To put it simply, the battery consists of a galvanic cell, a source of electrical voltage, and an electrolyte, a liquid or a solid solution that leads the electric current.
Unlike traditional electrolytes that completely dissolve in the solution, the innovative electrolyte contains so -called suspended salt particles.
They never completely dissolve, remain near the surface of the electrode and naturally create a highly concentrated layer of anions that maintains a chemical balance of the battery during charging and discharging. This reduces undesirable side effects and the battery lasts longer and works better.
“The new electrolyte technology is extremely interesting for the battery industry. It can be integrated into two -liking battery systems that use cheaper and available materials. Our discovery shifts two -building batteries closer to practical applications in the real world,” said Materials and Systems in Nanomer’s Physics Institute.
Stability, fluidity, easy handling
Unlike conventional single lithium-ion batteries, two different batteries use two different electrolyte ions to store energy. This allows higher voltage and energy density.
Photo: Institute of Physics AS CR
Figure of a two -liking battery consisting of cathode of expanded graphite, electrolyte with suspended particles of salt, separator, electrolyte with suspended particles of salt and zinc anode.
The solution of one of the key restrictions on two -liking batteries – rapid exhaustion of active ions at the interface of electrodes – researchers called electrolyte with suspended particles of salt (SPSE).
Thanks to its stability in air, liquidity and easy handling even after prolonged storage, according to experts, it is suitable for production and extensive applications.
In laboratory tests, he showed stable performance and compatibility with commonly used battery materials such as zinc and graphite, scientists report.
These features indicate the potential for cheap battery systems usable for electric vehicles, storage of renewable energy and personal electronics.
Domestic scientists presented their discovery in the professional periodical Journal of Materials Chemistry A.
