This section provides overview, applications, and principles of li-ion capacitors. Also, please take a look at the list of 2 li-ion capacitor manufacturers and their company rankings.
A lithium-ion capacitor is an energy storage device that combines the properties of an electric double-layer capacitor and a lithium-ion secondary battery. The device consists of a cell, cathode, anode, and electrolyte and can be repeatedly charged and discharged as lithium ions in the electrolyte are adsorbed and desorbed by the cathode and anode.
Compared to conventional capacitors, lithium-ion capacitors have a higher energy density, superior safety, and durability and are therefore gaining popularity in a variety of fields, including electric vehicles and sensors.
Lithium-ion capacitors are energy storage materials with high energy and output densities and excellent safety and durability. They are expected to replace lithium-ion rechargeable batteries in fields where high output is required, which lithium-ion rechargeable batteries are not good at. It can also be used in applications where high temperature and high voltage loads are required, which electric double-layer capacitors are not good at.
Because they can be used stably for a long time, even after repeated charging and discharging, they are now being put to practical use in a wide range of fields, including electric vehicles, instantaneous voltage drop compensation devices, and carbon dioxide sensors.
A lithium-ion capacitor is an energy storage device that can directly transfer electricity in and out. A capacitor is a capacitor that mainly consists of a cell, a cathode, an anode, and an electrolyte. Activated carbon is used for the positive electrode, and graphite or other carbon-based materials capable of carrying lithium ions are used for the negative electrode. The anode must be pre-doped with lithium ions. These materials are known as the positive electrode and negative electrodes of electric double-layer capacitors and lithium-ion secondary batteries, respectively. Organic electrolytes dissolving lithium salts, mainly LiBF4 (lithium tetrafluoroborate) and LiPF6 (lithium hexafluorophosphate), can be used as electrolytes.
When voltage is applied to a lithium-ion capacitor, more lithium ions are loaded at the anode, and anions are adsorbed at the cathode. When discharged from this state, only lithium ions are adsorbed on the positive electrode after the lithium ions on the negative electrode and anions on the positive electrode are desorbed, respectively. Thus, the reaction at the positive electrode uses physical adsorption, as in an electric double layer capacitor, and the response at the negative electrode uses the adsorption and desorption of lithium ions, as in a lithium-ion secondary battery.
*Including some distributors, etc.
Sort by Features
Sort by Area
This is the version of our website addressed to speakers of English in the United States. If you are a resident of another country, please select the appropriate version of Metoree for your country in the drop-down menu.