| Predicate |
Object |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2220-20
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-505
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-021 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-133
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-505
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-587
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-0404
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-366
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-667
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-485 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-485
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-66
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-525
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-505 |
| filingDate |
2018-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
2021-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate |
2021-06-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-111129503-B |
| titleOfInvention |
A kind of negative pole piece and secondary battery |
| abstract |
The present invention provides a negative electrode sheet, comprising a negative electrode current collector and a multi-layer active material layer formed on the negative electrode current collector; the multi-layer active material layer at least includes a first active material layer and a second active material layer; a first active material layer; The active material layer contains a first negative electrode active material, and the second active material layer contains a second negative electrode active material; the ratio of the gram capacity of the negative electrode active material of the first active material layer to its thickness is 3.5-10.0. The ratio of the gram capacity of the negative electrode active material of the second active material layer to its thickness is 6.5 to 23.0. The battery using the negative electrode sheet of the present invention can have high energy density and good cycle life at the same time. |
| priorityDate |
2018-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |