METHOD FOR MANUFACTURING ELECTRODE MATERIAL

• Main Authors: SAWAI TAKEHIKO, NAKAGAWA JUN, HANAI KAZUMA, URAO KAZUNORI, SAITO SHINJI
• Format: Patent
• Language: English; Japanese
• Published: 17.12.2015
• Subjects: BASIC ELECTRIC ELEMENTS; CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES ORLIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide: an electrode material for long-life lithium batteries which enables the achievement of a high energy density and a high output, and enables the sustainment thereof over a long time; and a manufacturing method thereof, and a lithium battery.SOLUTION: An electrode material to be used for positive and negative electrodes of lithium batteries comprises: a composite which a carbon-based conductive material and an electrode active material are compound into. In the electrode material, the carbon-based conductive material is one subjected to a hydrophilic treatment by use of gas including fluorine gas. In the compounding, a mixture of the carbon-based conductive material subjected to the hydrophilic treatment, and the electrode active material is sintered in the presence of a fluorine resin. 【課題】高エネルギー密度と高出力を達成でき、また、それを永年に渡って持続可能な長寿命なリチウム電池用の電極材料およびその製造法、並びにリチウム電池を提供する。【解決手段】リチウム電池の正および負電極に使用される、炭素系導電材と電極活物質とが複合化された電極材料であり、この電極材料における、炭素系導電材はフッ素ガスを含むガスを用いて親水化処理された炭素系導電材であり、上記複合化はフッ素樹脂存在下において、上記親水化処理された炭素系導電材および上記電極活物質の混合物を焼成する。【選択図】図４