The present disclosure concerns rechargeable batteries (i.e., secondary batteries) having large form factors that include cathode active materials such as, but not limited to, lithium iron phosphate (LFP) active material, lithium manganese iron phosphate (...

A positive electrode plate, a preparation method thereof, a secondary battery, and an electric apparatus. The positive electrode plate includes a current collector and a positive electrode film layer formed on at least one side of the current collector. Th...

Disclosed herein is a cathode for a lithium-ion battery having a formula: LiM[XO]Owhere, 0≤u≤1, 0≤v≤2 and 0≤x≤1, wherein M is a transition metal element of manganese or a mixture of manganese and iron, and X is an element of phosphorus, silicon...

A positive electrode active material includes secondary particles. Each of the secondary particles includes primary particles. Each of the primary particles includes an olivine-type phosphate compound. A cross section of the secondary particle consists of ...

One embodiment of the present invention provides a secondary battery which is stable in a high-potential state and/or a high-temperature state. The secondary battery includes a positive electrode and a negative electrode, and either or both of the positive...

Provided is a sodium-ion secondary battery having a high capacity and excellent safety. A sodium-ion secondary battery includes: a positive electrode containing a positive-electrode active material made of a crystallized glass containing crystals represent...

A negative electrode active material for a secondary battery includes composite particles. The composite particles include a lithium silicate phase and a silicon phase dispersed in the lithium silicate phase, wherein the silicon phase has lined portions in...

A nano cathode material usable for batteries and a method for preparing the same are provided. The cathode material is comprised of nano particles so that the specific surface area of such particles is increased, thereby allowing a suitable size distributi...