摘要:
The disclosure aims to provide a polytetrafluoroethylene powder for an electrode binder which is a sustainable product and can reduce or prevent gas generation inside a battery cell and deterioration of battery characteristics, an electrode binder, an electrode mixture, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene powder for use as an electrode binder, the polytetrafluoroethylene powder being substantially free from water and a fluorine-containing compound having a molecular weight of 1000 or less.
摘要:
The present invention aims to provide a modified polytetrafluoroethylene fine powder capable of providing a stretched body having high strength, a small pore size, and excellent homogeneity. The modified polytetrafluoroethylene fine powder of the present invention has non-melt-processability, has a standard specific gravity of 2.155 or lower, includes 0.015 mol% or more of a polymer unit derived from perfluoro(methyl vinyl ether) in all the monomer units, is obtained by emulsion polymerizing tetrafluoroethylene and at least the perfluoro(methyl vinyl ether) in the presence of a fluorosurfactant having a LogPOW value of 3.4 or lower, and has an extrusion pressure of 20.0 MPa or lower.
摘要:
Provided is a tetrafluoroethylene-based polymer composition for use in an electrochemical device binder, the tetrafluoroethylene-based polymer composition being homogenously mixable with powder components in electrochemical devices and being capable of providing a mixture sheet having excellent strength and excellent flexibility. Also provided are an electrochemical device binder, an electrode mixture, an electrode, and a secondary battery each containing the tetrafluoroethylene-based polymer composition. The present disclosure relates to a tetrafluoroethylene-based polymer composition for use in an electrochemical device binder, the tetrafluoroethylene-based polymer composition having an extrusion pressure at a reduction ratio of 1000 of 75 MPa or lower and a shoulder or an endothermic peak in a region of 340°C or higher in a differential scanning calorimetry.
摘要:
The disclosure provides a tetrafluoroethylene-based polymer for use in a binder for electrochemical devices which is homogenously mixable with powder components in electrochemical devices and is capable of providing a mixture sheet having excellent strength and excellent flexibility, and also provides a binder for electrochemical devices, an electrode mixture, an electrode, and a secondary battery which are produced using the tetrafluoroethylene-based polymer. The tetrafluoroethylene-based polymer for use in a binder for electrochemical devices has an extrusion pressure at a reduction ratio of 2500 of 100 MPa or lower and is substantially free from water.
摘要:
Provided is a tetrafluoroethylene-based polymer composition for use in an electrochemical device binder, the tetrafluoroethylene-based polymer composition being homogenously mixable with powder components in electrochemical devices and being capable of providing a mixture sheet having excellent strength and excellent flexibility. Also provided are an electrochemical device binder, an electrode mixture, an electrode, and a secondary battery each containing the tetrafluoroethylene-based polymer composition. The present invention relates to a tetrafluoroethylene-based polymer composition for use in an electrochemical device binder, the tetrafluoroethylene-based polymer composition having endothermic peaks in a region (A) of 330°C or higher and lower than 340°C and in a region (B) of 340°C or higher and 350°C or lower in differential scanning calorimetry.
摘要:
The disclosure aims to provide a polytetrafluoroethylene powder for an electrode binder with excellent handleability, an electrode binder and an electrode mixture containing the electrode binder, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene powder for use as an electrode binder, the polytetrafluoroethylene powder having an apparent density of 0.40 g/mL or higher and a powder particle size of 400 µm or greater.
摘要:
The disclosure aims to provide a polytetrafluoroethylene fine powder containing less water and less impurities. Provided is a polytetrafluoroethylene fine powder substantially free from water and a fluorine-containing compound having a molecular weight of 1000 or less.
摘要:
The disclosure aims to provide a polytetrafluoroethylene powder for an electrode binder which can not only reduce or prevent gas generation inside a battery cell and deterioration of battery characteristics but also improve the electrode strength, an electrode binder, an electrode mixture, an electrode, and a secondary battery. Provided is a polytetrafluoroethylene powder for use as an electrode binder, the polytetrafluoroethylene having a standard specific gravity of 2.200 or less and being substantially free from water.