The advantages and disadvantages of lithium manganate batteries and their classification introduction

Advantages and disadvantages of lithium manganate battery Lithium manganate battery refers to a battery that uses lithium manganate as the positive electrode. The nominal voltage of lithium manganate battery is 2.5~4.2v. Lithium manganate battery has low cost and good safety. And it is widely used. The advantages of lithium manganate batteries are good rate performance, easier preparation and lower cost. The disadvantage is that the high temperature performance and cycle performance are poor due to the dissolution of manganese. Through doping with aluminum and sintering granulation, the high temperature performance and cycle performance have been greatly improved, which can basically meet the actual use. In general, lithium manganate batteries have low cost, strong stability, strong low temperature performance, poor high temperature performance, and slightly faster attenuation. Classification of lithium manganate batteries 1. Layered lithium manganate LiMnO2, theoretical capacity 285mAh/g, voltage platform 4V. The layered structure is difficult to synthesize and unstable, and it is easy to generate Li2Mn2O4 spinel structure, which leads to a drop in voltage plateau, poor stability, and irreversible capacity degradation. 2. High voltage spinel lithium manganese oxide LiMn2O4, theoretical capacity 148mAh/g, voltage plateau 4.15. The high temperature performance is poor, and the capacity attenuation above 55℃ is serious. It is also easy to generate Li2Mn2O4 spinel structure, resulting in a drop in voltage plateau, poor stability, and irreversible capacity degradation. Lithium manganate is currently used in industry. 3. Lithium spinel manganese oxide Li2Mn2O4, low voltage (3V), low capacity, poor circulation, are studying how to prevent such things from appearing. Disclaimer: Some pictures and content of the articles published on this site are from the Internet. If there is any infringement, please contact to delete. Previous post: Are lithium-ion batteries or lead-acid batteries easy to use in winter?