Energy storage battery generally refers to the energy storage battery. Energy storage battery mainly refers to the battery used for solar power generation equipment and wind power generation equipment and renewable energy saving energy. Common energy storage batteries for lead-acid batteries. Is gradually developing lithium iron phosphate as the positive material of lithium-ion energy storage batteries. Let’s take a look at the classification and characteristics of energy storage batteries.
Energy storage batteries are divided into the following three categories.
1) exhaust-type energy storage with lead-acid batteries. The energy storage battery cover can replenish the liquid and precipitation gas device battery.
2) Valve-regulated lead-acid batteries for energy storage. Each cell is sealed, but with a valve that allows gas to escape when the internal pressure exceeds a certain value.
3) Lead-acid battery with colloidal energy storage. It is an energy storage battery with a colloidal electrolyte.
The lead-acid battery for energy storage must have the following characteristics.
1) lead-acid batteries use a wide range of temperatures. Generally required in -30-60 ℃ temperature environment can be normal operation.
2) The low-temperature performance of the energy storage batteries should be good. Even if the temperature is relatively low in the region can also be used.
3) Good capacity consistency. Maintain consistency in series and parallel use of the battery.
4) Good charging acceptability. In an unstable charging environment, there is a stronger charging acceptance ability.
5) Long life of the lead-acid battery. Repair and maintenance costs are much lower, and also reduce the overall system investment.
The three main materials of the energy storage battery.
1) the traditional cathode materials (LiCoO2, LiMn2O4, LiFePO4, etc.) based on the development of the relevant types of derivative materials. Through doping, coating, adjusting the microstructure, controlling the material morphology, size distribution, specific surface area, impurity content, and other technical means to improve its specific capacity, multiplicity, cyclability, compaction density, electrochemical, chemical, and thermal stability.
2) And ternary materials (LiNixCoyMn1-x-y) and lithium-rich materials (Mn-based and V-based) have greater development and technical research space and broad application prospects.
3) A series of transition metal fluorides, oxides, sulfides, and nitrides are proven to achieve multiple electron transfers. Energy storage batteries can achieve very high capacity. It is mainly divided into conducting polymers, sulfur-containing compounds, nitrogen-oxygen radical compounds, and carbonyl compounds.
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