6 Advantages of Solid-State Batteries

The electrolyte is replaced by a solid electrolyte, which has the following advantages:

1.The energy density can be greatly improved. (positive electrode)

In the past, because of the fear of side reactions between high-voltage cathode materials and electrolyte dissolution, and irreversible phase transitions on the surface of the anode, they were afraid to use them. After using a solid electrolyte, you can use a high-voltage cathode material that increases the energy density of the battery, which can significantly increase the energy density and easily exceed 400Wh/kg.

 2.  The charging speed can become faster. (negative electrode)

The negative electrode determines the charging speed of the battery, and the lithium metal negative electrode cannot exist stably in the electrolyte. After using a solid electrolyte, the electrolyte will not react violently with the lithium metal negative electrode, and can achieve fast charging and fast discharging within ten minutes. 6C charging Discharge properly.

 3.  The safety is further improved. (diaphragm)

The electrolyte of existing lithium batteries is flammable, and once it leaks or volatilizes, it will easily cause the battery to catch fire. The solid-state electrolyte is non-flammable. Even if the diaphragm is pierced, it will not leak or volatilize. The safety can be greatly improved. The ternary lithium battery is no longer demonized.

4.Low temperature is not afraid of battery diving. (electrolyte)

At low temperatures, the viscosity of the electrolyte will increase, and the ion conduction velocity will slow down, resulting in a mismatch in the electron migration velocity of the external circuit, severe polarization of the battery, and a sharp decrease in charge and discharge capacity. The use of solid electrolyte will not be affected by the low temperature environment. It is not afraid of power loss at -40°C.

5.The cycle life is longer. (Negative electrode SEI film)

Affecting the cycle life of lithium-ion batteries is that the number of lithium ions is constantly decreasing. When lithium ions migrate to the surface of the negative electrode, some lithium ions do not enter the negative electrode active material to form a stable compound. After obtaining electrons, they are deposited on the surface of the negative electrode to become metal lithium, and no longer Participate in the subsequent cycle process, resulting in a decrease in capacity. The solid electrolyte solves the problem of the solid electrolyte interface film formed by the liquid electrolyte during charging and discharging, greatly improving the cycle life of the lithium battery, ideally 45,000 times.

6.  The demand for thermal management will be reduced accordingly.

Under the charge-discharge cycle conditions of the solid-state battery at a high temperature of 170°C, no significant increase in side reactions can be observed. In addition, when the battery is charged and discharged at a low temperature of -40°C, it can also be observed that there is still very stable charge and discharge at low temperatures. Due to the dense stacking of solid electrolyte, no cooling is required after packaging.

What are your opinions on solid-state batteries?Looking forward to your reply.

Thanks for the information.
Any thoughts on the challenges laying ahead for solid state batteries and the timeframe it will take?

The solid-state electrolyte and the positive and negative electrodes are in contact with the solid/solid interface, the contact area is small, the contact tightness with the pole piece is poor, the interface resistance is high, and the transmission of lithium ions between the interfaces is hindered

Thanks for sharing the great info

Solid-state batteries offer several advantages, especially when considering their potential applications in various technologies, including solar systems for homes. Here are six advantages:

1.Enhanced Safety: Solid-state batteries are generally considered safer than traditional lithium-ion batteries because they replace the liquid electrolyte with a solid material. This eliminates the risk of leaks or combustion, making them a more secure option, which is particularly crucial in home solar systems.

  1. Higher Energy Density: Solid-state batteries often have a higher energy density, meaning they can store more energy in a smaller and lighter package. This is beneficial for solar systems where space may be limited, and optimizing energy storage capacity is essential.

  2. Extended Lifespan: Solid-state batteries tend to have a longer lifespan compared to traditional batteries. This longevity is advantageous for home solar systems, providing a more durable and sustainable energy storage solution over time.

  3. Faster Charging: Solid-state batteries typically support faster charging capabilities. In the context of a home solar system, this means quicker replenishment of stored energy, especially during periods of high sunlight availability.

  4. Wide Temperature Range Operation: Solid-state batteries can operate efficiently across a broader temperature range compared to conventional batteries. This adaptability is crucial for home solar systems that may experience temperature variations, ensuring consistent and reliable performance.

  5. Reduced Environmental Impact: As solid-state batteries often use more environmentally friendly materials and eliminate certain toxic components found in traditional batteries, they contribute to a cleaner and greener energy storage solution for home solar systems, aligning with sustainable energy practices.

Considering these advantages, solid-state batteries hold promise for improving the efficiency, safety, and environmental impact of energy storage in home solar systems.