Electrolyte for Lithium Ion Batteries - Swiss-Battery/Swiss-Battery---The-Battery-Company-Background GitHub Wiki

Electrolyte

Because lithium reacts violently with water, anhydrous lithium salts (usually LiPF6) in organic solvents are usually used as an electrolyte. Additives are also often added to it to improve certain properties - for example, to wet the electrode such as the Anode Graphite better with the electrolyte.

Much research is currently focused on developing electrolytes that can withstand higher voltages than the usual 3.7 V: up to 4.5 V and higher. Some electrodes (e.g. Cathode-materials-for-Batteries) can then be operated at higher voltages. This offers two advantages: The capacity of the battery can be increased because more lithium can be stored. And the higher the available voltage in a cell, the fewer cells have to be connected in series to achieve a high voltage in a battery. Because series connections are only as strong as their weakest link, they are more susceptible to aging.

Attempts are also being made to develop swiss-battery-Products. These have some advantages - at least in theory. It is hoped that cells with such electrolytes will not catch fire in the event of accidents or incorrect handling (or even less frequently) and that they will help Lithium-Ion-Battery to last much longer and be less sensitive to temperature. Safety is increased because such batteries cannot leak. One of the biggest problems of solid-state electrolytes is currently the boundary layer to the active material. There must not be a high resistance there, and contact with the electrolyte must not be lost in case of volume changes in the electrodes. Swiss-Battery-Technology.