http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-114883519-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_a2850382a6630be4997433b71bac48b2 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-13 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 |
| filingDate | 2022-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ec93f8012db75d52168ef122e11ce45b http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ac7389456e93ab5c87e40521484f4a8e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4e4ab30fa5e18319f1a38209542feae7 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5ded6350c748680a9953f72b6d766fb0 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_e28a35312453f1e5a8a4f251a14bcdcf http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_340e056ca57b007802d83b7eae3a4ccc http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d27895ae3b1444d2c7a7a34f070a2c22 |
| publicationDate | 2022-08-09-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-114883519-A |
| titleOfInvention | A positive electrode sheet and lithium ion battery |
| abstract | In order to overcome the problems of high impedance and insufficient high-temperature cycle life existing in the existing high-nickel lithium-ion battery, the present invention provides a positive electrode sheet, comprising a positive electrode current collector and a positive electrode material layer formed on the positive electrode current collector, characterized in that , the positive electrode material layer includes the high nickel positive electrode material shown in formula I and the compound shown in formula II: Li a Ni q Co y M z O 2 formula I; wherein, 0.9≤a≤1.2, 0.7≤q≤1 , y≥0, z≥0, and q+y+z=1, M is selected from one or both of Mn and Al; The positive electrode sheet satisfies the following conditions: 0.05≤(b/10)*(h/x)≤15; and 0.005≤b≤1, 0.7≤x≤1, 80≤h≤140. At the same time, the present invention also discloses a lithium ion battery including the above positive electrode sheet. The positive electrode sheet provided by the present invention can give full play to the synergistic effect between the compound shown in formula II and the high-nickel positive electrode material and the thickness of the positive electrode material layer, so that the high-nickel positive electrode material has higher structural stability and oxidation resistance, and improves the battery cycle and impedance performance. |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023174185-A1 |
| priorityDate | 2022-03-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 162.