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

other news


Home >  other news > 

What is the safety of customized lithium-ion batteries?portable power station with solar panel

source:other news release time:2023-08-26 Hits:0     Popular:Lithium-ion battery wholesale

  




  In order to avoid over discharge or overcharging of customized lithium-ion batteries caused by improper use, a triple protection mechanism is installed inside the single lithium-ion battery. One is the use of switching elements. When the temperature inside the battery rises, its resistance increases accordingly. When the temperature is too high, the power supply will automatically stop; The second is to choose appropriate partition materials. When the temperature rises to a certain value, the micron sized micropores on the partition will automatically dissolve, preventing lithium ions from passing through and stopping internal reactions in the battery; The third is to set a safety valve (which is the vent hole on the top of the battery). When the internal pressure of the battery rises to a certain value, the safety valve automatically opens to ensure the safety of the battery's use.

  Sometimes, although the battery itself has safety control measures, due to certain reasons, the control fails, and there is a lack of safety valve or gas cannot be released through the safety valve in time, causing the internal pressure of the battery to rise sharply and cause an explosion.

  In general, the total energy stored in lithium-ion batteries is inversely proportional to their safety. As the battery capacity increases, the battery volume also increases, leading to poor heat dissipation performance and a significant increase in the likelihood of accidents. For lithium-ion batteries used in mobile phones, the basic requirement is that the probability of safety accidents should be less than one in a million, which is also the minimum standard acceptable to the public. For large capacity lithium-ion batteries, especially those used in automobiles, it is particularly important to use forced cooling.

  Choosing a safer electrode material and lithium manganese oxide material ensures a fully charged state in terms of molecular structure. The lithium ions in the positive electrode are fully embedded in the negative electrode carbon pores, fundamentally avoiding the generation of dendrites. At the same time, the stable structure of lithium manganese oxide makes its oxidation performance much lower than that of lithium cobalt oxide, and the decomposition temperature exceeds 100 ℃ of lithium cobalt oxide. Even if internal short circuits (punctures), external short circuits, and overcharging occur due to external forces, the danger of combustion and explosion caused by the precipitation of lithium metal can be completely avoided.

  In addition, the use of lithium manganese oxide material can significantly reduce costs.

  To improve the performance of existing safety control technologies, the first step is to improve the safety performance of lithium-ion battery cells, which is particularly important for large capacity batteries. Choose a diaphragm with good thermal shutdown performance. The function of the diaphragm is to isolate the positive and negative poles of the battery while allowing the passage of lithium ions. When the temperature rises, it is closed before the diaphragm melts, causing the internal resistance to rise to 2000 ohms and stopping the internal reaction.

  When the internal pressure or temperature reaches the preset standard, the explosion-proof valve will open and begin to relieve pressure to prevent excessive accumulation of internal gas and deformation, ultimately causing the shell to burst.


Read recommendations:

dual purpose marine battery Vendor

solar powered generator

51.2V Modular Stacking Rack Mount Energy Storage System

Advantages of Ni-MH battery

What are the factors that affect the capacity of lithium-ion batteries shared by lithium-ion battery manufacturers?best portable power station

Share:

Last article:What are the good advantages of large capacity lithium batteries?solar battery for house

Next article:What is the fundamental reason for the ignition and explosion of polymer batteries.best batteries for solar power storage

related suggestion

solar energy storage batteries

2023-03-20

dual purpose marine battery wholesale

2023-04-07

lithium deep cycle marine battery manufacturer

2023-03-20

lithium batteries for boats manufacture

2023-03-20

marine battery for trolling motor Factory

2023-03-20

lithium golf cart batteries direct sales

2023-03-22

12 volt batteries

2023-05-08

24v deep cycle battery

2023-05-08

12v solar battery

2023-05-08

24 volt marine battery

2023-05-08

marine batteries for sale

2023-05-08

deep cell marine battery

2023-05-08

Golf Cart 51.2V 150Ah LiFePo4 Battery Pack

2022-09-29

51.2V Modular Stacking Rack Mount Energy Storage System

2022-10-19

32700 Special Battery Cell Explosion Proof Rechargeable Li-Ion Battery

2023-02-14

76.8V 48Ah LiFePO4 Battery for Electric Motorcycles Scooter Tricycle Rickshaw

2025-05-21

HB-S1200 1200W Waterproof IP54 Solar Portable Power Station Support Wireless Charge

2022-09-29

What are the technical requirements for the main parameters of soft pack lithium batteries?solar generator for home

2023-08-25

Power lithium battery is the "foundation" of the future of new energy cars.solar generator for camping

2023-06-05

Do I Need a 48V 100 Ah LiFePo4 Battery with an Inverter Built-in?

2022-12-26

Understanding HD2C 18650 and Other High-Performance Lithium-Ion Batteries for Industrial Use

2025-03-13

Where is the main application of new energy batteries?

2023-04-03

Factors affecting battery safety

2022-12-08

Lithium battery protective board connection

2023-05-16

How to analyze the temperature environment adaptation of polymer batteries?golf cart batteries price

2023-08-23

Research status of the protection of power lithium battery packs.solar battery storage system manufacture

2023-04-08

There are five common reasons for lithium ion battery explosion

2022-11-03