摘要:
To provide a carbon material capable of suppressing excessive reactivity with an electrolytic solution and excellent in a rapid charge/discharge characteristics.A carbon material for lithium ion secondary batteries, which satisfies: (i) a tap density≧0.75 g/cm3; (ii) a Raman R value≧0.23 and a half width of D band ΔνD
摘要:
To provide a carbon material capable of suppressing excessive reactivity with an electrolytic solution and excellent in a rapid charge/discharge characteristics.A carbon material for lithium ion secondary batteries, which satisfies: (i) a tap density≧0.75 g/cm3; (ii) a Raman R value≧0.23 and a half width of D band ΔνD
摘要:
A subject is to provide a nonaqueous secondary battery which is sufficiently low in charge/discharge irreversible capacity in initial cycling even when an active-material layer comprising a negative-electrode material and formed on a current collector is densified for capacity increase where the subject is accomplished with composite graphite particles for a nonaqueous secondary battery which comprise a composite of spherical graphite particles and a binder graphite and which satisfy at least one of (a) to (g) conditions as presently claimed and a negative electrode produced using the carbonaceous negative-electrode material according to the invention is excellent in electrolytic-solution infiltration and provides a nonaqueous secondary battery having excellent charge/discharge high-load characteristics.
摘要:
A subject is to provide a nonaqueous secondary battery which is sufficiently low in charge/discharge irreversible capacity in initial cycling even when an active-material layer comprising a negative-electrode material and formed on a current collector is densified for capacity increase where the subject is accomplished with composite graphite particles for a nonaqueous secondary battery which comprise a composite of spherical graphite particles and a binder graphite and which satisfy at least one of (a) to (g) conditions as presently claimed and a negative electrode produced using the carbonaceous negative-electrode material according to the invention is excellent in electrolytic-solution infiltration and provides a nonaqueous secondary battery having excellent charge/discharge high-load characteristics.
摘要:
To provide a negative electrode material capable of giving a lithium ion secondary battery that is sufficiently small in the charge/discharge irreversible capacity observed at the initial cycle stage, has excellent high-temperature storage characteristics, and reduced in the gas generation at the initial cycle stage as well as during high-temperature storage.A carbon material for lithium ion secondary battery, wherein the surface functional group amount O/C value represented by the following formula 1 is from 1 to 4% and the sum (Cl/C+S165/C) of the surface functional group amount Cl/C value represented by the following formula 2 and the surface functional group amount S165/C value represented by the following formula 3 is from 0.05 to 0.5%: O/C value (%)=O atom concentration determined based on the peak area of the spectrum of O1s in X-ray photoelectron spectroscopy (XPS) analysis/C atom concentration determined based on the peak area of the spectrum of C1s in XPS analysis×100 Formula 1: Cl/C value (%)=Cl atom concentration determined based on the peak area of the spectrum of Cl2p in XPS analysis/C atom concentration determined based on the peak area of the spectrum of C1s in XPS analysis×100 Formula 2: S165/C value (%)=S165 atom concentration based on the peak area of the peak near 165 eV in the spectrum corresponding to S2p in XPS analysis/C atom concentration determined based on the peak area of the spectrum of C1s in XPS analysis×100 Formula 3.
摘要:
An object is to provide a high capacity non-aqueous electrolyte secondary battery in which decomposition of propylene carbonate is suppressed. The non-aqueous electrolyte secondary battery includes: a negative electrode including graphite particles as a negative electrode active material; a positive electrode; a separator; and a non-aqueous electrolyte including propylene carbonate as a non-aqueous solvent. Each of the graphite particles has a surface portion including an amorphous region and a crystal region which includes a plurality of carbon hexagonal net planes stacked along a surface of the graphite particle. Ends of the stacked carbon hexagonal net planes form loops exposed on the surface of the graphite particle. At least a part of the loops are stacked, and the average number of the loops stacked is more than 1 and not more than 2.
摘要:
A solenoid-operated valve assembly is configured in such a way that one of multiple receiving connectors 4A and 4B of different forms is attached to a first end block 2a via the corresponding one of holders 5A and 5B having the same mounting mechanism, thereby enabling either the receiving connector 4A or 4B to be selectively attached.
摘要:
An electromagnetic pilot type selector valve which can serve as a double-solenoid type selector valve or a single-solenoid type selector valve by merely increasing or decreasing the number of solenoid mechanisms and by providing a few component parts. This selector valve includes large and small pistons having different pressure receiving areas for driving a main valve disc. When two solenoid mechanisms are mounted, the main valve disc is switched over by pilot fluid pressure alternately applied on the two pistons. When one solenoid mechanism is mounted, the main valve disc is switched over by switching pilot fluid pressure applied on the large size piston, while the main valve disc is constantly pushed in one direction by pilot fluid pressure applied on the small size piston.
摘要:
A pair of terminal insertion holes are formed to the end wall portion of an magnetic cover in an electromagnetic manipulator, a pair of coil terminals electrically conductive to an exiting coil are extended from a first flange portion of a bobbin in parallel with the axial line of the bobbin as well as extended to the outside of the end wall portion passing through the terminal insertion holes in an electrically insulated state due to the interposition of rubber bushes, a print board electrically connected to the coil terminals and an electrically insulating protection cover for covering the print board are disposed above the outside surface of the end wall portion, and power receiving terminals to which a power supply external connector is connected are disposed to the print board.
摘要:
A pair of terminal insertion holes are formed to the end wall portion of an magnetic cover in an electromagnetic manipulator, a pair of coil terminals electrically conductive to an exiting coil are extended from a first flange portion of a bobbin in parallel with the axial line of the bobbin as well as extended to the outside of the end wall portion passing through the terminal insertion holes in an electrically insulated state due to the interposition of rubber bushes, a print board electrically connected to the coil terminals and an electrically insulating protection cover for covering the print board are disposed above the outside surface of the end wall portion, and power receiving terminals to which a power supply external connector is connected are disposed to the print board.