公开(公告)号：US08795889B2

公开(公告)日：2014-08-05

申请号：US13003280

申请日：2009-07-07

申请人： Maiko Saka ,  Yuichiro Imanari ,  Taketsugu Yamamoto

发明人： Maiko Saka ,  Yuichiro Imanari ,  Taketsugu Yamamoto

IPC分类号： H01M4/13

CPC分类号： C01B25/45 ,  H01M2/1653 ,  H01M2/1686 ,  H01M4/5825 ,  H01M10/054

摘要： The present invention provides a transition metal phosphate and a production process thereof, a positive electrode, and a sodium secondary battery. The transition metal phosphate contains sodium (Na), phosphorus (P) and a transition metal element and having a BET specific surface area of 1 m2/g to 50 m2/g. The process for producing a transition metal phosphate comprises steps (1) and (2): (1) a step of bringing a phosphorus (P) source, a sodium (Na) source, an M source (M is one or more transition metal elements) and water into contact with each other, and obtaining a liquid material thereby, and (2) a step of separating water from the liquid material and obtaining a transition metal phosphate thereby.

摘要翻译： 本发明提供过渡金属磷酸盐及其制造方法，正极和钠二次电池。 过渡金属磷酸盐含有钠（Na），磷（P）和过渡金属元素，BET比表面积为1m 2 / g至50m 2 / g。 制备过渡金属磷酸盐的方法包括步骤（1）和（2）：（1）将磷（P）源，钠（Na）源，M源（M是一种或多种过渡金属 元素）和水彼此接触，从而获得液体材料，以及（2）从液体材料中分离水并从其获得过渡金属磷酸盐的步骤。

公开(公告)号：US20120276438A1

公开(公告)日：2012-11-01

申请号：US13003280

申请日：2009-07-07

申请人： Maiko Saka ,  Yuichiro Imanari ,  Taketsugu Yamamoto

发明人： Maiko Saka ,  Yuichiro Imanari ,  Taketsugu Yamamoto

IPC分类号： H01M4/58 ,  H01M2/14

CPC分类号： C01B25/45 ,  H01M2/1653 ,  H01M2/1686 ,  H01M4/5825 ,  H01M10/054

摘要： The present invention provides a transition metal phosphate and a production process thereof, a positive electrode, and a sodium secondary battery. The transition metal phosphate contains sodium (Na), phosphorus (P) and a transition metal element and having a BET specific surface area of 1 m2/g to 50 m2/g. The process for producing a transition metal phosphate comprises steps (1) and (2): (1) a step of bringing a phosphorus (P) source, a sodium (Na) source, an M source (M is one or more transition metal elements) and water into contact with each other, and obtaining a liquid material thereby, and (2) a step of separating water from the liquid material and obtaining a transition metal phosphate thereby.

摘要翻译： 本发明提供过渡金属磷酸盐及其制造方法，正极和钠二次电池。 过渡金属磷酸盐含有钠（Na），磷（P）和过渡金属元素，BET比表面积为1m 2 / g至50m 2 / g。 制备过渡金属磷酸盐的方法包括步骤（1）和（2）：（1）将磷（P）源，钠（Na）源，M源（M是一种或多种过渡金属 元素）和水彼此接触，从而获得液体材料，以及（2）从液体材料中分离水并从其获得过渡金属磷酸盐的步骤。

公开(公告)号：US20120258351A1

公开(公告)日：2012-10-11

申请号：US13515726

申请日：2010-12-15

申请人： Maiko Saka ,  Yuichiro Imanari

发明人： Maiko Saka ,  Yuichiro Imanari

IPC分类号： H01M4/525 ,  H01M2/18

CPC分类号： H01M4/505 ,  B82Y30/00 ,  C01G45/1242 ,  C01G53/50 ,  C01P2002/32 ,  C01P2002/54 ,  C01P2002/76 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  H01M4/364 ,  H01M4/525 ,  Y02E60/122

摘要： The present invention provides an electrode active material, an electrode and a non-aqueous electrolyte secondary battery. The electrode active material contains the following powder (A) and powder (B):(A) a powder of a lithium mixed metal oxide that is represented by the following formula (1) and has a layered rock-salt type crystal structure, the powder having a BET specific surface area of from 3 m2/g to 30 m2/g, Li(Ni1-(x+y)MnxFey)O2  (1) wherein x is within a range of more than 0 to less than 1, y is within a range of more than 0 to not more than 0.1, and x+y is within a range of more than 0 to less than 1; (B) a powder of a lithium mixed metal oxide that has a spinel type crystal structure. The electrode contains the electrode active material. The non-aqueous electrolyte secondary battery includes the electrode as a positive electrode.

摘要翻译： 本发明提供电极活性物质，电极和非水电解质二次电池。 电极活性物质含有下述粉末（A）和粉末（B）：（A）由下式（1）表示的锂复合金属氧化物粉末，具有层状岩盐型晶体结构， 具有3m 2 / g至30m 2 / g的BET比表面积的粉末，Li（Ni1-（x + y）Mn x Fey）O 2（1）其中x在0至小于1的范围内，y 在大于0至不大于0.1的范围内，x + y在大于0至小于1的范围内; （B）具有尖晶石型晶体结构的锂复合金属氧化物粉末。 电极含有电极活性物质。 非水电解质二次电池包括作为正极的电极。

公开(公告)号：US20120264019A1

公开(公告)日：2012-10-18

申请号：US13517140

申请日：2010-12-15

申请人： Maiko Saka

发明人： Maiko Saka

IPC分类号： H01M4/485 ,  H01M4/505 ,  H01M4/525

CPC分类号： C01B25/45 ,  H01M4/505 ,  H01M4/525 ,  H01M4/5825 ,  H01M10/052

摘要： The present invention provides an electrode active material, an electrode and a sodium secondary battery. The electrode active material contains the following powder (A) and powder (B): (A) a powder of a transition metal sodium phosphate, the powder having a BET specific surface area of from 1 m2/g to 100 m2/g, (B) a powder of a mixed metal oxide or a powder of a transition metal lithium phosphate or both. The electrode has the electrode active material. The non-aqueous electrolyte secondary battery has the electrode as a positive electrode.

摘要翻译： 本发明提供一种电极活性物质，电极和钠二次电池。 电极活性物质含有以下粉末（A）和粉末（B）：（A）过渡金属磷酸钠的粉末，BET比表面积为1m 2 / g〜100m 2 / g的粉末（ B）混合金属氧化物或过渡金属锂磷酸盐粉末或两者的粉末。 电极具有电极活性材料。 非水电解质二次电池具有作为正极的电极。

公开(公告)号：US09899665B2

公开(公告)日：2018-02-20

申请号：US13056912

申请日：2009-07-29

申请人： Taketsugu Yamamoto ,  Hideaki Nakajima ,  Hiroshi Inukai ,  Shigekazu Ohmori ,  Chikara Murakami ,  Daisuke Nakaji ,  Hidekazu Yoshida ,  Maiko Saka

发明人： Taketsugu Yamamoto ,  Hideaki Nakajima ,  Hiroshi Inukai ,  Shigekazu Ohmori ,  Chikara Murakami ,  Daisuke Nakaji ,  Hidekazu Yoshida ,  Maiko Saka

IPC分类号： H01M4/136 ,  H01M4/58 ,  H01M4/04 ,  H01M4/587 ,  H01M10/0569

CPC分类号： H01M4/136 ,  H01M4/58 ,  H01M4/587 ,  H01M10/0569 ,  Y10T29/49108

摘要： Disclosed is a sodium secondary battery. The sodium secondary battery comprises a first electrode and a second electrode comprising a carbonaceous material. The carbonaceous material satisfies one or more requirements selected from the group consisting of requirements 1, 2, 3 and 4. Requirement 1: R value (=ID/IG) obtained by Raman spectroscopic measurement is 1.07 to 3. Requirement 2: A value and σA value obtained by small angle X-ray scattering measurement are −0.5 to 0 and 0 to 0.010, respectively. Requirement 3: for an electrode comprising an electrode mixture obtained by mixing 85 parts by weight of the carbonaceous material with 15 parts by weight of poly(vinylidene fluoride), the carbonaceous material in the electrode after being doped and dedoped with sodium ions is substantially free from pores having a size of not less than 10 nm. Requirement 4: Q1 value obtained by a calorimetric differential thermal analysis is not more than 800 joules/g.

公开(公告)号：US08852805B2

公开(公告)日：2014-10-07

申请号：US13515726

申请日：2010-12-15

申请人： Maiko Saka ,  Yuichiro Imanari

发明人： Maiko Saka ,  Yuichiro Imanari

IPC分类号： H01M4/50 ,  H01M4/525 ,  H01M2/16 ,  H01M4/505 ,  H01M4/36 ,  C01G53/00 ,  C01G45/12 ,  B82Y30/00

CPC分类号： H01M4/505 ,  B82Y30/00 ,  C01G45/1242 ,  C01G53/50 ,  C01P2002/32 ,  C01P2002/54 ,  C01P2002/76 ,  C01P2004/62 ,  C01P2004/64 ,  C01P2006/12 ,  H01M4/364 ,  H01M4/525 ,  Y02E60/122

摘要： The present invention provides an electrode active material, an electrode and a non-aqueous electrolyte secondary battery. The electrode active material contains the following powder (A) and powder (B):(A) a powder of a lithium mixed metal oxide that is represented by the following formula (1) and has a layered rock-salt type crystal structure, the powder having a BET specific surface area of from 3 m2/g to 30 m2/g, Li(Ni1−(x+y)MnxFey)O2  (1) wherein x is within a range of more than 0 to less than 1, y is within a range of more than 0 to not more than 0.1, and x+y is within a range of more than 0 to less than 1; (B) a powder of a lithium mixed metal oxide that has a spinel type crystal structure. The electrode contains the electrode active material. The non-aqueous electrolyte secondary battery includes the electrode as a positive electrode.

摘要翻译： 本发明提供电极活性物质，电极和非水电解质二次电池。 电极活性物质含有下述粉末（A）和粉末（B）：（A）由下式（1）表示的锂复合金属氧化物粉末，具有层状岩盐型晶体结构， 具有3m 2 / g至30m 2 / g的BET比表面积的粉末，Li（Ni1-（x + y）Mn x Fey）O 2（1）其中x在0至小于1的范围内，y 在大于0至不大于0.1的范围内，x + y在大于0至小于1的范围内; （B）具有尖晶石型晶体结构的锂复合金属氧化物粉末。 电极含有电极活性物质。 非水电解质二次电池包括作为正极的电极。

公开(公告)号：US09287554B2

公开(公告)日：2016-03-15

申请号：US13819479

申请日：2011-08-22

申请人： Maiko Saka ,  Cedric Pitteloud ,  Tetsuri Nakayama ,  Kenji Takamori

发明人： Maiko Saka ,  Cedric Pitteloud ,  Tetsuri Nakayama ,  Kenji Takamori

IPC分类号： H01M4/131 ,  H01M4/505 ,  H01M4/525 ,  C01G53/00

CPC分类号： H01M4/131 ,  C01G53/50 ,  C01P2002/76 ,  C01P2006/12 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122

摘要： The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g: LixM1yM31-yO2  (I) wherein M1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M3 is at least one transition metal element other than M1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.

摘要翻译： 本发明提供一种正极活性物质。 正极活性物质由下式（I）表示，BET比表面积大于5m 2 / g且不大于15m 2 / g：LixM1yM31-yO2（I）其中M1为至少一个跃迁 选自元素周期表第5族元素和第6族元素的金属元素，M3是除M1以外的至少一种过渡金属元素，选自不含Fe的过渡金属元素，x不小于0.9且不大于1.3，以及 y大于0且小于1。

公开(公告)号：US20130164623A1

公开(公告)日：2013-06-27

申请号：US13819479

申请日：2011-08-22

申请人： Maiko Saka ,  Cedric Pitteloud ,  Tetsuri Nakayama ,  Kenji Takamori

发明人： Maiko Saka ,  Cedric Pitteloud ,  Tetsuri Nakayama ,  Kenji Takamori

IPC分类号： H01M4/131

CPC分类号： H01M4/131 ,  C01G53/50 ,  C01P2002/76 ,  C01P2006/12 ,  H01M4/485 ,  H01M4/505 ,  H01M4/525 ,  H01M10/052 ,  Y02E60/122

摘要： The present invention provides a positive electrode active material. The positive electrode active material is represented by the following formula (I) and has a BET specific surface area of larger than 5 m2/g and not larger than 15 m2/g: LixM1yM31-yO2  (I) wherein M1 is at least one transition metal element selected from Group 5 elements and Group 6 elements of the Periodic Table, M3 is at least one transition metal element other than M1 and selected from among transition metal elements excluding Fe, x is not less than 0.9 and not more than 1.3, and y is more than 0 and less than 1.

摘要翻译： 本发明提供一种正极活性物质。 正极活性物质由下式（I）表示，BET比表面积大于5m 2 / g且不大于15m 2 / g：LixM1yM31-yO2（I）其中M1为至少一个跃迁 选自元素周期表第5族元素和第6族元素的金属元素，M3是除M1以外的至少一种过渡金属元素，选自不含Fe的过渡金属元素，x不小于0.9且不大于1.3，以及 y大于0且小于1。

公开(公告)号：US20120258359A1

公开(公告)日：2012-10-11

申请号：US13517072

申请日：2010-12-15

申请人： Maiko Saka

发明人： Maiko Saka

IPC分类号： H01M4/04 ,  H01M4/64

CPC分类号： H01M4/136 ,  C01B25/45 ,  H01M4/1397 ,  H01M4/5825 ,  H01M10/054

摘要： The present invention provides a method for producing an electrode and a method for producing an electrode paste, and a sodium secondary battery. The method for producing an electrode includes the following steps (1) to (5) in this order: (1) a step of bringing a raw material of P (phosphorus), a raw material of A (wherein A represents one or more elements selected from the group consisting of alkali metal elements and A comprises Na), a raw material of M (wherein M represents one or more elements selected from the group consisting of transition metal elements), and water into contact with each other and generating a liquid-like material thereby, (2) a step of heating the liquid-like material and generating a precipitate of an electrode active material thereby, and then collecting the precipitate by solid-liquid separation, (3) a step of mixing the collected precipitate and a binder and producing an electrode paste thereby, (4) a step of applying the electrode paste on a current collector and forming an applied film thereby, and (5) a step of drying the applied film and producing an electrode thereby. The sodium secondary battery has the electrode produced by the method as a positive electrode. The method for producing the electrode paste includes the following steps (11) to (13) in this order: (11) a step of bringing a raw material of P (phosphorus), a raw material of A (wherein A represents one or more elements selected from the group consisting of alkali metal elements and A comprises Na), a raw material of M (wherein M represents one or more elements selected from the group consisting of transition metal elements), and water into contact with each other and generating a liquid-like material thereby, (12) a step of heating the liquid-like material and generating a precipitate of an electrode active material thereby, and then collecting the precipitate by solid-liquid separation, and (13) a step of mixing the collected precipitate and a binder and producing an electrode paste thereby.

公开(公告)号：US20120199785A1

公开(公告)日：2012-08-09

申请号：US13500524

申请日：2010-10-05

申请人： Maiko Saka

发明人： Maiko Saka

IPC分类号： H01M4/58 ,  C01B25/30

CPC分类号： H01M4/5825 ,  C01B25/45 ,  H01M10/054

摘要： The present invention provides a transition metal phosphate and a sodium secondary battery. The transition metal phosphate contains Na, P and M where M represents one or more elements selected from the group consisting of transition metal elements, wherein a value of I/I0 determined by the following powder X-ray diffraction measurement is 0.6 or less: the powder X-ray diffraction measurement is a method in which an X-ray diffraction pattern is produced by delivering a Cu Kα ray to a mixture composed of the transition metal phosphate and silicon in a transition metal phosphate:silicon weight ratio of 8:1, and then a value of I/I0 is determined by dividing I by I0 where I is the intensity of a maximum peak of the transition metal phosphate and I0 is the intensity of the maximum peak of the silicon in the X-ray diffraction pattern.

摘要翻译： 本发明提供过渡金属磷酸盐和钠二次电池。 过渡金属磷酸盐含有Na，P和M，其中M表示选自过渡金属元素中的一种或多种元素，其中通过以下粉末X射线衍射测量确定的I / I0值为0.6以下： 粉末X射线衍射测定是将过渡金属磷酸盐：硅重量比为8:1的CuKα射线输送到由过渡金属磷酸盐和硅组成的混合物中而制造的X射线衍射图的方法， 然后通过将I除以I0来确定I / I0的值，其中I是过渡金属磷酸盐的最大峰的强度，I 0是X射线衍射图中硅的最大峰的强度。