| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_80787665b837ed3eb503bbcd27c0043a |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02P70-50
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-536 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-409
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-489
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M50-534
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0587
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-134 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-536 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-13
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-134
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-409
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-489
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M50-534
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-38
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0587 |
| filingDate |
2017-01-18-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e8bfe082787047a5a996b8e77495053
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_50d71cebe309b90463a211090057b7e6 |
| publicationDate |
2017-09-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
WO-2017163557-A1 |
| titleOfInvention |
Lithium ion secondary battery |
| abstract |
This lithium ion secondary battery contains a wound group having a positive electrode provided with a positive electrode mixture layer on the surface of a positive electrode collector, a negative electrode provided with a negative electrode mixture layer on the surface of the negative electrode collector, and a separator sandwiched between the positive electrode and the negative electrode, the wound group being formed by winding the positive electrode, the negative electrode, and the separator. The negative electrode mixture layer contains an Si alloy as a negative electrode active material. The positive electrode has a positive electrode mixture coatless portion wherein no positive electrode mixture layer is provided. With R representing the distance from the central axis to the outermost peripheral portion of the wound group, the positive electrode mixture coatless portion is disposed at a position that is R/2 or farther from the central axis in the direction of the outermost peripheral portion. The positive electrode mixture coatless portion is provided with a positive electrode collector lead. The separator is sandwiched between the positive electrode collector lead and the negative electrode mixture layer. In this manner, using a negative electrode having an active material containing Si, a short-circuit is prevented in a lithium ion secondary battery having a high energy density, allowing the life span thereof to be extended. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2023032445-A1 |
| priorityDate |
2016-03-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |