18650 rechargeable battery lithium 3.7v 3500mah
CH
About Us
Company Profile Development History Sales Network Partner Social Responsibility
Products
Rechargeable Battery Battery Packs Energy Storage Battery Primary Battery Handicraft Article
Subsidiary Company
SINO TECHNOLOGY SUNBEAM GREEN POWER DATAPOWER SEONG-HEE STD
Honor
Qualification Certificate Patent Certificate Honor Certificate
R&D
R&D Center Test Center
News
Company News Industry News
Contact Us
Other information
product
polymer lithium battery Primary battery Rechargeable Battery LR03 alkaline battery
18650 rechargeable battery lithium 3.7v 3500mah
18650 rechargeable battery lithium 3.7v 3500mah

Other information

Home  >  Other information

Analysis on overcharge safety of lithium battery.CR2354 battery

release time:2023-06-08 Hits:     Popular:AG11 battery

  

  The overcharge test is to simulate the potential safety hazards of the battery when the charger voltage detection is wrong, the charger fails or the wrong charger is used.

  The thermal runaway caused by overcharge may come from two aspects: joule heat generated by current on the one hand, and reaction heat generated by side reaction of positive and negative electrodes on the other. When the battery is overcharged, the negative pole voltage gradually increases. When the amount of lithium removal from the negative pole is too large, the process of lithium removal becomes more and more difficult, which leads to a sharp increase in the internal resistance of the battery, so a large amount of Joule heat is generated, which is more obvious when charging at a large rate. The high voltage positive oxidant in the overcharged state emits a lot of heat, and the negative electrode will also react exothermically with the electrolyte when the temperature rises. When the heat release rate is greater than the heat dissipation rate of the battery, and the temperature rises to a certain extent, thermal runaway will occur.

  Tobishim et al. studied the overcharge performance of aluminum shell square battery with LiCoO2 and LiMn2O4 as cathode materials respectively. The research results showed that the LiCoO2 cell would explode when charged to 10V at 2C current, while the LiMn2O4 cell did not smoke, fire or explode when overcharged at 2C/10V and 3C/10V respectively, and only bulged, which showed that Mn had better overcharge resistance than Co. Leising et al. studied the influence of different graphite proportion on the overcharge performance of LiCoO2 electric core. The results showed that the overcharge performance of the electric core mainly depends on the cathode material, and does not change with the increase of graphite content. This shows that the precipitation of lithium metal on the cathode during overcharge is not the key to affect the overcharge performance, but the thermal stability of LiCoO2 with excessive delithiation or the oxidation reaction of electrolyte on its surface.


Read recommendations:

803040 1000mAh 3.7V

How to Protect Safety in Customizing Robot Lithium Batteries.Column rechargeable battery

Material Classification of Lithium Batteries

601248 battery

li ion 18650 battery pack maker

Last article:High temperature safety analysis of lithium battery.CR2032 button cell batteries

Next article:Factors Affecting the Thermal Stability of Lithium Battery Electrolyte.102450 lipo battery

Popular recommendation

703048 battery wholesaler

2023-03-22

Ni-MH battery packs direct sales

2023-03-22

802540 battery manufacture

2023-03-22

18650 battery pack

2023-05-09

551235 polymer battery

2023-03-22

Lithium Battery LQ12-200

2022-08-19

Cabinet type energy storage battery 10KWH

2022-11-08

Ni-MH AAA1000mAh 1.2V

2022-07-01

Alkaline C Battery LR14

2022-11-11

801752 720mAh 3.7V

2022-08-19

Moving straps (single shoulder design)

2022-09-22

Colorful cup humidifier

2022-07-22

Lithium Battery GN7250

2022-08-19

Lithium-ion battery GN500

2022-07-29

502030 200MAH 3.7V

2023-06-12

R03 Carbon battery

2023-06-25

L1022 battery

2023-06-25

18650 battery 3.7v 6000mah

2023-06-25

lithium battery 18650

2023-06-25

LR1130 battery

2023-06-25

Production Process of Pouch - type Lithium - ion Batteries

2025-03-21

Lithium - Ion Batteries for Tablets

2025-04-11

What is the difference between lithium battery protection board and BMS (battery management system)?

2023-05-08

3.2v 500ah lifepo4 battery.Analysis of the Application of Power Lithium Battery in AGV Power Battery

2023-10-25

What is the difference between nickel -metal hydride battery and nickel -cadmium battery?energy stor

2023-05-12

the performance tests for lithium batteries.lithium battery for solar energy storage system Product

2023-05-06

Novelty of Lithium iron phosphate battery.solar energy storage lithium ion battery 15kwh 48v 100ah

2023-10-07

Low -temperature work battery introduction.lithium battery for solar energy storage system Processin

2023-04-24

Discussion on Protective Measures for Lithium Batteries.L822 battery

2023-06-13

AGV car lithium battery customization

2023-02-18
360° FACTORY VR TOUR
lithium ion battery 18650 priceWhatsapp
lithium ion battery 18650 price

lithium ion battery 18650 priceTel
+86 19925278095

lithium ion battery 18650 priceEmail
admin@sino-techgroup.com

TOP