-
公开(公告)号：US20200064409A1
公开(公告)日：2020-02-27
申请号：US16346883
申请日：2016-11-07
发明人： Atsushi HORAI , Gentaro KANO , Hiroyuki TANAKA
IPC分类号： G01R31/389 , H01M10/48 , G01R31/3842
摘要： A short circuit detection device has a voltage sensor and a control unit. The voltage sensor detects a voltage of a secondary battery. The control unit determines whether a first voltage value of the voltage of the secondary battery discharging to a load is below a threshold value. Upon determining the first voltage value is below the threshold value, the control unit adjusts the load to reduce the current that flows from the secondary battery to the load. The control unit then determines whether a second voltage value of the voltage of the secondary battery after the adjustment of the load is less than the first voltage value. Upon determining the second voltage value is less than the first voltage value, control unit recognizes that an internal short circuit of the secondary battery has occurred.
-
2.发明申请POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME 有权用于非水电解质二次电池的正极和不使用电解质的非水电解质二次电池公开(公告)号：US20160028073A1
公开(公告)日：2016-01-28
申请号：US14776010
申请日：2014-03-13
发明人： Kenji OHARA , Yoshiaki NITTA , Satoru ICHIKAWA , Gentaro KANO , Manabu NISHIJIMA , Osamu SHIMAMURA , Fumihiro KAWAMURA , Kousuke HAGIYAMA , Shigeo IBUKA , Manabu KASEDA , Masanori SUENAGA , Tamaki HIRAI , Masahiro TAKAYA , Kuniharu NOMOTO
IPC分类号： H01M4/36 , H01M10/0525 , H01M2/02 , H01M4/505 , H01M4/525 , H01M10/0585
CPC分类号： H01M4/364 , H01M2/0217 , H01M2/0285 , H01M2/16 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0585 , H01M2004/021 , H01M2004/028 , H01M2220/20 , Y02E60/122
摘要： [Object] Provided is a means for improving cycle characteristics by suppressing electrode deterioration resulting from non-uniformity of voltage across an electrode plane in a high-capacity and large-area non-aqueous electrolyte secondary battery that includes lithium nickel-based composite oxide as a positive electrode active substance.[Solving Means] Disclosed is a positive electrode for a non-aqueous electrolyte secondary battery used in a non-aqueous electrolyte secondary battery in which the ratio value of battery area (projected area of the battery including the battery outer casing body) to rated capacity is 5 cm2/Ah or more and the rated capacity is 3 Ah or more, the positive electrode comprising a positive electrode current collector and a positive electrode active substance layer that is formed on a surface of the positive electrode current collector and has a positive electrode active substance containing a lithium nickel-based composite oxide and a spinel type lithium manganese composite oxide, in which, when the average secondary particle diameter (D50) of the lithium nickel-based composite oxide is D50(A) [μm], the content ratio of the lithium nickel-based composite oxide in the positive electrode active substance layer is A [% by mass], the average secondary particle diameter (D50) of the spinel type lithium manganese composite oxide is D50(B) [μm], and the content ratio of the spinel type lithium manganese composite oxide in the positive electrode active substance layer is B [% by mass], the positive electrode satisfies the following Mathematical Formula 1 and Mathematical Formula 2: [Math. 1] 0.5≦D50(A)/D50(B)≦2.0 MathematicalFormula1: B/(A+B)≧0.2 MathematicalFormula2:
摘要翻译： 本发明提供一种用于通过抑制由包含锂镍基复合氧化物的大容量和大面积非水电解质二次电池中的电极平面上的电压的不均匀性引起的电极劣化的改善循环特性的手段 正极活性物质。 [解决方案]公开了一种非水电解质二次电池中使用的非水电解质二次电池用正极，其中电池面积（包括电池外壳体的电池的投影面积）与额定容量的比值 为5cm 2 / Ah以上，额定容量为3Ah以上，所述正极包含正极集电体和正极活性物质层，所述正极集电体和正极活性物质层形成在正极集电体的表面，具有正极 含有锂镍系复合氧化物和尖晶石型锂锰复合氧化物的活性物质，其中，当锂镍系复合氧化物的平均二次粒径（D50）为D50（A）[μm]时，含量 锂镍系复合氧化物在正极活性物质层中的比例为A [质量％]，尖晶石型l的平均二次粒径（D50） 锂锰复合氧化物为D50（B）[μm]，正极活性物质层中的尖晶石型锂锰复合氧化物的含有比例为B [质量％]，正极满足下列数学式1， 数学公式2：[数学式 1] 0.5＆nlE; D50（A）/ D50（B）＆nlE; 2.0数学方法1：B /（A + B）≥0.2数学方法2：
-
公开(公告)号：US20200028145A1
公开(公告)日：2020-01-23
申请号：US16484206
申请日：2017-03-03
发明人： Gentaro KANO , Atsushi HORAI , Kazuki ARIHARA , Hajime SATOU , Yasuhiko OHSAWA , Ryoichi SENBOKUYA , Maki CHUMON , Eiji MINEGISHI
IPC分类号： H01M2/34 , H01M10/04 , H01M10/0565 , H01M10/0585 , H01M2/26 , H01M2/30 , G01R31/02 , H01M10/44
摘要： A secondary battery is provided with a power generation element, an electroconductive member, an external short circuit, a current detector and an external discharge safety circuit. The power generation element has a unit cell layer that includes a positive electrode, a separator and a negative electrode stacked in that order. The electroconductive member is disposed on one outward side of the power generation element with an insulation member interposed therebetween. A lead wire connects the electroconductive member with the negative electrode tab. The current detector detects whether or not current is flowing to the lead wire. The external discharge safety circuit is provided to short-circuits a path between the positive electrode tab and the negative electrode tab outside the power generation element while current detector detects a current.
-
公开(公告)号：US20160190549A1
公开(公告)日：2016-06-30
申请号：US14786787
申请日：2014-04-23
发明人： Kenji OHARA , Yoshiaki NITTA , Gentaro KANO , Tomoya KUBOTA , Masanori AOYAGI
CPC分类号： H01M4/364 , H01M2/0285 , H01M2/0287 , H01M2/1686 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/052 , H01M2004/021 , Y02T10/7011
摘要： A non-aqueous electrolyte secondary battery has the internal resistance of 10 Ω/Ah or less (SOC of 50%) and has a power generating element containing the following: a positive electrode obtained by forming, on the surface of a positive electrode current collector, a positive electrode active substance layer containing a positive electrode active substance; a negative electrode obtained by forming, on the surface of a negative electrode current collector, a negative electrode active substance layer containing a negative electrode active substance; and a separator. The positive electrode active substance is made to contain a spinel type lithium manganese composite oxide and a lithium nickel-based composite oxide, and the mixing ratio of the lithium nickel-based composite oxide is 50 to 70% by weight relative to the total 100% by weight of the spinel type lithium manganese composite oxide and the lithium nickel-based composite oxide.
摘要翻译： 非水电解质二次电池的内部电阻为10Ω·OHgr / Ah以下（SOC为50％），并且具有包含以下的发电元件：通过在正极电流的表面上形成的正极 集电体，含有正极活性物质的正极活性物质层; 通过在负极集电体的表面上形成含有负极活性物质的负极活性物质层而得到的负极; 和分隔符。 使正极活性物质含有尖晶石型锂锰复合氧化物和锂镍系复合氧化物，锂镍系复合氧化物的混合比相对于总计100重量％为50〜70重量％ 的尖晶石型锂锰复合氧化物和锂镍系复合氧化物。
-
5.发明申请POSITIVE ELECTRODE FOR NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY AND NON-AQUEOUS ELECTROLYTE SECONDARY BATTERY USING THE SAME 有权用于非水电解质二次电池的正极和不使用电解质的非水电解质二次电池公开(公告)号：US20160036044A1
公开(公告)日：2016-02-04
申请号：US14776270
申请日：2014-03-13
发明人： Kenji OHARA , Yoshiaki NITTA , Satoru ICHIKAWA , Gentaro KANO , Manabu NISHIJIMA , Osamu SHIMAMURA , Fumihiro KAMAMURA , Kousuke HAGIYAMA , Shigeo IBUKA , Manabu KASEDA , Masanori SUENAGA , Tamaki HIRAI , Masahiro TAKAYA , Kuniharu NOMOTO
IPC分类号： H01M4/36 , H01M4/525 , H01M10/0525 , H01M4/505
CPC分类号： H01M4/364 , H01M2/0217 , H01M2/16 , H01M4/131 , H01M4/505 , H01M4/525 , H01M10/0525 , H01M10/0585 , H01M2220/20 , H01M2220/30
摘要： [Object] Provided is a means for improving cycle characteristics by suppressing electrode deterioration resulting from non-uniformity of voltage across an electrode plane in a high-capacity and large-area non-aqueous electrolyte secondary battery that includes lithium nickel-based composite oxide as a positive electrode active substance.[Solving Means] Disclosed is a positive electrode for a non-aqueous electrolyte secondary battery used in a non-aqueous electrolyte secondary battery in which the ratio value of battery area (projected area of the battery including the battery outer casing body) to rated capacity is 5 cm2/Ah or more and the rated capacity is 3 Ah or more, the positive electrode comprising a positive electrode current collector and a positive electrode active substance layer that is formed on a surface of the positive electrode current collector and has a positive electrode active substance containing a lithium nickel-based composite oxide and a spinel type lithium manganese composite oxide, in which, when the average secondary particle diameter (D50) of the lithium nickel-based composite oxide is D50(A) [μm], the content ratio of the lithium nickel-based composite oxide in the positive electrode active substance layer is A [% by mass], the average secondary particle diameter (D50) of the spinel type lithium manganese composite oxide is D50(B) [μm], and the content ratio of the spinel type lithium manganese composite oxide in the positive electrode active substance layer is B [% by mass], the positive electrode satisfies the following Mathematical Formula 1 and Mathematical Formula 2: [Math. 1] 2.0
摘要翻译： 本发明提供一种用于通过抑制由包含锂镍基复合氧化物的大容量和大面积非水电解质二次电池中的电极平面上的电压的不均匀性引起的电极劣化的改善循环特性的手段 正极活性物质。 [解决方案]公开了一种非水电解质二次电池中使用的非水电解质二次电池用正极，其中电池面积（包括电池外壳体的电池的投影面积）与额定容量的比值 为5cm 2 / Ah以上，额定容量为3Ah以上，所述正极包含正极集电体和正极活性物质层，所述正极集电体和正极活性物质层形成在正极集电体的表面，具有正极 含有锂镍系复合氧化物和尖晶石型锂锰复合氧化物的活性物质，其中，当锂镍系复合氧化物的平均二次粒径（D50）为D50（A）[μm]时，含量 锂镍系复合氧化物在正极活性物质层中的比例为A [质量％]，尖晶石型l的平均二次粒径（D50） 锂锰复合氧化物为D50（B）[μm]，正极活性物质层中的尖晶石型锂锰复合氧化物的含有比例为B [质量％]，正极满足下列数学式1， 数学公式2：[数学式 1] 2.0
-
-
-
-
搜索结果
5 条记录 (耗时 0.018 秒)
