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A novel spinel Co 2 VO 4 is studied as the Li-ion battery anode material and it is sandwiched with a 3D ultralight porous current collector (PCC) and amorphous carbon. Co 2 VO 4 demonstrates the high capacity and excellent cyclability because of the mixed lithium storage mechanisms. The 3D composite structure requires no binders and replaces the conventional current collector (Cu foil) with a 3D ultralight porous metal scaffold, yielding the high electrode-based capacity. Such a novel composite anode also enables the close adhesion of Co 2 VO 4 to the PCC scaffold. The resulting monolithic electrode has the rapid electron pathway and stable mechanical properties, which lead to the excellent rate capabilities and cycling properties. At a current density of 1 A g -1 , the PCC and carbon sandwiched Co 2 VO 4 anode is able to deliver a stable reversible capacity of about 706.8 mAh g -1 after 1000 cycles. Generally, this study not only develops a new Co 2 VO 4 anode with high capacity and good cyclability, but also demonstrates an alternative approach to improve the electrochemical properties of high capacity anode materials by using ultralight porous metallic current collector instead of heavy copper foil., (© 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.)

Objective: To provide anatomy evidence of the simple injury of the deep branch of the ulnar nerve for clinical diagnosis and treatments., Methods: Fifteen fresh samples of voluntary intact amputated forearms with no deformity were observed anatomically, which were mutilated from the distal end of forearm. The midpoint of the forth palm fingerweb was defined as dot A, the midpoint of the hook of the hamate bone as dot B, the ulnar margin of the flexor digitorum superficialis of the little finger as OD, and the superficial branch of the ulnar nerve and the forth common finger digital nerve as OE, dot O was the vertex of the triangle, dot C was intersection point of a vertical line passing dot B toward OE; dot F was the intersection point of CB's extension line and OD. OCF formed a triangle. OCF and the deep branch of the ulnar nerve were observed. From May 2000 to June 2007, 3 cases were treated which were all simple injury of the deep branch of the ulnar nerve by glass, diagnosed through anatomical observations. The wounds were all located in the hypothenar muscles, and passed through the distal end of the hamate bone. Muscle power controlled by the ulnar nerve got lower. The double ends was sewed up in 2 cases directly intra operation, and the superficial branch of radial nerve grafted freely in the other 1 case., Results: The distance between dot B and dot O was (19.20 +/- 1.30) mm. The length of BC was (7.80 +/- 1.35) mm. The morphia of OCF was various, and the route of profundus nervi ulnaris was various in OCF. OCF contains opponens canales mainly. The muscle branch of the hypothenar muscles all send out in front of the opponens canales. The wounds of these 3 cases were all located at the distal end of the hook of the hamate bone, intrinsic muscles controlled by the ulnar nerve except hypothenar muscles were restricted without sensory disorder or any other injuries. Three cases were followed up for 2 months to 4 years. Postoperation, the symptoms disappeared, holding power got well, patients' fingers were nimble. According to the trial standard of the function of the upper limb peripheral nerve established by Chinese Medical Surgery of the Hand Association, the synthetical evaluations were excellent., Conclusion: Simple injuries of the deep branch of the ulnar nerve are all located in OCF; it is not easy to be diagnosed at the early time because of the little wounds, the function of the hypothenar muscles in existence and the normal sense.