公开(公告)号：US20160121396A1

公开(公告)日：2016-05-05

申请号：US14785237

申请日：2014-04-17

Applicant: ROCKWOOD LITHIUM GMBH

Inventor： Ulrich WIETELMANN ,  Christoph HARTNIG ,  Ute EMMEL ,  Vera NICKEL

IPC: B22F1/00 ,  H01M4/36 ,  H01M4/62 ,  H01M4/38

CPC classification number: B22F1/0088 ,  B22F1/0003 ,  B22F1/02 ,  B22F2201/016 ,  B22F2201/02 ,  B22F2301/054 ,  B22F2302/45 ,  B22F2999/00 ,  C01B21/061 ,  C01B21/0926 ,  C01D15/00 ,  C01P2006/80 ,  H01M4/134 ,  H01M4/366 ,  H01M4/382 ,  H01M4/628 ,  H01M10/052 ,  H01M2004/027 ,  B22F9/18 ,  B22F2201/013

Abstract: The invention relates to particulate lithium metal formations having a substantially spherical geometry and a core composed of metallic lithium, which are enclosed with an outer passivating but ionically conductive layer containing nitrogen. The invention further relates to a method for producing lithium metal formations by reacting lithium metal with one or more passivating agent(s) containing nitrogen, selected from the groups N2, NxHy with x=1 or 2 and y=3 or 4, or a compound containing only the elements C, H, and N, and optionally Li, at temperatures in the range between 60 and 300° C., preferably between 100 and 280° C., and particularly preferably above the melting temperature of lithium of 180.5° C., in an inert organic solvent under dispersion conditions or in an atmosphere that contains a gaseous coating agent containing nitrogen.

Abstract translation: 本发明涉及具有基本球形几何形状的颗粒状锂金属结构和由金属锂构成的芯，其由含有氮的外部钝化但离子导电层包围。 本发明还涉及通过使锂金属与一种或多种含氮的钝化剂反应来制备锂金属层的方法，所述钝化剂选自N2，NxHy，x = 1或2，y = 3或4，或 仅含有元素C，H和N以及任选的Li的化合物在温度范围为60至300℃之间，优选为100至280℃的温度下，特别优选高于约180.5℃的锂的熔融温度 在惰性有机溶剂中，在分散条件下或在含有含氮气体包衣剂的气氛中。

公开(公告)号：US20160351888A1

公开(公告)日：2016-12-01

申请号：US15116568

申请日：2015-02-13

Applicant: ROCKWOOD LITHIUM GMBH

Inventor： Ulrich WIETELMANN ,  Vera NICKEL ,  Stefan SCHERER ,  Ute EMMEL ,  Thorsten BUHRMESTER ,  Steffen HABER ,  Gerd KRÄMER

IPC: H01M4/133 ,  H01M4/04 ,  C01B31/04 ,  H01M4/36 ,  H01M4/587 ,  H01M4/62 ,  H01M10/0525 ,  H01M4/1393

Abstract: Described is a coated, (partly) lithiated graphite powder characterized in that it has been produced in a non-electrochemical process from metallic lithium and graphite in powder form and has been stabilized outside an electrochemical cell by application of a coating layer; and a galvanic cell comprising a cathode, a lithium-conductive electrolyte-separator system and an anode comprising a coated, (partly) lithiated graphite powder, where the (partial) lithiation and the coating of the graphite powder are performed non-electrochemically outside the galvanic cell (ex situ).

Abstract translation: 描述了一种涂覆的（部分）锂化石墨粉末，其特征在于其以非电化学方法由粉末形式的金属锂和石墨生产，并通过施加涂层在电化学电池外部稳定化; 以及包括阴极，锂导电电解质分离器系统和包含涂覆的（部分）锂化石墨粉末的阳极的电池，其中（部分）锂化和石墨粉末的涂层在非电化学方面进行 原电池（原位）。

公开(公告)号：US20170247305A1

公开(公告)日：2017-08-31

申请号：US15503186

申请日：2015-08-12

Applicant: ROCKWOOD LITHIUM GMBH

Inventor： Ulrich WIETELMANN ,  Ute EMMEL ,  Armin STOLL ,  Florian KIEFER

IPC: C07C31/30 ,  C07C29/70

CPC classification number: C07C31/30 ,  C07C29/70 ,  C07F3/02 ,  C08F10/00 ,  C08F4/6546 ,  C08F4/6555

Abstract: One or more concentrated low-viscosity solutions of alkaline earth alkoxide compounds M(OCH2R6)2-a-b(OR7)a[O(CHR8)OR9]b in mixture with a metal alkyl compound M(R10R11) in an aprotic solvent and related methods are disclosed herein.