1. A lithium-ion battery comprising:
a wound electrode group, the wound electrode group being formed by winding a positive electrode having a negative electrode active material layer formed on a surface thereof, a separator that retains an electrolyte, and a negative electrode having a positive electrode active material layer formed on a surface thereof, around an axial core;
an electrode pole arranged between the wound electrode group and a battery terminal, the electrode pole being configured to contribute to an electrical connection between the wound electrode group and the battery terminal;
lead pieces formed in strip form on an active-material-non-applied portion provided on a side of each of the positive electrode and the negative electrode, the lead pieces being electrically connected to the electrode pole;
a gap between the wound electrode group and the electrode pole; and
a spacer, having a hollow columnar shape, that is arranged at a portion connecting the axial core and the electrode pole, wherein the spacer connects to a protruding portion that protrudes from the electrode pole;
wherein the wound electrode group, the electrode pole, and the lead pieces are housed in a battery can,
the electrode pole is cylindrical in shape, and
a value of BA is 1.4 to 2.6, where a distance from an inner wall of the battery can to the electrode pole is A, a distance from the wound electrode group to the electrode pole is B, and the distance B is adjustable in accordance with a height of the spacer.
2. The lithium-ion battery according to claim 1, wherein the value of the BA is 1.6 to 2.0.
The claims below are in addition to those above.
All refrences to claim(s) which appear below refer to the numbering after this setence.
1. A device for aligning the cross-hairs of a reticle of a telescopic sight mounted on a mounting surface of a firearm, the device comprising:
a first card having at least one reference line arrayed across a front surface of the first card and at least one reference line arrayed across a rear surface of the first card;
a second card having at least one reference line arrayed across a front surface of the second card and at least one reference line arrayed across a rear surface of the second card;
a connecting element holding the first card and the second card together in a common plane, the connecting element having at least one flat surface parallel to the reference lines of the reference cards; and
a level mounted to an aperture in the first card and oriented in a direction parallel to the flat surface;
wherein when the device is positioned flush against the mounting surface of the firearm, the level indicates the levelness of the mounting surface, and
the reference lines indicate the position of a properly aligned reticle.
2. The device of claim 1, further comprising a first hook on the first card and a second hook on the second card, wherein when the device is positioned flush against the mounting surface of the firearm, the device may be secured to the firearm by a fastener connecting the first hook to the second hook.
3. The device of claim 1, wherein the thickness of the at least one line arrayed across the front surfaces of the cards is different than the thickness of the one or more lines arrayed across the rear surfaces of the cards.
4. The device of claim 1, wherein more than one line is arrayed across the front surface of the cards and the more than one lines are parallel to one another.
5. The device of claim 4, wherein the number of parallel lines of the front surfaces of the cards is different than the number of parallel lines of the rear surfaces of the cards.
6. The device of claim 1, furthering comprising a grid on the front surfaces of the first and second cards.
7. The device of claim 1, further comprising a second level mounted to a second aperture in either the first card or the second card, wherein the second level is oriented in a direction then the direction of the first level.
8. The device of claim 1 wherein the level is visible from both sides of the first card.
9. The device of claim 8 wherein the level comprises a spirit level.
10. The device of claim 8 wherein the fastener is a rubber band.
11. A device for aiding the cross-hair alignment of a reticle of a telescopic sight mounted on a mounting surface of a firearm which comprises:
a first card having a plurality of spaced apart parallel reference lines on a front surface of the first card and a plurality of spaced apart parallel reference lines on a rear surface of the first card; a second card having a plurality of spaced apart parallel reference lines on a front surface of the second card and a plurality of spaced apart parallel reference lines on a rear surface of the second card;
the lines on the front surfaces of the first and second cards being of a different line thickness than the lines on the back surfaces of the first and second cards,
a connecting element holding the first card and the second card together in a common vertical plane, the connecting element having at least one flat surface parallel to the reference lines of the reference cards; and
and a spirit level mounted to an aperture in the first card and oriented in a direction parallel to the flat surface and visible from both sides of the first and second cards.
12. The device of claim 11, wherein the device further comprises a mounting adapter, the mounting adapter comprising at least one prong configured to mount in a slot on the mounting surface of the firearm.
13. The device of claim 12, wherein when the device is positioned flush within the slot of the mounting surface of the firearm, the reference lines indicate the position of the properly aligned reticle.
14. The device of claim 12, wherein the mounting adapter is disposed on the connecting element.
15. The device of claim 14, wherein the mounting adapter defines a channel between two opposing surfaces of the mounting adapter, wherein a cross-section of the channel corresponds with a cross-section of the connecting element.
16. The device of claim 15, wherein the mounting adapter further comprises at least one protrusion disposed above the channel.
17. The device of claim 12, wherein the mounting adapter is disposed between the first card and the second card.
18. The device of claim 12, wherein the mounting adapter comprises two prongs.
19. The device of claim 12, wherein the mounting adapter comprises three prongs.
20. The device of claim 12, wherein the mounting adapter is reversibly detachable from the device.
21. A method of aligning the cross hairs of a reticle of a telescopic sight mounted on a firearm which comprises:
attaching to the telescopic sight a device comprising:
a first card having at least one reference line arrayed across a front surface and at least one reference line arrayed across a rear surface;
a second card having at least one reference line arrayed across a front surface and at least one reference line arrayed across a rear surface;
a connecting element holding the first card and the second card together in a common plane, the connecting element having at least one flat surface parallel to the reference lines of the reference cards; and
a level mounted to an aperture in the first card and oriented in a direction parallel to the flat surface;
positioning the device against the mounting surface of the firearm such that the connecting element is flat on a mounting surface on the gun and the level indicator indicates the gun is in a level position; and
adjusting the horizontal cross hair of the reticle to be parallel to the at least one reference line on the first and second cards.