and improve the overall energy density of the battery.

Please note that there is a keyword here:

'Potential'.

Being able to do it in the laboratory does not mean it can be mass-produced immediately.

3. Where is the real difficulty

The biggest challenge for solid-state batteries is actually "moving from the laboratory to the factory".

The contact between solids is not as easy as that between liquids.

During battery charging and discharging, the electrode undergoes volume changes, and cracks, detachment, and increased interface impedance may occur between the solid electrolyte and the electrode.

In addition, it is necessary to address issues such as material stability, manufacturing processes, yield rates, costs, and large-scale production.

So, a high-performance solid-state battery in a laboratory is a completely different concept from being able to stably produce hundreds of thousands or even millions of battery cells.

4. Why is it easy to have a sense of fraud in the market

The problem often lies not in the technology itself, but in the way it is promoted.

The term 'solid-state battery' is sometimes used in a generalized manner.

Semi solid, quasi solid, solid-liquid mixed systems, and truly all solid state batteries are not exactly the same technological route.

If you only see the word 'solid-state', it is easy to misunderstand that it has completely replaced liquid batteries.

In conclusion

Solid state batteries are not a sc am.

It is a real and rapidly developing next-generation battery technology.

But it is not a "magic technology" that has completely matured and is about to fully replace lithium-ion batteries.

What is truly worth paying attention to is not the word "solid-state" in corporate advertising, but the type of electrolyte, actual energy density, cycle life, fast charging performance, cost, and mass production progress.

Only by understanding these indicators can we distinguish between "technological breakthroughs" and "conceptual hype".

Technology is worth looking forward to, but don't mistake 'what may be possible in the future' for 'what has already been achieved now'.