摘要:
An electrode (10) characterized by an output terminal (9) being led out from the surface of a part where an active substance layer (3) exists when viewed from the thickness direction of the electrode. Active substance contained in the active substance layer (3) preferably comprises a material having a low electron conductivity. The electrode (10) preferably comprises a pair of current collecting surface layers (4) having a surface touching electrolyte, and at least one active substance layer (3) containing particles (2) of an active substance having a high lithium compound forming power and interposed between the surface layers (4). In the active substance layer (3), a metal material having a low lithium compound forming power permeates between the particles of active substance and the opposite sides are conducting electrically. The entire electrode preferably has a current collecting function as a whole.
摘要:
An anode for a nonaqueous secondary battery comprising a current collector having formed thereon a first covering layer containing tin, a tin alloy, aluminum or an aluminum alloy and a second covering layer containing a metal having low capability of forming a lithium compound in that order. The anode may have an additional first covering layer formed on the second covering layer. A covering layer containing a copper etc. may be formed as an uppermost layer. Each layer can be formed by heat treating to get desired property. As heat treatment can be done in a short time, it has a great cost merit.
摘要:
A hydrogen storage material which is an AB5 type hydrogen storage alloy having a CaCu5 type crystal structure represented by general formula: MmNiaMnbAlcCod wherein Mm is a misch metal, 4.1
摘要:
An anode for a nonaqueous secondary battery comprising a current collector having formed thereon a first covering layer containing tin, a tin alloy, aluminum or an aluminum alloy and a second covering layer containing a metal having low capability of forming a lithium compound in that order. The anode may have an additional first covering layer formed on the second covering layer. A covering layer containing a copper etc. may be formed as an uppermost layer. Each layer can be formed by heat treating to get desired property. As heat treatment can be done in a short time, it has a great cost merit.
摘要:
A negative electrode 10 for a nonaqueous secondary battery has an active material layer 12 containing active material particles 12a. The particles 12a are coated at least partially with a metallic material 13 having low capability of lithium compound formation. The active material layer 12 has voids located between the metallic material-coated particles 12a with a void fraction of 15% to 45%. The metallic material 13 on the surface of the particles is preferably present throughout the thickness of the active material layer. The active material particles 12a are preferably of a silicon-based material. The active material layer 12 preferably contains 1% to 3% by weight of an electroconductive carbon material based on the weight of the active material particles 12a.
摘要:
A negative electrode (10) for use in a non-aqueous electrolyte secondary battery comprises an active material layer (12) containing a particle (12a) of an active material. At least a part of the surface of the particle (12a) is coated with a metal material (13) having a poor ability of forming a lithium compound. A void is formed between the particles (12a) that are coated with the metal material (13). The active material layer has a void ratio of 15 to 45%. Preferably, the metal material (13) is present over the entire area of such a part of the surface of the particle that extends in the thickness-wise direction of the active material layer. Also preferably, the particle (12a) of the active material is composed of a silicone material, and the active material layer (12) contains a conductive carbon material in an amount of 1 to 3% by weight relative to the weight amount of the particle (12a) of the active material.
摘要:
A hydrogen storage material which is an AB5 type hydrogen storage alloy having a CaCu5 type crystal structure represented by general formula: MmNiaMnbAlcCod wherein Mm denotes a misch metal, 4.0
摘要:
A hydrogen storage alloy is provided which has an extremely low Co content, and can maintain the drain (power) performance (especially pulse discharge characteristics), activity (degree of activity), and life performance at high levels. The hydrogen storage alloy is manufactured by weighing and mixing every material for the hydrogen storage alloy so as to provide an alloy composition represented by the general formula MmNiaMnbAlcCod or MmNiaMnbAlcCodFee, and controlling the manufacturing method and manufacturing conditions so that both the a-axis length and the c-axis length of the crystal lattice are in a predetermined range. Although it is sufficient if the a-axis length of the crystal lattice is 499 pm or more and the c-axis length is 405 pm or more, by further specifying the a-axis length and c-axis length depending on the values of ABx, a hydrogen storage alloy having high durability can be provided.
摘要翻译:提供了具有极低Co含量的储氢合金,能够维持排水(功率)性能(特别是脉冲放电特性),活性(活度),寿命性能高。 通过称量和混合每种用于储氢合金的材料来制造储氢合金,从而提供由通式M m N i A a B b B B A B 其中,C 1,C 2,C 2,C 3,C 3, 并且控制制造方法和制造条件使得晶格的a轴长度和c轴长度都在预定范围内。 虽然如果晶格的a轴长度为499μm以上且c轴长度为405μm以上,则通过根据ABx的值进一步确定a轴长度和c轴长度即可, 可以提供耐久性高的储氢合金。
摘要:
The invention provides an electrode as a cathode or an anode of a secondary battery. The electrode has a first and a second surface that are electrically conductive and adapted to be brought into contact with an electrolytic solution. The electrode has an active material layer containing active material particles between the first and second surfaces. The electrode has a large number of microvoids open on the first and second surfaces and leading to the active material layer.
摘要:
The invention provides an electrode as a positive electrode or a negative electrode of a secondary battery. The electrode has an active material layer containing active material particles. An electro-conductive material is filled between the active material particles over the entire thickness direction of the active material layer. The electro-conductive material is preferably a material having low capability of forming a lithium compound. Preferably, the electro-conductive material is filled in the active material layer by electroplating. The active particle material preferably comprises a material having high capability of forming a lithium compound, or a hydrogen storage alloy. The invention also provides a secondary battery which has the above electrode as a positive electrode or a negative electrode.