Abstract: A mechanism that enables developer replenishment by a simpler structure and a mechanism that enables more user-friendly developer replenishment are provided. An attachment port to which a developer supply bottle containing a developer stored therein is detachably attachable is disposed in an interior of an image forming apparatus. The developer supply bottle can be attached when the cover is in an open state. According to this image forming apparatus, when the developer supply bottle is attached to the attachment port, the developer inside the developer supply bottle moves into a developer housing chamber by its own weight.

Abstract: A secondary battery includes a negative electrode containing a lithium silicate phase and silicon particles dispersed in the lithium silicate phase and an electrolytic solution containing a fluorine-containing linear carboxylic acid ester represented by R1—(CO)O—CH2—R2 (wherein R1 is an alkyl group and R2 is an alkyl group in which at least one hydrogen atom is substituted with fluorine).

Abstract: A mounting structure of a shift lever on a body frame which swingably supports a swing arm includes the shift lever configured to receive a shift operation from a driver, a rear cushion configured to extend and contract according to swinging of the swing arm, a cushion lever connecting the rear cushion and the swing arm, and a cushion rod connecting the cushion lever and the body frame. A mounting portion of the shift lever is disposed on an outer side of the body frame in a vehicle width direction. A mounting portion of the cushion rod is disposed on an inner side of the body frame in the vehicle width direction. An opening portion is formed on the body frame. The mounting portion of the shift lever and the mounting portion of the cushion rod overlap the opening portion in a side view.

Abstract: This lithium ion secondary battery comprises a negative electrode, a positive electrode, a non-aqueous electrolyte including a lithium salt, and an aqueous electrolyte including a lithium salt, wherein: among the negative electrode and the positive electrode, the aqueous electrolyte contacts only the positive electrode; among the negative electrode and the positive electrode, the non-aqueous electrolyte contacts at least the negative electrode; the positive electrode contains a positive electrode active material; the positive electrode active material contains a lithium transition metal composite oxide and a surface modification layer formed on the surface of primary particles of the lithium transition metal composite oxide; and the surface modification layer contains an alkali earth metal element.

Abstract: This lithium ion secondary battery includes: a negative electrode; a positive electrode; a non-aqueous electrolyte which is water repellant and contains a lithium salt; and an aqueous solid electrolyte which contains a lithium salt. The aqueous solid electrolyte contacts only the positive electrode, from between the negative electrode and the positive electrode. The non-aqueous electrolyte contacts at least the negative electrode, from between the negative electrode and the positive electrode.

Abstract: A rechargeable battery including a positive electrode, a negative electrode, and an electrolyte solution is provided. The electrolyte solution contains water and one or more lithium salts, and the lithium salts include lithium fluorophosphate.

Abstract: A nonaqueous electrolyte includes a lithium salt and a nonaqueous solvent in which the lithium salt is dissolved. The nonaqueous solvent includes a fluorinated chain carboxylate ester and a dicarbonyl compound having two carbonyl groups in the molecule. The dicarbonyl compound is at least one selected from the group consisting of esters and acid anhydrides and has not more than three atoms between the two carbonyl groups.

Abstract: This secondary battery comprises a positive electrode, a negative electrode, and an electrolyte. The electrolyte contains a solvent containing water, and a lithium salt. The negative electrode has a negative electrode active material that contains a carbon material. In the carbon material, the peak intensity ratio (D/G value) of a D band and a G band in the Raman spectrum obtained using Raman spectroscopy is 0.9 to 1.5. A coating is formed on the surface of the carbon material. In the coating, in the XPS spectrum measured using X-ray photoelectron spectroscopy, when the peak intensity of a 1s electron orbit of an F atom for which the binding energy appears near 685 eV is P1, and the peak intensity of the 1s electron orbit of an O atom for which the binding energy appears near 532 eV is P2, the ratio of the peak intensity P1 to the peak intensity P2 (P1/P2 value) is 0.6 to 3.0.

Abstract: This secondary battery comprises a positive electrode, a negative electrode, and an electrolyte solution. The electrolyte solution includes a solvent containing water as a main component, and a lithium salt. The negative electrode has a negative electrode active material that includes a carbon material. The Raman spectrum of the carbon material, which is obtained by Raman spectroscopy, indicates that the peak intensity ratio between the D-band and the G-band (D/G) is 0.3 or greater. This secondary battery can suppress the reductive decomposition of the water-based electrolyte solution.

Abstract: A secondary battery according to the present invention comprises a positive electrode, a negative electrode and an electrolyte solution; the electrolyte solution contains a lithium salt and a solvent containing water; the negative electrode comprises a negative electrode active material that contains a carbon material; with respect to the carbon material, the peak intensity ratio (D/G value) of the D band to the G band in a Raman spectrum as obtained by Raman spectroscopy is from 0.05 to 0.7; a coating film is formed on the surface of the carbon material; and with respect to the coating film, if P1 is the peak intensity of the 1s electron orbital of an F atom at around the binding energy of 685 eV and P2 is the peak intensity of the 1s electron orbital of an O atom at around the binding energy of 532 eV in an XPS spectrum as determined by X-ray photoelectron spectroscopy, the ratio of the peak intensity P1 to the peak intensity P2, namely the value of P1/P2 is from 1.0 to 3.0.

Abstract: A nonaqueous electrolyte solution according to one embodiment of the present disclosure contains a lithium salt and a nonaqueous solvent; the nonaqueous solvent contains fluoroethylene carbonate and a chain carboxylic acid ester having a dielectric constant of 6.0 or more; the lithium salt contains LiPO2F2 and LiSO3F; and the respective concentrations of LiPO2F2 and LiSO3F in the non-aqueous solvent are 0.15 mol/L or more.

Abstract: A secondary battery which comprises a positive electrode, a negative electrode, and an electrolytic solution, wherein the electrolytic solution comprises water, a lithium salt, and an additive, the additive including at least one of alkaline-earth metal salts, dicarboxylic acids, carboxylic anhydrides, and organic carbonates, and the negative electrode comprises a negative active material, the negative active material having a silane coupling agent adherent to the surface thereof.

Abstract: A non-aqueous electrolyte secondary cell provided with: a positive electrode that has a positive electrode active material; a negative electrode; and a non-aqueous electrolyte. The positive electrode active material contains a lithium composite oxide containing Ni, and the non-aqueous electrolyte contains a non-aqueous solvent containing a fluorinated chain carboxylic acid ester and an organochlorine compound. The organochlorine compound is represented by general formula CF3CH2CO—CClR1R2 (where in the formula, R1 and R2 are respectively independent, and are selected from a hydrogen, a halogen, a C1-2 alkyl group, or a C1-2 halogenated alkyl group).

Abstract: An object is to acquire a head-related transfer function reproducing features of a head-related transfer function of a listener without actually measuring the head-related transfer function of the listener.

Abstract: A secondary battery includes a positive electrode containing a positive electrode active material; a negative electrode; and an electrolyte. The electrolyte contains a solvent, a lithium salt dissolved in the solvent, and a film forming compound. The film forming compound includes fluorine and an unsaturated bond between carbons. A surface of the positive electrode active material is at least partially covered with a film containing lithium, oxygen, carbon, and fluorine.

Abstract: A secondary battery includes a negative electrode containing a lithium silicate phase and silicon particles dispersed in the lithium silicate phase and an electrolytic solution containing a fluorine-containing linear carboxylic acid ester represented by R1—(CO)O—CH2—R2 (wherein R1 is an alkyl group and R2 is an alkyl group in which at least one hydrogen atom is substituted with fluorine).

Abstract: A rechargeable battery including a positive electrode, a negative electrode, and an electrolyte solution is provided. The electrolyte solution contains water and one or more lithium salts, and the lithium salts include lithium fluorophosphate.

Abstract: A nonaqueous electrolyte includes a lithium salt, a trifluoropropionate ester of the formula (1), and a fluorinated carboxylate ester of the formula (2). The amount of (1) is not less than 10 mass % of the nonaqueous electrolyte. In the formulae, R1 is a C1-3 alkyl group, one or two of X1 to X4 are fluorine atoms, R2 is a hydrogen atom, a C1-3 alkyl group or a fluorinated C1-3 alkyl group, and R3 is a C1-3 alkyl group or a fluorinated C1-3 alkyl group.

Abstract: A nonaqueous electrolyte solution according to one embodiment of the present disclosure contains a lithium salt and a nonaqueous solvent; the nonaqueous solvent contains fluoroethylene carbonate and a chain carboxylic acid ester having a dielectric constant of 6.0 or more; the lithium salt contains LiPO2F2 and LiSO3F; and the respective concentrations of LiPO2F2 and LiSO3F in the non-aqueous solvent are 0.15 mol/L or more.

Abstract: A nonaqueous electrolyte includes a lithium salt and a nonaqueous solvent in which the lithium salt is dissolved. The nonaqueous solvent includes a fluorinated chain carboxylate ester and a dicarbonyl compound having two carbonyl groups in the molecule. The dicarbonyl compound is at least one selected from the group consisting of esters and acid anhydrides and has not more than three atoms between the two carbonyl groups.