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

other news

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

Home  >  other news

How to improve the low temperature performance of lithium iron phosphate batteries?

source:other news release time:2023-02-06 Hits:     Popular:Lithium-ion battery wholesale

  household storage battery (34).jpg

  1. Surface covering and lowering the surface resistance of LFP particles

  At low temperature, the impedance of the electrode material interface will increase, and the ion diffusion rate will be reduced. Covering a layer of conductive layer on the LFP surface will effectively reduce the contact resistance between the electrode materials, thereby increasing the diffusion rate of ions entering and leaving the LFP.

  The generally covered material is carbon material. For example, the use of non -fixed carbon or carbon nanotubes or graphene can be used to reduce the impedance of the LFP electrode material interface. The other is to coat with metal or metal oxide. Studies have shown that CEO2 particles can be evenly distributed on the LFP surface. At low temperature, the CEO2 improvement of post -LFP's decapyles/embedded capacity and electrode dynamics have been significantly improved.

  2. The resistance of the body phase reduces the resistance of the LFP electrode

  Ion doping can form a vacancy in the LFP crystal structure, thereby promoting the diffusion of lithium ions in the electrode material.

  Studies have shown that the LFE0.92mg0.08 (PO4) 0.99F0.03 obtained by MG and F has good electrochemical properties at low temperatures. The doping of the two ions does not change the particle size and structure of the material, and also increases the ion conduction rate and electronic transfer rate.

  3. Optimization of electrolyte

  This may not only be applied to the LFP system, and the lithium battery of the three yuan or other organic electrolyte systems can be applied.

  At low temperature, the transmission of lithium ions in the electrode/electrolyte interface is the control step of its performance. Increasing low temperature performance, the important point is to increase the rate of electrochemical reactions in the interface. Therefore, the optimization of the SEI membrane is very important, and the nature of the SEI membrane is determined by the electrolyte and the surface of the electrode. Therefore, optimization of electrolyte can also improve the low temperature performance of lithium batteries.

  Studies have shown that the introduction of the solvent with long molecular chains or ester with a long molecular chain or higher molecular quality in the electrolyte can increase the stability of the SEI membrane, stabilize the lithium ion to stabilize, and reduce the polarization of the battery.

  In addition, the selection of lithium salts in electrolytes also affects lithium ion conductivity and the stability of SEI membrane.

  4. Optimization of charging strategy

  Use pulse current to quickly heat the battery temperature at low temperature.

  During the charging process, the ion movement and polarization in the electrolyte can promote the production of the internal heat of the lithium battery, which can effectively be used to improve its performance at low temperature.


Read recommendations:

deep cycle marine battery Processor

lifepo4 power station

14650 Lithium Ion Battery for Electric Toothbrush

Is it safe to use lithium batteries with high internal resistance and high energy?

Parameters test of mobile phone lithium battery

Share:

Last article:What happened when the distance between the lithium battery coating section often changes?

Next article:Precautions for lithium battery coating machine

related suggestion

solar power battery storage manufacture

2023-03-20

12v 100ah lithium ion battery

2023-03-22

lithium deep cycle marine battery sales

2023-04-07

lifepo4 solar battery Processor

2023-04-07

lithium deep cycle marine battery Manufacturing

2023-03-22

marine battery for trolling motor price

2023-03-20

lithium ion golf cart batteries

2023-05-08

36 volt golf cart batteries

2023-05-08

rv marine battery

2023-05-08

best solar generator for home backup

2023-05-08

deep cycle trolling motor battery

2023-05-08

solar generators for sale

2023-05-08

Household Energy Storage System Battery Pack Integrated with Inverter 16S2P 51.2V 100Ah

2022-10-20

AGV Robot 60V 72V 50Ah 60Ah Motive Battery Pack

2023-02-14

15S 48V 100Ah LiFePo4 Battery for Home Energy Storage Solar System

2023-06-19

Lithium Ion Battery 18650 Pack 11.1V 12V 2000mAh 3000mAh

2023-02-09

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

2022-09-29

Instruments and procedures for charging and discharging test of lithium-ion battery pack

2022-11-25

Do you want to use the newly purchased lithium battery after activation?

2022-11-09

Where is the main application of new energy batteries?

2023-04-03

Is the solid lithium ion battery good or liquid lithium ion battery?solar battery storage system

2023-03-08

How long does it take to charge nickel -hydride batteries?dual purpose marine battery

2023-05-17

Introduction to the main part of the lithium battery protection board.lithium ion golf cart batterie

2023-04-24

How to measure the quality of positive electrode materials for lithium-ion batteries?best batteries

2023-09-08

What are the characteristics of security patrol robots?

2022-12-28

Comparison analysis of nickel -hydride batteries and lithium batteries.lifepo4 power station

2023-03-17

The majority of lithium batteries used in communication base stations are 48V lithium iron phosphate

2022-11-09