摘要:
The invention relates to a battery module, comprising cells (10), two external terminals (23, 24), an infrastructure (102, 29) for communicating messages, a control unit (100), comprising a message processing unit, connected to the infrastructure (102, 29), for sending and receiving messages. According to the invention, at least two of the messages chosen from: - a first message regarding characterization of the cells, - a second message regarding forming of the cells, and - a third message regarding utilization of a battery pack comprising several modules connected by their usage terminals, when the pack is associated with a consumer machine with a view to supplying it with electrical energy, are provided in the processing unit, which unit is configurable in any one of the messages.
摘要:
The invention relates to a nanostructured material. Said material is a nanostructured carbon material consisting of agglomerates of small needles of Li1+aV3O8 and ßLixV2O5 (0,l≤ α ≤ 0,25 et 0,03 ≤ x ≤ 0,667 surrounded by a discontinuous coating of spherical carbon particles. It is obtained by means of a process consisting in preparing a carbon precursor gel by bringing carbon, V2O5- α an a Li precursor into contact with each other, the amounts thereof being such that the ratio of concentrations [V2O5]/[Li] ranges from 1.15 to 1.5, and the mass ratio (carbon)/ (carbon + V2O5+ Li precursor) is 10 to 15, and in subjecting the gel to heat treatment including a first stage at 8O0C - 15O0C pendant 3-12 h, and a second stage between 3000C and 35O0C, during 10 mins to 1 hour, in a nitrogen or argon atmosphere. n. Applications: positive-electrode active material.
摘要:
The invention concerns an interconnection system (100) of an energy storage assembly (200), with an electronic support for controlling (300) the health status of the energy storage assembly (200), the interconnection system (101) being characterized in that it comprises an interconnection support (101) including a conductive circuit (800) formed on electrically conductive surface, said circuit (800) forming an electrical connection between the electronic control support (300) and the pole terminals (500) of the cells to which it is connected, respectively, through connecting means and through retaining means (110, 120, 150), said retaining means (110, 120, 150) being adapted to urged into contact, on the pole terminals (500), with support means (510) so as to arrange the pole terminals (500) on the interconnection support (101) and adapted to provide a direct electrical connection of the pole terminals (500) with the conductive circuit (800). The invention is applicable in high energy storage technologies such as lithium polymer technology.
摘要:
The invention relates to a bilayer polymer electrolyte for a lithium battery. The inventive electrolyte comprises N and P layers which are each formed by a solid solution of an Li salt in a polymer material, said Li salt being the same in both layers, whereby the concentration of polymer material is at least 60 % by weight and the concentration of lithium salt is between 5 and 25 % by weight. The polymer material from layer P contains a solvating polymer and a non-solvating polymer, the weight ratio between the two polymers being such that the solvating polymer forms a continuous network. The polymer material from layer N is formed by a solvating polymer and, optionally, a non-solvating polymer, the weight ratio between the two polymers being such that the solvating polymer forms a continuous network and the non-solvating polymer does not form a continuous network.
摘要:
The invention relates to a device for the production of electric energy storage units, comprising means (A, 104, 204, 304) for feeding multiple films and a mandrel (610) which is adapted in such a way that said multiple films can be wound in the form of a multi-layered unit, characterised in that the mandrel (610) has a non-circular rotation section and in that the device comprises drive means consisting in rotating the mandrel (610) at a non-constant angular speed which is controlled in such a way that a constant linear speed can be obtained for the feeding of said films.
摘要:
The invention concerns an ionic conducting material containing an oligoether sulphate. The material comprises an ionic compound in solution in a solvating polymer. The ionic compound is a mixture of a lithium bis(trifluoromethanesulphonyl)imidide and of at least one lithium oligoether sulphate selected among lithium oligoether sulphate of formula R-[O-CH2-CH2)]n-O-SO3-Li+ (I), wherein: R is a CmH2m+1 group with 1 = m =4 and 2 = n =17, and lithium oligoether sulphate of formula Li+ O-SO2-O-CH2 [CH2-O-CH2]p-CH2-O-SO2-O- Li+ (II), wherein 3 =p =45; the overall ratio Ot/Lit is not more than 40, Ot representing the total number of atoms O supplied by the solvating polymer and by the oligoether; the LiTFSI content is such that the Ot/LiTFSI ratio is not less than 20.
摘要:
The invention relates to a device for the production of energy storage units, comprising feed means (100, 200, 300) for single layers or multilayered films (90, 40, 92), means (530) for driving said means such that they can be unwound, means (C) for combining said films to form a complex (96), and a mandrel (610) which is adapted in such a way that the films can be wound in the form of a multilayered winding (10, 20, 30, 40, 50, 60), characterized in that the inventive device comprises first cutting means (270) for cutting one or more of the layer(s) (40) forming the complex in a manner which is transversal in respect to the direction in which they are unwound, and second cutting means (550) for cutting the remaining layers (10, 20, 30, 50, 60) in a manner which is transversal in relation to the direction in which they are unwound, such that the layers cut (40) by the first means (270) are set back in relation to the other layers (10, 20, 30, 50, 60) at one end of the winding of the complex (96). The invention also relates to a method for the production of energy storage units and to said units thus obtained.
摘要:
The invention relates to a device which is used to produce energy storage assemblies. The inventive device comprises means (532, 534, 610) of driving a multi-layer film, means (610) of winding the multi-layer film and cutting means (550) which are used to divide the multi-layer film at the end of winding. The invention is characterised in that it also comprises heating means (562) for heating the multi-layer film and means (580) for pressing the end of the winding end of the film against the surface of the wound assembly, such that the winding end sticks to the surface. The invention also relates to the associated method of producing energy storage assemblies.
摘要:
The invention relates to a device for production of electrical energy storage devices comprising a rolling spool (610) for rolling superimposed films in the form of a multi-layer composite, characterized in comprising means (670, 680, 800) for controlled adjustment of the straight section of the rolling spool (610).