Shenzhen Hysincere Battery Co., Ltd
Shenzhen Hysincere Battery Co., Ltd

News

HYSINCERE insist to navigate by high quality core cell and
highly qualified staffs in the vast sea so to the distance

Home >  News >  Industry News > 

The failure of lithium -phosphate iron batteries in the process of charging and discharge.lithium trolling motor battery Production

source:Industry News release time:2023-03-24 Hits:0     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:

solar power battery storage Factory

portable power station 1000w

Home Energy Storage Battery 51.2V 200Ah 10KWh Stackable Module

Choosing the Right 12V Lithium Battery for Your Business Needs

The research significance of the balanced charging of lithium iron phosphate battery pack.marine battery for trolling motor Manufacturing

Share:

Last article:Battery customization.lithium marine batteries company

Next article:What are the advantages and disadvantages of lithium titanate batteries?lithium trolling motor battery manufacture

related suggestion

lithium batteries for solar panels sales

2023-03-20

lithium power station

2023-03-22

lithium ion golf cart batteries Processing

2023-03-20

lithium power station Processing

2023-03-22

solar energy storage batteries manufacturer

2023-03-20

portable solar power generator

2023-03-20

12v marine battery

2023-05-08

solar battery storage system cost

2023-05-08

12 volt batteries

2023-05-08

best boat battery

2023-05-08

solar generator for rv

2023-05-08

solar power storage

2023-05-08

76.8V 105Ah Golf Cart LiFePo4 Battery Pack Waterproof Support CAN RS485 Bluetooth

2025-02-26

12V 150Ah 200Ah LiFePo4 Motive Battery Pack for Clean Car Electric Vehicle

2023-02-14

12V Rechargeable Lithium Ion 18650 Battery Pack 2000mAh

2023-02-14

HB-N300 300W Solar Power Station Black

2022-09-09

+85 High Temperature Lithium Ion Battery 18650 26650 Cylindrical Cell

2023-02-14

The Growing Impact of Energy Storage in the Global Market

2025-03-13

Balanced principle of battery pack

2023-02-15

What are the principles of using high-temperature batteries?best solar generator for home

2023-09-22

Lithium iron phosphate battery characteristics.lithium golf cart batteries maker

2023-04-04

Choosing the Best AGM Golf Cart Battery: A Guide to Performance and Longevity

2025-03-14

Lithium iron phosphate battery

2022-12-30

Health hazards of lithium batteries.24v deep cycle battery

2023-07-21

What problems can alien batteries solve?lithium marine batteries manufacturer

2023-03-24

Lithium battery chemical reaction

2023-06-01

Causes of failure in the use of lithium -phosphate iron batteries.lithium batteries for solar panels company

2023-03-23