US2013260223(JP)
"[0025] In addition, an electronically conductive polymer（電子伝導性の導電性高分子）or an ionically conductive（イオン伝導性の）polymer may be used as the binder. Examples of the electronically conductive polymer include polyacetylene and the like. In this case, the binder also exhibits a function of a conductive material, and thus the conductive material may not be added. Examples of the ionically conductive polymer include polymers, which are obtained by compounding a polymer compound such as polyethylene oxide and polypropylene oxide with a lithium salt or an alkali metal salt that contains lithium as a main component, and the like."
WO2011084649
(Ab)
"Redox flow devices are described in which at least one of the positive electrode or negative electrode-active materials is a semi-solid（半固体）or is a condensed ion-storing electroactive material（イオン貯蔵電気活性物質）, and in which at least one of the electrode-active materials is transported to and from an assembly at which the electrochemical reaction occurs, producing electrical energy. The electronic conductivity（電子伝導性）of the semi-solid is increased by the addition of conductive particles to suspensions and/or via the surface modification of the solid in semi-solids (e.g., by coating the solid with a more electron conductive（電子伝導性の）coating material to increase the power of the device). High energy density and high power redox flow devices are disclosed. The redox flow devices described herein can also include one or more inventive design features. In addition, inventive chemistries for use in redox flow devices are also described."
US2013288121(JP)
"[0193] FIG. 18 is a diagram showing a relationship among a content by percentage y of Ni among transition metals（遷移金属中のNiの含有率；＊複数の遷移金属中の１つであるNiの含有率）in the lithium transition metal oxide (Li1+x(NiyCozMn1-y-zMγ)O2), specific capacity, and a rate of decrease in weight (volume). In FIG. 18, block dots represent specific capacity and white dots represent rate of decrease in weight (volume). As shown, when the content by percentage y of Ni among the transition metal element increases, the specific capacity increases and the weight (volume) can be reduced."
US2017294676(JP)
"[0059] The negative-electrode carbon according to the present invention is a layered carbon material（層状炭素材料）containing potassium between layers during charging. When the negative-electrode carbon is graphite, the theory indicates that potassium ions can be intercalated into（挿入）the negative-electrode carbon up to a composition represented by KC8. According to the present invention, a reversible capacity very closed to the theoretical capacity can be achieved, and for example, a peak indicative of a composition represented by KC8 can also be observed in an X-ray diffraction pattern."
"[0068] In the present invention, there is no particular limitation for the positive electrode for potassium ion secondary batteries (hereinafter may be referred to as the “positive electrode” for short) as long as it includes a positive-electrode active material for potassium ion secondary batteries (hereinafter may be referred to as the “positive-electrode active material” for short) capable of occluding and releasing（吸蔵および放出）potassium.
[0069] There is no particular limitation for the positive-electrode current collector, but, for example, those exemplified in the context of the negative-electrode current collector can be used. Those made of the same materials as the negative-electrode current collectors and/or those having similar foil- and mesh-like forms and the like as the negative-electrode current collectors may be used.
[0070] As the positive-electrode active material, preferred are compounds containing potassium as a constituent element in the composition thereof (hereinafter may be referred to as the “potassium-containing compound”) in view of, for example, the capacity and output characteristics. Examples of the potassium-containing compound include, for example, layered oxide-based（層状酸化物系）materials such as potassium-iron composite oxide (NaFeO2), potassium-cobalt composite oxide (KCoO2), potassium-chromium composite oxide (KCrO2)"
US2017133660(JP)
"[0055] For the positive electrode active material, a material into and from which carrier ions such as lithium ions can be inserted and extracted（挿入脱離）can be used. For example, a lithium-containing material with an olivine-type crystal structure, a layered rock salt-type crystal structure, and a spinel-type crystal structure can be used."
"[0064] In the case where carrier ions are alkali metal ions other than lithium ions, alkaline-earth metal ions, beryllium ions, or magnesium ions, the positive electrode active material may contain, instead of lithium in the compound and the oxide, an alkali metal (e.g., sodium or potassium), an alkaline-earth metal (e.g., calcium, strontium, or barium), beryllium, or magnesium. For example, the positive electrode active material may be a layered oxide（層状酸化物）containing sodium such as NaFeO2 or Na2/3[Fe1/2Mn1/2]O2.
[0065] Further alternatively, any of the aforementioned materials may be combined to be used as the positive electrode active material. For example, a solid solution（固溶体）obtained by combining two or more of the above materials can be used as the positive electrode active material. For example, a solid solution of LiCo1/3Mn1/3Ni1/3O2 and Li2MnO3 can be used as the positive electrode active material."
US2015333362(JP)
"[0027] For example, a transition metal oxide and a transition metal composite oxide can be used. Specifically, at least one of lithium manganese composite oxide Li2Mnx3 Ma1−x3O3 (0.8≦x3≦1, Ma=Co, Ni), lithium cobaltate (LiCoO2), lithium nickelate (LiNiO2), lithium manganese spinel (LiMn2O4), composite metal oxides represented by general formula: LiNix4Coy4Mnz4O2 (x4+y4+z4=1, 0≦x4≦1, 0≦y4≦1, 0≦z4≦1), a lithium vanadium compound (LiV2O5), olivine LiMbPO4 (wherein Mb represents one or more elements selected from Co, Ni, Mn, Fe, Mg, Nb, Ti, Al, and Zr), vanadium lithium phosphate (Li3V2(PO4)3 or LiVOPO4), Li-excess solid solution（Li過剰系固溶体）positive electrode Li2MnO3—LiMcO2 (Mc=Mn, Co, Ni), lithium titanate (Li4Ti5O12)"
US2015333365(JP)
Li-excess solid solution（Li過剰系固溶体）positive electrode Li2MnO3—LiMcO2 (Mc=Mn, Co, Ni), lithium titanate (Li4Ti5O12), and composite metal oxides represented by LiaNix5Coy5Alz5O2 (0.9
[0037] Among the above transition metal oxides and transition metal composite oxides, in particular, vanadium lithium phosphate can be used. As the vanadium lithium phosphate, at least one of LiVOPO4 and Li3V2(PO4)3 can be used. LiVOPO4 and Li3V2(PO4)3 may be lithium-deficient（リチウムの欠損がある）."
US2018114975 (JP)
"[0047] As the layered compound（層状化合物）, for example, a lithium cobaltate composite oxide (LiCoO2; hereinafter sometimes referred to as LCO), a lithium manganate composite oxide (LiMnO2), a lithium nickelate composite oxide (LiNiO2), a lithium niobate composite oxide (LiNbO2), a lithium ferrite composite oxide (LiFeO2), a lithium magnesium composite oxide (Li2MgO2), a lithium calcium composite oxide (Li2CaO2), a lithium cuprate composite oxide (LiCuO2), a lithium zincate composite oxide (LiZnO2), a lithium molybdate composite oxide (LiMoO2), a lithium tantalate composite oxide (LiTaO2), a lithium tungstate composite oxide (LiWO2), a lithium-nickel-cobalt-aluminum composite oxide (LiNi0.8Co0.15Al0.05O2; hereinafter sometimes referred to as LNCAO), a lithium-nickel-cobalt-manganese composite oxide (LiNi1/3Co1/3Mn1/3O2; hereinafter sometimes referred to as LNCMO), a Li excess（Li過剰系）nickel-cobalt-manganese composite oxide (LixNiACoBMnCO2 solid solution（固溶体）; hereinafter sometimes referred to as Li rich NCM) and the like can be preferably exemplified."
