1. A battery pack comprising:
a battery unit that includes a bottom-closed hollow exterior container, an electrode assembly of positive and negative electrode plates that face each other and are accommodated in the exterior container, positive and negative electrode tabs that extend from said positive and negative electrode plates and are arranged in parallel to each other in said exterior container, and a sealing plate that closes the opening of said exterior container;
a circuit board that is arranged on or above an exterior surface of said battery unit, and includes external positive and negative terminals through which electric power can be supplied;
a first wiring path that connects said positive electrode tab to said external positive terminal through said sealing plate and said circuit board; and
a second wiring path that connects said negative electrode tab to said external negative terminal through said circuit board,
wherein a current loop is formed from said positive electrode plate through said positive electrode tab, said first wiring path, said external positive terminal, said external negative terminal, said second wiring path and said negative electrode tab in this order to said negative electrode plate when electric power is supplied, and
wherein as viewed in a plan view along said positive and negative electrode tabs, which are arranged in parallel to each other, in the current loop shape that is projected onto this plan view,
said first and second wiring paths intersect each other at the position where said first and second wiring paths pass said sealing plate, and wherein the current flow direction of a current loop part that is formed from the intersection position on the exterior side of the battery unit is opposite to the current flow direction of another current loop part that is formed from the intersection position on the interior side of the battery unit.
2. The battery pack according to claim 1, wherein said exterior container has a rectangular box shape,
wherein said positive and negative electrode tabs extend toward said sealing plate in said exterior container, and
wherein said circuit board extends along and is spaced away from the exterior surface of said sealing plate.
3. The battery pack according to claim 2, wherein the negative terminal passes through and is electrically insulated from the sealing plate,
wherein, in said first wiring path, said positive electrode tab is connected to an interior surface of said sealing plate, and said sealing plate is connected through a first lead to said circuit board,
wherein said negative terminal is positioned between the connection position between said sealing plate and said positive electrode tab, and the connection position between said sealing plate and said first lead,
wherein, in said second wiring path, said negative electrode tab is connected to said negative terminal on the interior side of said sealing plate, and a second lead member is provided which is arranged on the exterior side of said sealing plate and extends from said negative terminal to said circuit board.
4. The battery pack according to claim 3, wherein said first lead is positioned right above said negative electrode tab, and said second lead is positioned right above said positive electrode tab.
5. A battery pack comprising:
a battery unit that includes a bottom-closed hollow exterior container, an electrode assembly of positive and negative electrode plates that face each other and are accommodated in the exterior container, positive and negative electrode tabs that extend from said positive and negative electrode plates and are arranged in parallel to each other in said exterior container, and a sealing plate that closes the opening of said exterior container;
a circuit board that is arranged on or above an exterior surface of said battery unit, and includes external positive and negative terminals through which electric power can be supplied;
a first wiring path that connects said positive electrode tab to said external positive terminal through said sealing plate and said circuit board; and
a second wiring path that connects said negative electrode tab to said external negative terminal through said circuit board,
wherein a current loop is formed from said positive electrode plate through said positive electrode tab, said first wiring path, said external positive terminal, said external negative terminal, said second wiring path and said negative electrode tab in this order to said negative electrode plate when electric power is supplied, and
wherein the interval between exterior-side path parts of said first and second wiring paths each of which extends from said sealing plate to said circuit board is smaller than the interval between interior-side path parts of said first and second wiring paths each of which is located on the interior side of said sealing plate, and wherein current flow directions in the exterior-side path parts are opposite to each other.
6. The battery pack according to claim 5, wherein said exterior container has a rectangular box shape,
wherein said positive and negative electrode tabs extend toward said sealing plate in said exterior container, and
wherein said circuit board extends along and is spaced away from the exterior surface of said sealing plate,
wherein the negative terminal passes through and is electrically insulated from the sealing plate,
wherein a first lead member is provided which extends from said sealing plate to said circuit board in the first wiring path, wherein a second lead is provided which extends from said negative terminal to said circuit board, and
wherein said second lead member extends toward said first lead member from said negative terminal before reaching said circuit board.
7. The battery pack according to claim 5, wherein said exterior container has a rectangular box shape,
wherein said positive and negative electrode tabs extend toward said sealing plate in said exterior container,
wherein said circuit board extends along a side surface as said exterior surface of said exterior container,
wherein the negative terminal passes through and is electrically insulated from the sealing plate,
wherein a first lead member is provided which extends from said sealing plate to said circuit board through the side of said exterior container in the first wiring path, and
wherein a second lead member is provided in said second wiring path, and wherein the second lead member extends from said negative terminal to said circuit board, and faces said first lead member.
8. The battery pack according to claim 5, wherein the interval between said first and second wiring paths is not smaller than 0.15 mm.
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 braided nanofibrous structure comprising:
at least three nanofiber bundles, wherein the nanofiber bundles are braided together and each nanofiber bundle independently comprises at least two nanofibers oriented in a uniaxial direction.
2. The braided nanofibrous structure as set forth in claim 1, wherein the nanofibers are about 2 \u03bcm or less in diameter.
3. The braided nanofibrous structure as set forth in claim 1, further comprising a plurality of cells.
4. The braided nanofibrous structure as set forth in claim 1, comprising three nanofiber bundles.
5. The braided nanofibrous structure as set forth in claim 1, comprising four nanofiber bundles.
6. The braided nanofibrous structure as set forth in claim 1, comprising five nanofiber bundles.
7. The braided nanofibrous structure as set forth in claim 3, wherein the plurality of cells are selected from the group consisting of ligament fibroblasts, tenocytes, muscle fibroblasts, muscle cells, mesenchymal stem cells, embryonic stem cells, and combinations thereof.
8. The braided nanofibrous structure as set forth in claim 7, wherein the plurality of cells are selected from the group consisting of autologous cells, allogeneic cells, and xenogeneic cells,
9. The braided nanofibrous structure as set forth in claim 1, wherein the nanofibrous polymer comprises at least one of a natural protein and a synthetic material.
10. The braided nanofibrous structure as set forth in claim 9, wherein the textile based material comprises poly(glycolide) (PGA), poly(L-lactic acid) (PLA), poly(lactide-co-glycolide) (PLGA), poly(L-lactide) (PLLA), poly(D,L-lactide) (P(DLLA)), poly(ethylene glycol) (PEG), poly(\u03b5-caprolactone) (PCL), montmorillonite (MMT), poly(L-lactide-co-\u03b5-caprolactone) (P(LLA-CL)), poly(\u03b5-caprolactone-co-ethyl ethylene phosphate) (P(CL-EEP)), polybis(p-methylphenoxy)phosphazene (PNmPh), poly(3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV), poly(ester urethane) urea (PEUU), poly(p-dioxanone) (PPDO), polyurethane (PU), polyethylene terephthalate (PET), poly(ethylene-co-vinylacetate) (PEVA), poly(ethylene oxide) (PEO), poly(phosphazene), poly(ethylene-co-vinyl alcohol), and combinations thereof.
11. The braided nanofibrous structure as set forth in claim 1, wherein the nanofiber bundle is porous.
12. The braided nanofibrous structure as set forth in claim 11, wherein the nanofiber bundle comprises a porosity of from about 10% to about 95%.
13. The braided nanofibrous structure as set forth in claim 11, wherein the nanofiber bundle comprises pores having a pore size of from about 10 \u03bcm to about 800 \u03bcm.
14. A method of preparing a braided nanofibrous structure, the method comprising:
preparing a nanofiber bundle comprising at least two nanofibers, wherein each nanofiber bundle independently comprises at least two nanofibers oriented in a uniaxial direction; and
preparing a braided nanofibrous structure by braiding at least three nanofiber bundles together.
15. The method as set forth in claim 14, further comprising:
seeding the braided nanofibrous structure with a plurality of cells to form a braided nanofibrous structure having cells dispersed therein; and
culturing the braided nanofibrous structure having cells dispersed therein in a bioreactor.
16. The method as set forth in claim 14, wherein the nanofibers are about 2 \u03bcm or less in diameter.
17. The method as set forth in claim 14, further comprising coating the braided nanofibrous structure with at least one of a cell adhesion molecule or a bioactive molecule.
18. The method as set forth in claim 15, wherein the plurality of cells comprise ligament fibroblasts, tenocytes, muscle fibroblasts, muscle cells, mesenchymal stem cells, embryonic stem cells, and combinations thereof.
19. The method as set forth in claim 15, wherein the culturing the braided nanofibrous structure seeded with the plurality of cells further occurs in the presence of a growth factor.
20. The method as set forth in claim 19 wherein the growth factor is selected from at least one of growth differentiation factors, epidermal growth factors, basic fibroblast growth factors, and transforming growth factor-beta.