| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_41ac7ff6ab574ca3737b892da2ebfe6f |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-028
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M2004-027
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-3835
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-374 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-486
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-482
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-36
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-052
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H02J7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-367
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-3648
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G01R31-382
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-386 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R31-387
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-48
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-42
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G01R31-385 |
| filingDate |
2018-11-22-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_56c3040d9b10b89de7d84e684da27b08 |
| publicationDate |
2019-06-21-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CN-109921105-A |
| titleOfInvention |
Secondary battery system and method for estimating stress of active material in secondary battery |
| abstract |
The present invention provides a secondary battery system and a method for estimating stress of an active material of the secondary battery. The secondary battery system includes an ECU for estimating the surface stress generated in the negative electrode active material due to the insertion or removal of lithium in the negative electrode of the battery pack. The ECU uses the linear relationship established between the difference obtained by subtracting the reference lithium amount from the lithium amount contained in the negative electrode active material and the surface stress, and calculates the estimated value of the surface stress from the difference. When the magnitude of the estimated value exceeds the magnitude of the yield stress (compressive stress or tensile stress) of the active material, the ECU sets the surface stress as the yield stress. On the other hand, when the magnitude of the estimated value is smaller than the magnitude of the yield stress Below, the estimated value was used as the surface stress. |
| priorityDate |
2017-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |