subject: The choice of polymer electrolyte [print this page] The choice of polymer electrolyte The choice of polymer electrolyte
Electrolyte battery system is the ion carrier ( in terms of e- insulator must be used for polymer electrolyte lithium-ion batteries as far as possible meet the following conditions:dell laptop battery ASUS R2H battery
Processing of fine polymer film ;
room temperature conductivity Gao , Li-ion conductivity at low temperatures and higher ;
high temperature stability, not easy to burn ;
chemical stability,Dell Latitude D830 Battery, Dell MM165 Battery, Dell YD626 Battery, do not react with the electrodes ;
The choice of gel polymer electrolyte requirements
As a practical polymer electrolyte membrane must satisfy the following necessary conditions:DELL Inspiron 1526 battery
in a wide range , especially at low temperature with high ionic conductivity to reduce the battery internal resistance ;
lithium- ion transfer coefficient is essentially the same in order to eliminate concentration polarization ;
negligible electronic conductivity to ensure effective separation between the electrodes ;(Dell YD626 Battery)
on the electrode material has a high chemical stability and electrochemical stability;
organic solvent in the gel polymer electrolyte vapor pressure should be as low as possible ;
gel polymer electrolyte and the electrode active material and good adhesion between ;
All solvents were fixed in the polymer matrix , there is no free organic solvents to ensure that leakage does not occur ;
low price guarantee and the environment with good compatibility ;
production process as simple as possible , to facilitate mass production .
Ionic conductivity , electrochemical stability window , lithium ion transference number , etc. to characterize the gel polymer electrolyte .
Battery life
Battery into the battery life on hold life ( storage life > , a battery life ,Dell Latitude D830 Battery, Dell MM165 Battery, Dell YD626 Battery, rechargeable battery cycle life.
Battery storage life refer to the standard rules Ding or human cells under the conditions of charge storage time , generally until the end of the battery storage , battery capacity requirements remain some value , otherwise , be deemed not to meet the storage life Requirements, or as a storage life is short, the main factors affecting the storage life of the battery occurred within the physical, chemical, electrochemical changes .Lenovo IdeaPad U350 cells
A battery is the battery life under certain discharge continuous or intermittent discharge,Dell MM165 Battery, discharge to the termination voltage of the time , the main factors affect the life of the system is discharged , the battery capacity, active material utilization , resistance , etc. .
The cycle life of secondary battery is charging and discharging of a certain system, battery capacity reduced to the specified value before experienced the number of charging and discharging , or cycles , cycles . Affect the cycle life of secondary battery main factors : the battery inside the impurities , batteries and electrode structure , the nature of the electrolyte , the stability of active substances . The main impact of different factors of the battery not the same
