Abstract:
A Li-ion polymer battery and methods for its fabrication. First (34) and second (36) layers of polymer/particulate material compositions serve to separate and bind each anode (30) and cathode (32). The polymer of the first layer and its associated solvent differ from the polymer of the second layer and its associated solvent. Solubility requirements are such that the polymer of the first layer is non-soluble in the solvent of the second layer, and the polymer of the second layer is non-soluble in the solvent of the first layer. The structure for containing the electrolyte of the battery eliminates the need for a substantial case for enclosing the battery.
Abstract:
An exemplary embodiment of a synthesis method includes the following acts or steps: providing LiMn2O4 material as a precursor; leaching Mn from the LiMn2O4 material using an acid to form a synthesized solution; adding carbonaceous material to the synthesized solution; adding phosphoric acid to the synthesized solution with carbonaceous material to form MnPO4 composite material; and adding Li containing compound to the MnPO4 composite material to form LiMnPO4 composite material.
Abstract translation:合成方法的一个示例性实施方案包括以下步骤:提供LiMn 2 O 4材料作为前体; 使用酸从LiMn2O4材料中浸出Mn以形成合成的溶液; 向合成的溶液中加入碳质材料; 用碳质材料向合成的溶液中加入磷酸,形成MnPO4复合材料; 并向MnPO 4复合材料中加入含Li化合物以形成LiMnPO4复合材料。
Abstract:
In one embodiment, a battery management system comprising a first circuit comprising a first plurality of circuit elements arranged in series, the first plurality of circuit elements comprising: a direct current (DC) voltage source, and first plural switching devices, each of the first plural switching devices connected to, and operably switched by, a first detection device associated with a battery module to cause a voltage difference responsive to detection of an event corresponding to operation of the battery module.
Abstract:
In one embodiment, a method implemented by a processor, comprising receiving voltage values corresponding to a battery system, receiving charge values corresponding to charge flowing through the battery system, and determining a state of charge based on specified anchoring points of a charge integration, the anchoring points based on the received voltage and time.
Abstract:
Disclosed herein are certain embodiments of a novel chemical synthesis route for lithium ion battery applications. Accordingly, various embodiments are focused on the synthesis of a new active material using NMC (Lithium Nickel Manganese Cobalt Oxide) as the precursor for a phosphate material having a layered crystal structure. Partial phosphate generation in the layer structured material stabilizes the material while maintaining the large capacity nature of the layer structured material. Materials having a composition represented by: Lix Ni1/4 Mn1/4 Co1/4 P(1/4-y )O2,wherein 0≤x≤1, 0.001≤y≤0.25 and by: LixX(2/3+y)P(1/3-y)O2,wherein 0≤x≤1, 0.001≤y≤0.33, and X is Nickel or a combination of transition metal elements, can be prepared.
Abstract translation:本文公开了用于锂离子电池应用的新型化学合成路线的某些实施方案。 因此,各种实施方案集中在使用NMC(锂镍锰钴氧化物)作为具有层状晶体结构的磷酸盐材料的前体的新的活性材料的合成。 层状结构材料中的部分磷酸盐生成在保持层结构材料的大容量性质的同时稳定材料。 具有由Li x Ni 1/4 Mn 1/4 Co 1/4 P(1/4-y)O 2表示的组成的材料,其中0≤x≤1,0.1≤y≤0.25,并且由:LixX(2/3 + y) P(1/3-y)O 2,其中0≤x≤1,0.1≤y≤0.33,X是镍或过渡金属元素的组合。
Abstract:
A Li-ion polymer battery and methods for its fabrication. A first and second layer, of a polymer/particulate material composition, separate and bind each anode and cathode. The polymer of the first layer and its associated solvent differ from the polymer of the second layer and its associated solvent. Solubility requirements are such that the polymer of the first layer is non-soluble in the solvent of the second layer, and the polymer of the second layer is non-soluble in the solvent of the first layer. The polymers and particulate materials of the layers form a porous structure for containing the electrolyte of the battery so as to eliminate the need for a substantial case for enclosing the battery.
Abstract:
In one embodiment, a system comprising a battery set (140) comprising plural battery cells configured in a circuit; and a control system (120) configured to switch current flow in the circuit from bi-directional flow to and from the battery set to mono-directional flow to or from the battery set based on an over-charging or over-discharging condition.
Abstract:
Binding layer formed on Aluminum (Al) substrate that binds the substrate with a coated material. Additionally, an extended form of the binding layer. By making a solution containing Al-transition metal elements-P-O, the solution can be used in slurry making (the slurry contains active materials). The slurry can be coated on Al substrate followed by heat treatment to form the electrode. Alternatively, in certain embodiments, the solution containing Al-transition metal elements-P-0 can be mixed with active material powder, after heat treatment, to form powder particles bound by the binder.
Abstract:
A battery control system, comprising: a plurality of battery units comprising a battery system; and a controller coupled to the plurality of battery units, the controller configured to monitor, for each battery unit, a first voltage and a second voltage, the first voltage corresponding to an absolute value of a shut-off voltage and a second voltage corresponding to a warning voltage, the first voltage smaller than the second voltage, wherein responsive to one of the battery units reaching the second voltage, the controller is configured to provide a first alert before the any of the battery units reaches the first voltage.