http://rdf.ncbi.nlm.nih.gov/pubchem/patent/GB-2606515-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_fc4336d376f51e8db6290bb64a1699dd |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0569 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0568 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-058 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-0567 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0525 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0567 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-058 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0569 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-0568 |
| filingDate | 2021-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_b921779c99cde5d068a4fcf77ab1ed30 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_fc19de1369eab51ee6a79742ad89a6bd http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_93a867fabf7bb71210560a3c4dfcecf4 |
| publicationDate | 2022-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | GB-2606515-A |
| titleOfInvention | Electrolyte compositions |
| abstract | An electrolyte composition for a lithium ion battery includes (a) 5-35wt% of lithium salt; (b) 2-10wt% of additive; and (c) 55-93wt% solvent. The lithium salt comprises (ai) a salt selected from lithium 2-trifluoromethyl-4,5-dicyanoimidazolide, lithium difluoro(oxalato)borate, lithium bis(oxalato) borate and lithium tetrafluroborate; and optionally (aii) a co-salt selected from lithium bis(trifluoromethanesulfonyl)imide and/or lithium bis(fluorosulfonyl)imide; wherein the molar ratio of the salt to co-salt is between 100:0 and 5:95, with the proviso that the composition does not comprise lithium bis(fluorosulfonyl)imide alongside lithium difluoro(oxalato)borate or lithium tetrafluroborate. The additive comprises vinylene carbonate and optionally, fluoroethylene carbonate. The solvent comprises either (ci) ethylene carbonate and 10-30mol% propylene carbonate, or (cii) γ-butyrolactone and optionally ethylene carbonate. The lithium concentration in the composition is preferably between 0.7M and 2.0M. The claimed composition is stable and has low volatility at temperatures above about 55°C, such that it can be used in preparation techniques involving elevated temperatures, most notably extrusion processes. The claimed compositions are also advantageous because they may passivate graphite (which can therefore be used as anode material), have a flash point above 100°C and a low vapour pressure, are stable to common cathode materials and have sufficient ionic conductivity and rate performance. |
| priorityDate | 2021-04-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 60.