Abstract: A method for processing lithium ion battery scrap includes a leaching step of leaching lithium ion battery scrap and subjecting the resulting leached solution to solid-liquid separation to obtain a first separated solution; an iron removal step of adding an oxidizing agent to the first separated solution and adjusting a pH of the first separated solution in a range of from 3.0 to 4.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution; and an aluminum removal step of neutralizing the second separated solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the second separated solution to obtain a third separated solution.

Abstract: A method for processing lithium ion battery scrap according to this invention includes a leaching step of leaching lithium ion battery scrap to obtain a leached solution; an aluminum removal step of neutralizing the leached solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the leached solution to obtain a first separated solution; and an iron removal step of adding an oxidizing agent to the first separated solution and adjusting the pH in a range of from 3.0 to 5.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution.

Abstract: A method for processing lithium ion battery scrap includes a leaching step of leaching lithium ion battery scrap and subjecting the resulting leached solution to solid-liquid separation to obtain a first separated solution; an iron removal step of adding an oxidizing agent to the first separated solution and adjusting a pH of the first separated solution in a range of from 3.0 to 4.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution; and an aluminum removal step of neutralizing the second separated solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the second separated solution to obtain a third separated solution.

Abstract: A method for processing lithium ion battery scrap according to this invention includes a leaching step of leaching lithium ion battery scrap to obtain a leached solution; an aluminum removal step of neutralizing the leached solution to a pH range of from 4.0 to 6.0, then performing solid-liquid separation and removing aluminum in the leached solution to obtain a first separated solution; and an iron removal step of adding an oxidizing agent to the first separated solution and adjusting the pH in a range of from 3.0 to 5.0, then performing solid-liquid separation and removing iron in the first separated solution to obtain a second separated solution.

Abstract: The impact absorbing structure of the present invention is an impact absorbing structure for absorbing an impact in a case where the impact absorbing structure is subjected to the impact in a predetermined direction. The impact absorbing structure comprises a plurality of impact absorbing members, each of which is a tubular-shaped body whose longitudinal central axis is arranged along the impact direction and capable of absorbing the impact by being compressively collapsed when receiving the impact from the impact direction. At least one of the plurality of impact absorbing members being placed in such a way that a front end of the impact absorbing members is placed at a different position of ends of the other impact absorbing members in the impact direction, and the front end is an end closer to the direction which is forward in the impact direction.

Abstract: It is desired to make a shock absorbing structure small in size. The shock absorbing structure includes a beam-like structural member having a concave section; and a shock absorbing member, one end of which is arranged in the concave section to abut to the structural member and the other end of which is arranged outside the structural member. Even in a case of a dead stroke when the shock absorbing member is bottomed out, the concave section overlaps with the structural member supporting the structure, so that there is no wasteful space.

Abstract: A copper foil for a printed circuit having a roughened layer on a surface of a copper foil by way of copper-cobalt-nickel alloy plating, a cobalt-nickel alloy plated layer formed on the roughened layer, and a zinc-nickel alloy plated layer formed on the cobalt-nickel alloy plated layer, wherein the total amount of the zinc-nickel alloy plated layer is 150 to 500 pg/dm2, the lower limit of the nickel ratio in the alloy layer is 0.16, the upper limit thereof is 0.40, and the nickel content is 50 pg/dm2 or more.

Abstract: Provided is a copper foil for a printed circuit with an electrodeposited ternary-alloy layer composed of copper, cobalt and nickel formed on a surface of the copper foil, wherein the electrodeposited layer comprises dendritic particles grown on the copper foil surface, and the entire surface of the copper foil is covered with particles having an area as seen from above the copper foil surface of 0.1 to 0.5 ?m2 at a density of 1000 particles/10000 ?m2 or less, particles exceeding 0.5 ?m2 at a density of 100 particles/10000 ?m2 or less, and particles less than 0.1 ?m2 as the remainder. Roughening particles formed dendritically in a roughening treatment based on copper-cobalt-nickel alloy plating are inhibited from shedding from the copper foil surface, and the phenomenon known as powder falling and uneven treatment are thereby inhibited.

Abstract: A method for extracting nickel and lithium includes solvent extraction step of using three or more extraction stages to subject a solution containing lithium and nickel to solvent extraction with 2-Ethylhexyl phosphonic acid mono-2-ethylhexyl ester at a pH of 8.0 to 8.5, whereby the nickel and the lithium are co-extracted into a resultant organic phase.

Abstract: A preparation method of lithium carbonate, in recovering valuable resources of a lithium-ion battery, reducing impurities from lithium carbonate, having a pretreatment process, comprising: a first step cleaning an organic phase containing nickel and lithium prepared by a solvent extraction by use of a sulfuric acid solution containing nickel and enriching lithium in the cleaning solution; a second step extracting a residual nickel only by an organic solvent from a post-cleaning solution in which the lithium is enriched; and a third step controlling pH of the post-extraction solution containing the lithium by ammonia water or lithium hydroxide.

Abstract: The impact absorbing structure of the present invention is an impact absorbing structure for absorbing an impact in a case where the impact absorbing structure is subjected to the impact in a predetermined direction. The impact absorbing structure comprises a plurality of impact absorbing members, each of which is a tubular-shaped body whose longitudinal central axis is arranged along the impact direction and capable of absorbing the impact by being compressively collapsed when receiving the impact from the impact direction. At least one of the plurality of impact absorbing members being placed in such a way that a front end of the impact absorbing members is placed at a different position of ends of the other impact absorbing members in the impact direction, and the front end is an end closer to the direction which is forward in the impact direction.

Abstract: It is desired to make a shock absorbing structure small in size. The shock absorbing structure includes a beam-like structural member having a concave section; and a shock absorbing member, one end of which is arranged in the concave section to abut to the structural member and the other end of which is arranged outside the structural member. Even in a case of a dead stroke when the shock absorbing member is bottomed out, the concave section overlaps with the structural member supporting the structure, so that there is no wasteful space.

Abstract: Provided is a copper foil for a printed circuit with an electrodeposited ternary-alloy layer composed of copper, cobalt and nickel formed on a surface of the copper foil, wherein the electrodeposited layer comprises dendritic particles grown on the copper foil surface, and the entire surface of the copper foil is covered with particles having an area as seen from above the copper foil surface of 0.1 to 0.5 ?m2 at a density of 1000 particles/10000 ?m2 or less, particles exceeding 0.5 ?m2 at a density of 100 particles/10000 ?m2 or less, and particles less than 0.1 ?m2 as the remainder. Roughening particles formed dendritically in a roughening treatment based on copper-cobalt-nickel alloy plating are inhibited from shedding from the copper foil surface, and the phenomenon known as powder falling and uneven treatment are thereby inhibited.

Abstract: A method for extracting nickel and lithium includes solvent extraction step of using three or more extraction stages to subject a solution containing lithium and nickel to solvent extraction with 2-Ethylhexyl phosphonic acid mono-2-ethylhexyl ester at a pH of 8.0 to 8.5, whereby the nickel and the lithium are co-extracted into a resultant organic phase.

Abstract: A preparation method of lithium carbonate, in recovering valuable resources of a lithium-ion battery, reducing impurities from lithium carbonate, having a pretreatment process, comprising: a first step cleaning an organic phase containing nickel and lithium prepared by a solvent extraction by use of a sulfuric acid solution containing nickel and enriching lithium in the cleaning solution; a second step extracting a residual nickel only by an organic solvent from a post-cleaning solution in which the lithium is enriched; and a third step controlling pH of the post-extraction solution containing the lithium by ammonia water or lithium hydroxide.

Abstract: An impact-absorbing composite structure is formed with a resin and a fiber laminated body, and absorbs, when experiencing an impact, the impact by self destruction. An interlayer-strength improvement technique is applied on the impact-absorbing composite structure in an oblique manner or in a gradual manner.

Abstract: Provided is a copper foil for printed circuit comprising a roughened layer on a surface of a copper foil by way of copper-cobalt-nickel alloy plating, a cobalt-nickel alloy plated layer formed on the roughened layer, and a zinc-nickel alloy plated layer formed on the cobalt-nickel alloy plated layer, wherein the total amount of the zinc-nickel alloy plated layer is 150 to 500 ?g/dm2, the lower limit of the nickel ratio in the alloy layer is 0.16, the upper limit thereof is 0.40, and the nickel content is 50 ?g/dm2 or more. With the development of electronic equipment, the miniaturization and high integration of semiconductor devices have advanced further. This tendency has led to a demand for the adoption of a higher temperature in treatment in a production process of printed circuits and has led to heat generation during the use of electronic equipment after the productization.

Abstract: An impact-absorbing composite structure is formed with a resin and a fiber laminated body, and absorbs, when experiencing an impact, the impact by self destruction. An interlayer-strength improvement technique is applied on the impact-absorbing composite structure in an oblique manner or in a gradual manner.

Abstract: A Novel N-substituted peptidyl compound represented by the general formula (1): ##STR1## where R.sub.1 is a straight-chained or branched acyl group having 2-10 carbon atoms, a branched, cyclic or bridged cyclic alkyloxycarbonyl group having 4-15 carbon atoms; a benzyloxycarbonyl group which is unsubstituted or substituted with a halogen atom, nitro group or methoxy group; a 2,2,2-trichloroethyloxycarbonyl group, a 2-(trimethylsilyl)ethyloxycarbonyl group, a p-toluensulfonyl group, an o-nitrophenylsulfenyl group, a diphenylphosphonothioyl group, a triphenylmethyl group, a 2-benzoyl-1-methylvinyl group;R.sub.2 is a hydrogen atom or when taken together with R.sub.1, may form a phthaloyl group;R.sub.3 is an isobutyl group, a n-butyl group or an isopropyl group;R.sub.4 is a butyl group, andR.sub.5 is a hydrogen atom;provided that R.sub.1 can be an unsubstituted benzyloxycarbonyl group only when R.sub.3 is a n-butyl group.

Abstract: A dipeptide derivative having the formula (I):R.sup.1 NH--CH(R.sup.2)--CO--NH--CH(R.sup.3)--COCH.sub.2 F (I)wherein, R.sup.1 is an aliphatic acyl group having 2 to 8 carbon atoms or a benzyloxycarbonyl group; andR.sup.2 and R.sup.3 are independently a hydrogen atom or a straight or branched alkyl group having 1 to 4 carbon atoms and a prophylactic or therapeutic agent containing the same as an active ingredient.