http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-102354755-B
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_94d1a747abfb3cffbad5ec34bd76bd20 |
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/Y02E60-10 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H01M4-58 |
| filingDate | 2011-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2013-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d436e3e02af838675190e4e4ae7bcc62 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_78027b782aea3204977dc80c5b0f76ce http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4fffd594f9e5060be534260097f27a41 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5140dec91561d1a76d007ab14a0c8248 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_5eeef0ec0ffaa392fce3781605796c48 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_95f0b082d48db6a8b18cd6d6cc0872c8 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d196f6d54a2edb41600013f9139b9f4e http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_eb844e1ecc59a2c880a8fdbd3888043d http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_75e6ccf8175288a992df691ba6488987 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_7e0b5e40f56ff7575353c9872da6281b |
| publicationDate | 2013-09-11-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-102354755-B |
| titleOfInvention | Preparation method of strontium and barium activated lithium iron phosphate positive pole material |
| abstract | The invention discloses a preparation method of a strontium and barium activated lithium iron phosphate positive pole material. The preparation method is characterized by comprising the following steps: mixing a lithium source, an iron source, a phosphate radical source, and a strontium source utilized as a raw material according to the ratio of 1:(0.00002-0.00005):(0.0003-0.003):1:1; in an absolute ethyl alcohol medium, carrying out high-speed ball-milling for 20 hours at the rotation rate of 200r/mimn and drying at the temperature of 105-120 DEG C, thereby obtaining a front body, and placing the drying obtained front body in a high temperature furnace; and carrying out high-temperature calcination for 24 hours at 500-750 DEG C in a common pure nitrogen atmosphere on to obtain the strontium, barium activating lithium iron phosphate positive pole material. According to the invention, strontium and the barium are replaced because of the doping, the feature and the particle diameter of a product are effectively controlled, thereby obtaining a stable lithium iron phosphate compound, the crystal lattice of the lithium iron phosphate compound is activated, the lithium ion diffusion coefficient is improved, and the loading capacity achieves 160.52 m A h/g in the first time; a charge-discharge platform relative to lithium electrode potential is around 3.5V, the initial discharge capacity exceeds 168 m A h/g, and the capacity decays around 1.2% after the charging and discharging are circled for100 times; compared with the unmixed LiFePO4 contrast embodiment, the specific capacity and the cyclical stability are greatly improved. |
| priorityDate | 2011-10-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 61.