公开(公告)号：US20140248534A1

公开(公告)日：2014-09-04

申请号：US14352942

申请日：2012-11-08

申请人： Yuka Chikugo ,  Hitoshi Ishikawa ,  Yasutaka Kono ,  Ippei Waki ,  Koh Ishiguchi

发明人： Yuka Chikugo ,  Hitoshi Ishikawa ,  Yasutaka Kono ,  Ippei Waki ,  Koh Ishiguchi

IPC分类号： H01M4/62 ,  H01M4/04

CPC分类号： H01M4/0404 ,  H01M4/13 ,  H01M4/139 ,  H01M4/622 ,  H01M10/0525 ,  Y02E60/122 ,  Y02P70/54 ,  Y02T10/7011

摘要： A lithium ion secondary battery electrode according to the present invention includes (A) a non-fluorinated polymer; (B) an active material; (C) a thickener; and (D) a conductive auxiliary agent. An elution ratio of (A) the non-fluorinated polymer in an electrolytic solution solvent at 60° C. is equal to or less than 1.0 mass %, and a swelling ratio of (A) the non-fluorinated polymer in the electrolytic solution solvent at 60° C. is equal to or more than 10 mass % and equal to or less than 50 mass %.

摘要翻译： 根据本发明的锂离子二次电池电极包括（A）非氟化聚合物; （B）活性物质; （C）增稠剂; 和（D）导电助剂。 电解溶液中的（A）非氟化聚合物在60℃下的洗脱比等于或小于1.0质量％，电解溶液中的（A）非氟化聚合物的溶胀比 在60℃下等于或大于10质量％且等于或小于50质量％。

公开(公告)号：US20150104711A1

公开(公告)日：2015-04-16

申请号：US14401679

申请日：2013-05-30

申请人： Ippei Waki ,  Yasutaka Kono ,  Tomoyuki Ohta

发明人： Ippei Waki ,  Yasutaka Kono ,  Tomoyuki Ohta

IPC分类号： H01M4/133 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/587

CPC分类号： H01M4/133 ,  H01M4/366 ,  H01M4/587 ,  H01M4/622 ,  H01M4/625 ,  H01M10/0525 ,  H01M2004/021 ,  H01M2004/027 ,  Y02T10/7011

摘要： A negative electrode for a lithium ion secondary battery according to the present invention includes a negative electrode active material and a binder, in which the negative electrode active material satisfies the following requirements (A), (B), and (C):(A) graphite powder is used as a core material, and at least a part of a surface of the graphite powder is coated with a carbon material having lower crystallinity than the graphite powder;(B) a specific surface area measured using a nitrogen adsorption BET method is more than or equal to 0.8 m2/g and less than or equal to 5.3 m2/g; and(C) an amount of dibutyl phthalate absorption measured according to JIS K 6217-4 is more than or equal to 32 cm3/100 g and less than or equal to 45 cm3/100 g.

摘要翻译： 本发明的锂离子二次电池用负极包括负极活性物质和粘合剂，其中负极活性物质满足以下要求（A），（B）和（C）：（A ）石墨粉末作为核心材料，石墨粉末的至少一部分表面涂覆有比石墨粉末低的结晶度的碳材料; （B）使用氮吸附BET法测定的比表面积为0.8m 2 / g以上且小于或等于5.3m 2 / g; 和（C）根据JIS K 6217-4测量的邻苯二甲酸二丁酯吸收量大于或等于32cm 3 / 100g且小于或等于45cm 3 / 100g。

公开(公告)号：US20130029218A1

公开(公告)日：2013-01-31

申请号：US13577576

申请日：2011-02-08

申请人： Ippei Waki ,  Hideaki Sasaki ,  Takehiro Noguchi ,  Yasutaka Kono ,  Hitoshi Ishikawa

发明人： Ippei Waki ,  Hideaki Sasaki ,  Takehiro Noguchi ,  Yasutaka Kono ,  Hitoshi Ishikawa

IPC分类号： H01M10/0564

CPC分类号： H01M10/0567 ,  H01M4/587 ,  H01M4/622 ,  H01M10/0525 ,  H01M2300/0025

摘要： A nonaqueous electrolyte secondary battery comprising positive and negative electrodes capable of absorbing and desorbing lithium ions; a nonaqueous electrolytic solution; and a separator provided between the positive electrode and the negative electrode. The negative electrode comprises a negative electrode active material layer containing at least a styrene polymer as a binder in a content of 0.3 to 8.0 mass % based on the total mass of the negative electrode active material layer. The nonaqueous electrolytic solution contains at least a cyclic sulfonic acid ester including at least two sulfonyl groups in a content of 0.002 to 5.0 mass % based on the total mass of the nonaqueous electrolytic solution.

摘要翻译： 一种非水电解质二次电池，其包含能够吸收和解吸锂离子的正极和负极; 非水电解液; 以及设置在正极和负极之间的隔膜。 该负极包含至少含有作为粘合剂的苯乙烯聚合物的负极活性物质层，其含量相对于负极活性物质层的总质量为0.3〜8.0质量％。 该非水电解液至少含有至少两个磺酸基的环状磺酸酯，其含量相对于非水电解液的总质量为0.002〜5.0质量％。

公开(公告)号：US20130266847A1

公开(公告)日：2013-10-10

申请号：US13992142

申请日：2011-12-07

申请人： Takehiro Noguchi ,  Hideaki Sasaki ,  Makiko Uehara ,  Ippei Waki ,  Shinako Kaneko ,  Hiroshi Hatakeyama ,  Shinsaku Saitho ,  Yuukou Katou

发明人： Takehiro Noguchi ,  Hideaki Sasaki ,  Makiko Uehara ,  Ippei Waki ,  Shinako Kaneko ,  Hiroshi Hatakeyama ,  Shinsaku Saitho ,  Yuukou Katou

IPC分类号： H01M10/056

CPC分类号： H01M10/056 ,  H01M2/0285 ,  H01M2/0287 ,  H01M4/131 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M4/587 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0569 ,  H01M2300/0034 ,  H01M2300/0037

摘要： The object of an exemplary embodiment of the invention is to provide a lithium secondary battery which has high energy density by containing a positive electrode active substance operating at a potential of 4.5 V or higher with respect to lithium and which has excellent cycle property. An exemplary embodiment of the invention is an lithium secondary battery, which comprises a positive electrode comprising a positive electrode active substance and an electrolyte liquid comprising a nonaqueous electrolyte solvent; wherein the positive electrode active substance operates at a potential of 4.5 V or higher with respect to lithium; and wherein the nonaqueous electrolyte solvent comprises a fluorine-containing phosphate represented by a prescribed formula.

摘要翻译： 本发明的一个示例性实施方案的目的是提供一种通过含有相对于锂在4.5V或更高的电位下操作并且具有优异的循环性能的正极活性物质而具有高能量密度的锂二次电池。 本发明的一个示例性实施方案是一种锂二次电池，其包括正极，其包含正极活性物质和包含非水电解质溶剂的电解质液体; 其中所述正极活性物质相对于锂的电位为4.5V以上; 非水电解质溶剂包含由规定式表示的含氟磷酸酯。