Solid-state batteries, as a battery technology with great potential, are gradually replacing traditional liquid lithium-ion batteries. This new battery technology has a number of compelling advantages that make it the future direction of power batteries.
Recently, the National Aeronautics and Space Administration (NASA) announced that they have made a major breakthrough in solid-state battery technology. Their solid-state battery for aviation has an energy density of 500 Wh kg, which is twice the energy density of the best electric vehicle batteries on the market today. In comparison, Tesla's 4680 lithium battery has an energy density of about 300Wh kg, while other automakers' liquid lithium-ion batteries mostly have an energy density of around 200Wh kg.
The advantages of solid-state batteries are not only reflected in the energy density, but also in the material level. Solid-state batteries use solid electrodes and solid electrolytes, which are safer, faster charging, and have higher energy density than liquid lithium-ion batteries. The advent of solid-state batteries bodes well for electric vehicles that may have longer ranges and faster charging speeds in the future.
In addition, solid-state batteries are also more stable and less affected by temperature. This allows the performance of the electric vehicle to not drop significantly in winter, thus improving the ease of use and performance stability of the electric vehicle.
However, despite the many advantages of solid-state batteries, their mass production will take time. Solid-state batteries are still expensive to produce, so they are not an immediate replacement for liquid lithium-ion batteries. However, with the further development of technology and the reduction of costs, solid-state batteries will become the last straw that crushes fuel vehicles. At that time, electric vehicles may become mainstream, providing new solutions for environmentally friendly mobility.