http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2020013718-A1
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_b4c0cf6d13d2539db84c38b6e28882c0 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M10-052 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-1393 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C01B32-21 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-587 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/H01M4-133 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M10-052 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-1393 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-587 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-133 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C01B32-00 |
| filingDate | 2019-07-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5e1e78a17188b0a0d0578da4e76d6452 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_174df34b60214beb3a9a00a997801f15 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_ff00676585d4c3a89e4f750ecb4b7201 |
| publicationDate | 2020-01-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | WO-2020013718-A1 |
| titleOfInvention | Method of manufacture of carbonaceous material for anode mass of lithium ion cell as well as material obtained using this method, and method of manufacture lithium ion cell anode using said material and anode obtained thereby |
| abstract | A method of manufacture of a carbonaceous material for an anode mass of a lithium ion cell involving high energy milling of a graphite in the presence of liquid medium, according to the present invention is characterized in that high energy milling is carried out in a non-metallic mill using energy of milling in the range of 10-34 Wh/g, preferably 22 Wh/g, wherein a mass ratio of a graphite to a dispersing agent is maintained in the range of 10:15-10:35, preferably 10:24. The obtained product has a developed specific surface area of 20-60 m2/g, and the oxidation degree of the graphite surface is more than 5%. A method of manufacture of a lithium ion cell anode, involving preparation of an anode mass comprising a graphite carbonaceous material with the addition of conductive carbon and polymer binding component, and then application of this mass on a conductive substrate, according to the present invention is characterized in that the amount of the graphite carbonaceous material in the anode mass is more than 70%, a preferably the anode mass comprises 80-90% of the graphite carbonaceous material, 5-10% of the conductive carbon and 5-10% of the polymer binding component. The obtained electrodes have packing of 1-5 mg/cm2, and the intercalation capacity in relation to lithium ions more than 372 mAh/g in the initial work cycles and a capacity more than 330 mAh/g in 100-th work cycle, during work under the load no less than 370 mA/g. The carbonaceous material obtained by a method according to the present invention and the anode made with this material, may be used in the most types of the lithium ion cells (Li-ion) as a main component or an additive for anode mass (of the mass of the negative electrode). This procedure is cheap and easy, and the obtained material is characterized by a greater electrochemical capacity than known materials. At the same time, the electrodes have high cyclic resistance and maintain more than 85% of the initial capacity in 100-th work cycle at charge and discharge with a high intensity current (more than 1C). |
| priorityDate | 2018-07-13-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 43.