source:Industry News release time:2023-03-24 Hits: Popular:Lithium-ion battery wholesale
Although in different charging states, compared to other positive materials, the thermal stability of LifePO4 is the best, but over -charging will also cause the unsafe hidden dangers of the LifePO4 power battery during use. In the state of overcharging, solvents in the electrolytes are more prone to oxidation and decomposition. Will ethylene carbonate (EC) in common organic solvents give priority to oxidation and decomposition on the positive surface. Due to the low lithium -mochemical (lithium battery level) of the lithium lithium, there is a great possibility of lithium in the precipitation of the lithium litter. One of the main reasons for the failure of the battery under the condition of over -charged is the internal short circuit caused by lithium crystal branches. The failure mechanism of lithium -plating lithium plating caused by over -charged the surface of the lithium plating on the surface of the lithium plating shows that the overall structure of graphite's negative electrode has not changed, but there are lithium crystal branches and the emergence of the surface mask, and the reaction of lithium and electrolytes will increase. More active lithium also makes the lithium spread to the negative electrode of the stone tools more difficult. In turn, it will further promote the deposition of the lithium on the negative surface, resulting in further reduction of capacity and Kulun efficiency. In addition, metal impurities (especially Fe) are usually considered one of the main reasons for battery failure. Lithium phosphate iron batteries have theoretical possibilities in theory when the oxidation and reduction of FE is theoretically possibly when charging/discharge cycle, and a reaction mechanism is given: when it is overcharged, the FE first oxidize to Fe2 ﹢, FE2 ﹢ further oxidize to Fe3 ﹢, and then FE2 f and Fe3 ﹢ spread from the side of the positive pole to the side of the negative electrode. FE3 ﹢ was finally restored into Fe2 ﹢, FE2 ﹢ further restores to form Fe; when the charging/discharge cycle, the FE crystal branch will be formed at the same time and the negative electrode at the same time, and will stab The formation of the FE bridge through the septum causes the micro -short circuit of the battery. The obvious phenomenon of the micro -short circuit of the battery is that the temperature continues to rise after the overload. At the time of discharge, the negative electrode potential will rise rapidly, and the increase in the potential will cause damage to the SEL membrane on the negative surface (the part -rich part of the inorganic compound in the SEL membrane is easier to oxidize), which will cause additional decomposition of the electrolyte , Resulting in capacity loss. More importantly, the oxidation of the negative episodes of the fluid CU box will occur. The oxidation product CUO in the negative SEI film will cause an increased battery resistance and cause the battery capacity loss. HE and other four studied the over -discharge process of the LIFEPO4 power battery in detail. The research results show that the negative episodes can be oxidized into CUR when discharge. CU ﹢ is further oxidized to CU*. Restore reaction CU c → Cu →
Read recommendations:
lithium batteries for solar panels sales
20kwh 30kwh 40kwh High Power Lithium Battery 307V 100Ah For Solar Energy Storage System
Important factors affecting internal resistance of battery
Development prospects of lithium batteries.solar energy generator
Last article:Battery customization.lithium marine batteries company
Next article:What are the advantages and disadvantages of lithium titanate batteries?lithium trolling motor batte
related suggestion
lifepo4 battery 12v
2023-04-07solar power battery storage Processing
2023-04-07marine battery for trolling motor manufacturer
2023-04-07lithium golf cart batteries direct sales
2023-03-22best portable solar generator
2023-03-20best solar generator for home
2023-03-20golf cart batteries for sale
2023-05-08lithium boat batteries
2023-05-08best portable solar generator
2023-05-08lifepo4 12v
2023-05-08lifepo4 battery 12v
2023-05-08best rv deep cycle battery
2023-05-08Golf Cart 51.2V 150Ah LiFePo4 Battery Pack
2022-09-2920kwh 30kwh 40kwh High Power Lithium Battery 307V 100Ah For Solar Energy Storage System
2023-02-14Forklift Battery 12V 150Ah
2022-09-1951.2V 100Ah Household Energy Storage System Wall Mount Home Battery Pack
2022-10-19Household Energy Storage System Battery Pack Integrated with Inverter 16S2P 51.2V 100Ah
2022-10-20How to look at the battery capacity.lithium marine batteries manufacturer
2023-04-14Important factors affecting internal resistance of battery
2022-11-11How to preserve 48V lithium iron phosphate battery?
2022-11-22Introduction to Lithium Battery Electrolyte.solar backup generator
2023-07-21Lithium secondary battery.solar powered generator for home
2023-05-19The difference between "blade battery" and ternary lithium battery
2022-12-02Cathode material of lithium ion battery.12 volt deep cycle marine battery
2023-03-13Are Lithium-ion batteries safe
2022-10-11Soft cymbal iron phosphate battery cell.lithium batteries for solar panels Vendor
2023-03-23What are the main characteristics of Lithium iron phosphate battery?marine battery for trolling moto
2023-06-20