CARBON MATERIAL FOR NEGATIVE ELECTRODE FOR LITHIUM ION RECHARGEABLE BATTERY, CARBON MATERIAL FOR NEGATIVE ELECTRODE FOR LOW CRYSTALLINE CARBON- IMPREGNATED LITHIUM ION RECHARGEABLE BATTERY, NEGATIVE ELECTRODE PLATE, AND LITHIUM ION RECHARGEABLE BATTER
There is obtained a carbon material for lithium-ion secondary battery negative electrode, a low-crystalline carbon impregnated carbon material for lithium-ion secondary battery negative electrode, a negative electrode plate, and a lithium-ion secondary battery, each of which realizes a first charge/...
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| creator | HOSHI, KAZUHITO BITO, SHINGO OKUNI, TOMOYUKI OHTA, NAOTO YAMANAKA, AKIO |
| description | There is obtained a carbon material for lithium-ion secondary battery negative electrode, a low-crystalline carbon impregnated carbon material for lithium-ion secondary battery negative electrode, a negative electrode plate, and a lithium-ion secondary battery, each of which realizes a first charge/discharge cycle with less gas generation and provides a rapid charge/discharge. The carbon material is obtained by: blending and kneading a carbonaceous aggregate with a binder to form a composition; press molding the composition into an article; carbonizing the press molded article; graphitizing the article to obtain an artificial graphite block; milling the block; and carrying out particle size control. The carbon material has characteristics of: (1) R-value = (I 1360 /I 1580 ) ¥ 0.2, where R-value is defined by the ratio of D band to G band in Raman spectrum using Nd: YAG laser light of 532 nm wavelength; and (2) d(002) ¥ 0.336nm, and Lc(002) ¤ 50 nm, where d(002) and Lc(002) are crystallographic parameters calculated by Gakushin-method. The carbon material is used for the negative electrode plate of a lithium-ion secondary battery, and used in the lithium-ion secondary battery having therein the negative electrode plate. |
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The carbon material is obtained by: blending and kneading a carbonaceous aggregate with a binder to form a composition; press molding the composition into an article; carbonizing the press molded article; graphitizing the article to obtain an artificial graphite block; milling the block; and carrying out particle size control. The carbon material has characteristics of: (1) R-value = (I 1360 /I 1580 ) ¥ 0.2, where R-value is defined by the ratio of D band to G band in Raman spectrum using Nd: YAG laser light of 532 nm wavelength; and (2) d(002) ¥ 0.336nm, and Lc(002) ¤ 50 nm, where d(002) and Lc(002) are crystallographic parameters calculated by Gakushin-method. 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The carbon material is obtained by: blending and kneading a carbonaceous aggregate with a binder to form a composition; press molding the composition into an article; carbonizing the press molded article; graphitizing the article to obtain an artificial graphite block; milling the block; and carrying out particle size control. The carbon material has characteristics of: (1) R-value = (I 1360 /I 1580 ) ¥ 0.2, where R-value is defined by the ratio of D band to G band in Raman spectrum using Nd: YAG laser light of 532 nm wavelength; and (2) d(002) ¥ 0.336nm, and Lc(002) ¤ 50 nm, where d(002) and Lc(002) are crystallographic parameters calculated by Gakushin-method. The carbon material is used for the negative electrode plate of a lithium-ion secondary battery, and used in the lithium-ion secondary battery having therein the negative electrode plate.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRICITY LIME, MAGNESIA METALLURGY PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE |
| title | CARBON MATERIAL FOR NEGATIVE ELECTRODE FOR LITHIUM ION RECHARGEABLE BATTERY, CARBON MATERIAL FOR NEGATIVE ELECTRODE FOR LOW CRYSTALLINE CARBON- IMPREGNATED LITHIUM ION RECHARGEABLE BATTERY, NEGATIVE ELECTRODE PLATE, AND LITHIUM ION RECHARGEABLE BATTER |
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