Author ：Iflowpower – Portable Power Station Supplier
How to increase the energy density of the lithium-ion battery 1. Continuously improve the positive electrode material to the host material (gram storage capacity) in the positive activity of the active substance is capable. In the case where the total amount of the positive active material is constant, only the maximum number of lithium ions can be separated from the positive electrode for thermochemical reactions, thereby constantly improving energy density.
Therefore, the product quality occupancy rate of removable lithium ions is higher than the product quality occupancy rate of the positive electrode active material, and the product quality occupancy of the positive electrode active material is higher than the storage index. 2. Constantly increasing the capacity of the anode material is a common thing.
It is not a major breakthrough in the energy storage density of the dynamic lithium ion battery, but if further improves the cathode ratio storage, the anode material, lithium, representing the quality of the product, lithium Ions can accommodate more and more, improve energy density continues to improve. 3. An important purpose of continuously improving the occupancy of positive active substances Continue to add the share of active substances in the positive electrode is to continue to increase the share of lithium.
In the same battery chemical industrial mechanism, the composition of lithium adds new (other necessary conditions unchanged), and the energy density is constantly added. Therefore, under certain volume and total weight, you want to have more active substances, more. 4.
Convergence of increasing the proportion of active substances in the negative electrode This design is to better match positively electrically active substances, and increasingly negative electrical active substances to accommodate downstream lithium ions to store kinetic energy. If there is not enough active substance in the negative electrode, excess lithium ions will precipitate and stacked on the surface of the negative electrode, rather than entering the internal electrode. Inverse thermochemical reaction and battery capacity attenuation are often occurred.
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