Reveal the great changes of lithium battery structure -Lithium - Ion Battery Equipment
Excessive charging of lithium battery may damage its internal structure and permanently reduce battery capacity. We may use LNMO spinel to improve this problem.
The fluorescence analysis results show that the internal structure of the battery will be significantly damaged after only a few charges.
UlrikeBö, researcher of the German Institute of Electron Synchrotron (DESY); Dr. senberg and his team at the DESY X-ray synchrotron radiation source have directly observed the structural changes of lithium batteries for the first time. The fluorescence analysis of the researchers showed that the internal structure of the battery would be significantly damaged after only a few charges.
Rapid charging of lithium battery may cause permanent reduction of its capacity, and then lead to the deactivation of some energy storage structures. However, when charging is slow, such damage will not happen immediately.
Generally, lithium batteries have high charge density, but their storage capacity is greatly reduced after several times of charging and discharging. Lithium nickel manganese oxide spinel material, also known as LNMO spinel, provides a potential solution to this problem. With its high voltage of 4.7V, LNMO spinel has become a strong candidate for the next generation of energy storage system. These spinel electrodes are composed of small crystals or microcrystals. These crystals in turn connect with the conductive carbon and adhesive materials to form a thin layer.(Lithium - Ion Battery Equipment)
During the research, the researchers conducted 25 charge-discharge cycles for different electrodes at three rates, and then measured the distribution of the electrode components. It is observed that manganese and nickel will be filtered out of the crystal during rapid charging. In addition, it is also observed that the electrode will have a hole defect with a diameter of 0.1 mm. The damaged area will not be used for lithium storage.
In order to accurately determine the distribution of various elements in the electrode material, we used an innovative fluorescent detector called Maya detector. The instrument was developed by Brookhaven National Laboratory and CSIRO. It consists of nearly 400 independent elements that collect samples to excite fluorescence. Because of its high sensitivity and high resolution, the detector can locate multiple chemical elements at the same time.
However, researchers have not yet figured out where the dissolved manganese and nickel atoms go, and hope to solve this problem in future research.
The fluorescence analysis results show that the internal structure of the battery will be significantly damaged after only a few charges.
UlrikeBö, researcher of the German Institute of Electron Synchrotron (DESY); Dr. senberg and his team at the DESY X-ray synchrotron radiation source have directly observed the structural changes of lithium batteries for the first time. The fluorescence analysis of the researchers showed that the internal structure of the battery would be significantly damaged after only a few charges.
Rapid charging of lithium battery may cause permanent reduction of its capacity, and then lead to the deactivation of some energy storage structures. However, when charging is slow, such damage will not happen immediately.
Generally, lithium batteries have high charge density, but their storage capacity is greatly reduced after several times of charging and discharging. Lithium nickel manganese oxide spinel material, also known as LNMO spinel, provides a potential solution to this problem. With its high voltage of 4.7V, LNMO spinel has become a strong candidate for the next generation of energy storage system. These spinel electrodes are composed of small crystals or microcrystals. These crystals in turn connect with the conductive carbon and adhesive materials to form a thin layer.(Lithium - Ion Battery Equipment)
During the research, the researchers conducted 25 charge-discharge cycles for different electrodes at three rates, and then measured the distribution of the electrode components. It is observed that manganese and nickel will be filtered out of the crystal during rapid charging. In addition, it is also observed that the electrode will have a hole defect with a diameter of 0.1 mm. The damaged area will not be used for lithium storage.
In order to accurately determine the distribution of various elements in the electrode material, we used an innovative fluorescent detector called Maya detector. The instrument was developed by Brookhaven National Laboratory and CSIRO. It consists of nearly 400 independent elements that collect samples to excite fluorescence. Because of its high sensitivity and high resolution, the detector can locate multiple chemical elements at the same time.
However, researchers have not yet figured out where the dissolved manganese and nickel atoms go, and hope to solve this problem in future research.
