Quels sont les principaux composants des matériaux de batterie au lithium? Quatre principaux matériaux de batterie au lithium sont brièvement présentés

Batterie au lithium is a kind of battery composed of lithium metal or lithium alloy as positive / matériau d'électrode négative, en utilisant une solution d'électrolyte non aqueuse. En raison des caractéristiques chimiques du lithium métal sont très actifs, effectuer le traitement, conservation et utilisation du lithium métal, les exigences environnementales sont très élevées. Avec le développement de la science et de la technologie, lithium battery has become the mainstream.

1. Quels sont les principaux composants des matériaux de batterie au lithium

Carbon anode materials: the actual anode materials used in lithium ion batteries are basically carbon materials, such as artificial graphite, natural graphite, intermediate phase carbon microspheres, petroleum coke, carbon fiber, pyrolysis resin carbon, etc..

Tin-based cathode materials: Tin-based cathode materials can be divided into tin oxide and tin-based composite oxide. Oxide refers to the oxide of various valent metal tin. There are no commercial products available.

Nitrides: No commercial product.

Alloy category: including tin-based alloy, silicon-based alloy, germanium-based alloy, aluminum-based alloy, antimony-based alloy, magnesium-based alloy and other alloys, and there are no commercial products.

Nanoscale: nano-carbon tubes, nano-alloy materials.

Nanooxide: According to the latest market developments in the lithium battery new energy industry in 2009, many companies have begun to use nano titanium oxide and nano silicon oxide to add to the previously traditional graphite, tin oxide, nano carbon tubes, greatly improving the charge and discharge volume and charge and discharge times of lithium batteries.

2. Four main materials for lithium batteries

Lithium battery material composition mainly includes cathode material, matériau cathodique, diaphragm and electrolyte.

1, cathode materials: among the lithium cathode materials, the most commonly used materials are lithium cobalt oxide, lithium manganese oxide, lithium iron phosphate and ternary materials (polymer of nickel cobalt manganese).

2, cathode materials: among the cathode materials, the current lithium battery cathode materials are mainly natural graphite and artificial graphite. The anode materials being explored are nitrides, PAS, oxydes à base d'étain, alliages d'étain, nanoanode materials, et quelques autres composés intermétalliques.

3, diaphragme: market diaphragm materials are mainly polyethylene (polyethylene, PE), polypropylene (polypropylene, PP) based polyolefin (Polyolefin) diaphragme. In the structure of lithium battery, le diaphragme est l'un des composants clés de la couche interne.

4. Electrolyte: the electrolyte is composed of high purity organic solvent, sel de lithium électrolyte, additifs et autres matières premières nécessaires, sous certaines conditions, selon une certaine proportion.

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