Lithium-ion batteries, capacitors and lithium ion capacitor

Japan's Fujitsu Company set up a capacitor business promoting room, its Chief named LingMuJingSheng recently wrote a universal knowledge of lithium ion capacitor and with lithium-ion batteries and electric double-layer capacitors compared the features.
Fujitsu develops lithium-ion capacitor is characterized by high output power, charge and discharge cycle characteristics of excellent, high power is needed, mainly for the hybrid car field.
1 .Self-comparison of discharge, voltage, capacity,
Lithium ion capacitor with the lithium-ion battery material differences mainly in the positive. The cathode of lithium ion capacitor is activated carbon; this is different from lithium ion battery lithium oxide.
2 .Safety: lithium battery replace the nickel-metal hydroxide batteries and lead acid batteries is a great progress in battery technology, but safety of lithium-ion batteries also have occurred, as noted above, this is caused by their different cathode structure. Lithium battery cathode using lithium oxide, not only contains large amounts of lithium can be formation of lithium Dendrite also contain important elements of the fire oxygen. Cells once the short circuit can develop integrated thermal decomposition, and electrolyte reactions may cause a fire.
And the positive electrode of lithium ion capacitor is activated carbon, even if internal short circuit will react with the negative, but it will not react with electrolyte, in theory, this is much safer than lithium-ion batteries.
3. And long life features: lithium battery for longer life, the depth charging and discharging lithium batteries have some limits, thus reducing substantially the available capacity, electric double-layer capacitors charge and discharge principle is simple to adsorption or removal of ions in electrolytic solution and has the longest life expectancy alone it is difficult to extend the practical life. Positive electrode of lithium ion capacitor reduces potential voltage of the unit it will not fall sharply, thus ensuring that capacity.
4, High temperature resistant features: storage components vulnerabilities is working when the temperature rises. Repeated charging and discharging process, the internal resistance will help push temperatures to rise, thus affecting the life, this is because, under the condition of high temperature, electrolyte, anode oxidation prone, therefore, in high temperature conditions may need to lower the cathode potential, but potential to reduce cases, electric double layer capacitor voltage drops as a whole to ensure capacity. Li ion battery you cannot buck, prone to security problems. Lithium ion capacitor is the only oxidation decomposition at cathode potential away from the region's location, and excellent high temperature performance.


Contact:
Person: Tim.lee
Company: Dongguan Large Electronics Co., Ltd
Add: Block A, Gaosheng Technology Zone, Nancheng District, Dongguan City, Guangdong Province, CN
Tel: 86-769-23182621
Email: Tim.lee@largepower.cn
Site: www.lithiumion-batterypack.com

Comments

Post a Comment

Popular posts from this blog

Ternary materials for lithium ion batteries

Ternary materials for lithium-ion batteries are   lithium ion battery   technology in the development of a new type of cathode materials for lithium-ion batteries, because of its comparative advantage, ternary lithium-ion battery materials showed broad prospects on the application in the market. Cathode material for lithium-ion battery from lithium to lithium cobalt oxide, manganese oxide, ternary material into three types (In addition to the dynamic type of lithium iron phosphate), So-called ternary materials for lithium-ion batteries is nickel, cobalt, and manganese salts as raw material, nickel and cobalt and manganese are three elements (ternary) battery cathode materials made of mixed in different proportions.  The advantages of lithium cobalt oxide significantly, but the high price of Cobalt metal, has the advantages of lithium manganese oxide ratio performance, low cost, high temperature resistance and poor performance, ternary material for lithium-ion battery...
Read more

Lithium batteries and lithium-ion batteries

Lithium batteries and lithium-ion batteries are popular fast cell variety, in literature and in real life, it was discovered that lithium batteries and lithium-ion batteries in use sometimes similar, sometimes interchangeably, the reason is that  lithium battery  and lithium-ion batteries is different and has inherited and developed concepts of the relationship, it is no wonder that people will confuse the two. So-called lithium battery, is to metal lithium do negative activity material of battery General, and lithium ion battery is refers to two species different of can reversible of embedded and off embedded lithium ion of embedded lithium compounds respectively as battery cathode and negative of two times battery system, lithium battery and lithium ion battery of same points is in cathode and electrolytic quality, two species battery are used metal oxide and sulfide as cathode, and to organic solvent - Inorganic salts as electrolyte system. Lithium battery and  li...
Read more

Application and development trend of lithium ion capacitor

Lithium ion capacitor has widely of application prospects, this is because it integrated has lithium battery and traditional double capacitor of advantages, and lithium battery phase compared, it more stable, since discharge very less; and double electric layer capacitor compared, both of charging speed difference is unlikely to, but energy density is high out double electric layer capacitor, in storage power same of situation, size also just which of a few minutes one of. At present, in the electric double-layer capacitors based on improved lithium ion capacitors are used in the following four aspects: 1 Balancing wind power, when the breeze generation less usable power capacitor electrical storage can be used when a strong wind, not wasteful; 2 Street lamp battery a full charge unit (including LED Lighting, solar panels and lithium-ion capacitor) can maintain all night lighting, using nickel-metal hydroxide batteries or lithium ion battery of the complex control modules; 3...
Read more