Non-aqueous electrolyte battery, battery pack and vehicle
A non-aqueous electrolyte and battery pack technology, applied in the direction of battery/battery traction, battery electrodes, battery circuit devices, etc.
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no. 1 Embodiment approach
[0028] In the first embodiment, a nonaqueous electrolyte battery including a positive electrode, a negative electrode, and a nonaqueous electrolyte is provided.
[0029] More specifically, the non-aqueous electrolyte battery involved in this embodiment includes: a positive electrode, which includes a positive electrode active material, and the positive electrode active material contains the composition formula LiMn 1-x-y Fe x A y PO 4 (wherein, A is at least one selected from Mg, Ca, Al, Ti, Zn and Zr, 0≤x≤0.3, 0≤y≤0.1) represents a compound, the surface of the positive electrode is analyzed according to X-ray photoelectron spectroscopy (X-ray Photoelectron Spectroscopy, XPS) P-F bond peak intensity (I P-F ) relative to the peak intensity of the P-O bond (I P-O ) ratio (I P-F / I P-O ) is 0.4 or more and 0.8 or less; a negative electrode comprising a negative electrode active material containing a titanium composite oxide; and a nonaqueous electrolyte.
[0030] [positive...
no. 2 Embodiment approach
[0104] In the second embodiment, there can be provided a nonaqueous electrolyte battery including the positive electrode, the negative electrode, and the nonaqueous electrolyte in the above-mentioned first embodiment. In addition, the non-aqueous electrolyte battery according to this embodiment includes a separator and an exterior material.
[0105] More specifically, the non-aqueous electrolyte battery related to this embodiment includes: an outer packaging material, a positive electrode accommodated in the outer packaging material, a negative electrode spaced apart from the positive electrode in the outer packaging material and accommodated through a separator, and a negative electrode filled in the outer packaging material. non-aqueous electrolyte within the material.
[0106] As an example of the non-aqueous electrolyte battery according to the present embodiment, for figure 1 and figure 2 The illustrated thin nonaqueous electrolyte battery (nonaqueous electrolyte batte...
no. 3 Embodiment approach
[0128] Next, the battery pack according to the third embodiment will be described in detail.
[0129] The battery pack according to this embodiment includes at least one non-aqueous electrolyte battery (that is, a unit cell) according to the second embodiment described above as a secondary battery. When the battery pack includes a plurality of cells, the cells are arranged electrically connected in series, parallel, or a combination of series and parallel.
[0130]The battery pack according to the third embodiment may further include a protection circuit. The protection circuit controls the charge and discharge of the non-aqueous electrolyte battery. Alternatively, a circuit included in a device that uses a battery pack as a power source (for example, electronic equipment, an automobile, etc.) can also be used as a protection circuit for the battery pack.
[0131] In addition, the battery pack according to the third embodiment may further include external terminals for energ...
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Abstract
Description
Claims
Application Information
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