FIELD: electricity.
SUBSTANCE: composite cathode material for lithium-ion batteries is proposed, characterized by an increased specific capacity during fast charging-discharging, consisting of carbon-coated lithium-iron phosphate with an olivine structure (LiFePO4) and silver at the following component ratio, wt %: lithium-iron phosphate (LiFePO4) 75÷98.9, silver 0.01÷5, carbon 1÷20, wherein the size of the lithium-iron phosphate particles is from 20 to 500 nm, and the thickness of the carbon coating is from 1 to 8 nm.
EFFECT: composite cathode material provides an increase in specific capacity of the material for lithium-ion batteries during charging-discharging speed above 5C.
3 dwg, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| NANO-DIMENSION COMPOSITE MATERIAL CONTAINING MODIFIED NANO-DIMENSION LITHIUM-IRON PHOSPHATE AND CARBON | 2009 |
|
RU2402114C1 |
| COMPOSITE CATHODE MATERIAL | 2012 |
|
RU2492557C1 |
| METHOD TO PRODUCE HIGHLY DISPERSED CATHODE MATERIALS LiFeMPO/C WITH OLIVINE STRUCTURE | 2010 |
|
RU2444815C1 |
| METHOD FOR CREATION OF HOMOGENEOUS CARBON COATING WITH CONTROLLED THICKNESS ON SURFACE OF CATHODE MATERIAL FOR METAL-ION ACCUMULATORS AND CATHODE MATERIAL PRODUCED BY SAID METHOD | 2019 |
|
RU2723638C1 |
| METHOD OF PRODUCING ACTIVE MATERIAL OF CATHODE BASED ON LITHIUM ENRICHED PHOSPHATE LIFEPO WITH OLIVINE STRUCTURE, ELECTRODE MASS AND CATHODE OF LITHIUM-ION BATTERY | 2019 |
|
RU2727620C1 |
| COMPOSITE CATHODE MATERIAL FOR LITHIUM-ION BATTERIES | 2014 |
|
RU2584678C1 |
| METHOD OF PRODUCING HIGH-POWER CATHODE MATERIAL BASED ON LiFeMnCoPO SOLID SOLUTION WITH AN OLIVINE STRUCTURE FOR LITHIUM-ION BATTERIES | 2018 |
|
RU2684895C1 |
| METHOD OF PRODUCING CATHODE MATERIAL WITH OLIVINE STRUCTURE FOR LITHIUM SELF-CONTAINED POWER GENERATION | 2011 |
|
RU2482572C2 |
| CATHODE ACTIVE MATERIAL BASED ON LITHIATED IRON PHOSPHATE WITH MANGANESE MODIFYING ADDITIVE | 2011 |
|
RU2453950C1 |
| LITHIUM-ION ACCUMULATOR | 2015 |
|
RU2608598C2 |
