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    • 33. 发明授权
    • Inorganic solid electrolyte and lithium cell component
    • 无机固体电解质和锂电池组件
    • US07517616B2
    • 2009-04-14
    • US11370047
    • 2006-03-08
    • Hirokazu KugaiNobuhiro Ota
    • Hirokazu KugaiNobuhiro Ota
    • H01M6/18
    • H01M10/0562H01B1/10H01M2/1673H01M6/18H01M6/188
    • A sulfide-based inorganic solid electrolyte that suppresses the reaction between silicon sulfide and metallic lithium even when the electrolyte is in contact with metallic lithium, a method of forming the electrolyte, and a lithium battery's member and lithium secondary battery both incorporating the electrolyte. The electrolyte comprises Li, P, and S without containing Si. It is desirable that the oxygen content vary gradually from the electrolyte to the lithium-containing material at the boundary zone between the two members when analyzed by using an XPS having an analyzing chamber capable of maintaining a super-high vacuum less than 1.33×10−9 hPa and that the oxygen-containing layer on the surface of the lithium-containing material be removed nearly completely. The electrolyte can be formed such that at least part of the forming step is performed concurrently with the step for etching the surface of the substrate by irradiating the surface with inert-gas ions.
    • 即使电解液与金属锂接触,也可以抑制硫化物和金属锂之间的反应,形成电解质的方法,以及兼具电解质的锂电池部件和锂二次电池的硫化物系无机固体电解质。 电解质包含不含Si的Li,P和S。 期望的是,当通过使用具有能够保持超高真空度小于1.33×10-9的分析室的XPS进行分析时,氧含量在两个构件之间的边界区域处从电解质向含锂材料逐渐变化 并且几乎完全除去含锂材料表面上的含氧层。 电解质可以形成为使得通过用惰性气体离子照射表面来与形成步骤的至少一部分同时进行用于蚀刻基板的表面的步骤。
    • 34. 发明申请
    • BATTERY STRUCTURE AND LITHIUM SECONDARY BATTERY USING THE SAME
    • 电池结构和锂二次电池使用相同
    • US20090029265A1
    • 2009-01-29
    • US12282149
    • 2007-12-13
    • Nobuhiro Ota
    • Nobuhiro Ota
    • H01M6/18
    • H01M10/0562H01M10/052H01M2300/0068H01M2300/0071
    • A battery structure includes a positive electrode layer, a solid electrolyte layer, and a negative electrode layer disposed in that order, wherein the solid electrolyte layer has a chemical composition, excluding incidental impurities, represented by the formula aLi·bX·cS·dY, where X is at least one element of phosphorus (P) and boron (B), Y is at least one element of oxygen (O) and nitrogen (N), the sum of a, b, c, and d is 1, a is 0.20 to 0.52, b is 0.10 to 0.20, c is 0.30 to 0.55, and d is 0 to 0.30. The solid electrolyte layer includes a portion A in contact with the negative electrode layer and a portion B in contact with the positive electrode layer, and d in the portion A is larger than d in the portion B. A lithium secondary battery includes the battery structure.
    • 电池结构包括按照该顺序设置的正极层,固体电解质层和负极层,其中固体电解质层具有化学组成,不包括由式aLi.bX.cS.dY表示的杂质, 其中X是磷(P)和硼(B)的至少一种元素,Y是氧(O)和氮(N)的至少一种元素,a,b,c和d的和为1,a 为0.20〜0.52,b为0.10〜0.20,c为0.30〜0.55,d为0〜0.30。 固体电解质层包括与负极层接触的部分A和与正极层接触的部分B,并且部分A中的d在部分B中大于d。锂二次电池包括电池结构 。
    • 36. 发明授权
    • Method of producing negative electrode for lithium secondary cell
    • 锂二次电池负极的制造方法
    • US06656233B2
    • 2003-12-02
    • US09884633
    • 2001-06-18
    • Hirokazu KugaiNobuhiro OtaShosaku Yamanaka
    • Hirokazu KugaiNobuhiro OtaShosaku Yamanaka
    • H01M600
    • H01M10/0562H01M4/0421H01M4/134H01M10/052H01M2004/021H01M2004/027H01M2300/0068Y10T29/49108Y10T29/49115
    • A method of independently producing a negative electrode for a lithium secondary cell having thin films of lithium and a sulfide-based inorganic solid electrolyte begins with a negative electrode base material and an inorganic solid electrolyte source material being removed from closed containers in a chamber space, which is substantially inactive to lithium and insulated from air. The materials are transferred into an adjacent thin film deposition system without being exposed to the air. In the system, the source material is used to form a thin film of an inorganic solid electrolyte on the base material, to make the electrode. The electrode is transferred, without being exposed to the air, into a chamber space, which is substantially inactive to lithium, where the electrode is placed into a closed container. Thus, a negative electrode can be produced without being degraded by air.
    • 独立地制造锂二次电池用负极的方法,其具有锂和硫化物系无机固体电解质的薄膜,开始于负极基材,无机固体电解质源材料从室内的密闭容器中除去, 其对锂基本上无活性并且与空气绝缘。 将材料转移到相邻的薄膜沉积系统中而不暴露于空气中。 在该系统中,源材料用于在基材上形成无机固体电解质的薄膜,以制造电极。 将电极转移而不暴露于空气中,将电极置于密闭容器中的锂空间中基本上不起作用的室空间。 因此,可以在不会被空气劣化的情况下制造负极。
    • 38. 发明授权
    • Method of manufacturing carbon substrate
    • 制造碳基板的方法
    • US5580500A
    • 1996-12-03
    • US297811
    • 1994-08-30
    • Kazuo MuramatsuManabu HisadaHideki YamamuroHideo AshidaSatoru TakadaMasami TakaoYoshihiro HaraNobuhiro Ota
    • Kazuo MuramatsuManabu HisadaHideki YamamuroHideo AshidaSatoru TakadaMasami TakaoYoshihiro HaraNobuhiro Ota
    • C04B35/524C01B31/00
    • C04B35/524
    • A carbon substrate manufacturing method includes a hot molding step, a burn-carbonizing step, a hot isostatical pressure treatment step, and a mirror polishing step. In the hot molding step, molding is performed while heating thermosetting resin powders to be a hard carbon substrate after burn-carbonizing, where the thermosetting resin powders are of a particle size 150 .mu.m or more, HPF 80-150 mm, a moisture content 1.0-3.0 weight %, Fe, Ni, Si and Ca respectively 5 ppm or less. In the burn-carbonizing process, a disk shaped resin molded body is filled into a graphite cylinder and burn-carbonized by heating from the external while the condition therefor is maintained in that the disk shaped resin molded body is stacked holding therein a graphite spacer at every one sheet basis or at every plurality of sheet basis and is loaded on its top with a tungsten carbide weight, where the graphite spacer has a heat conductivity 100 kcal/m.hr..degree. C. or less, a bulk density 1.70-1.85, and a flatness degree 10 .mu.m or less.
    • 碳基板制造方法包括热成型步骤,燃烧碳化步骤,热等压压力处理步骤和镜面抛光步骤。 在热成型工序中,在将热固化性树脂粉末在烧成碳化后作为硬质碳基板加热的同时进行成型,其中热固性树脂粉末的粒径为150μm以上,HPF为80-150mm,水分含量 1.0-3.0重量%,Fe,Ni,Si和Ca分别为5ppm以下。 在烧成碳化工序中,将圆盘状树脂成形体填充到石墨圆筒中,通过加热从外部进行燃烧碳化,同时保持其状态,将盘状树脂成型体层叠在一起,将石墨间隔件 每一片或多个片材基础,并以碳化钨重量装载在其顶部,其中石墨间隔物具有100kcal / m·hr的热导率。 ℃以下,体积密度1.70-1.85,平坦度10μm以下。