A holding device for battery cells forming a high-voltage module that can be used for electrically driven motor vehicles includes an insulation plate provided with a pattern of recesses for each of the battery cells, the pattern of recesses includes positioning supports for the battery cell and flow grooves for an electrically insulating adhesive mass to be introduced.

A battery pack includes a tray and a plate. The tray has an accommodating space. The accommodating space has a top opening. The plate is disposed at the top opening of the accommodating space. The plate includes an inner surface facing the accommodating space and an outer surface opposite to the inner surface. A plurality of cooling pipes sequentially arranged are disposed on the outer surface of the plate. A heating member is disposed between two adjacent cooling pipes.

Disclosed is a battery module having an appropriate coupling force between internal components, reduced production cost and improved manufacture efficiency. The battery module includes a plurality of battery cells; at least two module cases respectively having an inner space accommodating the plurality of battery cells therein and having coupling portions protruding toward each other, the at least two module cases being configured such that the coupling portion of one module case makes male-and-female coupling with the coupling portion of another module case; and a first adhesive interposed between the coupling portion of the one module case and the coupling portion of the other module case that make male-and-female coupling with each other.

Disclosed is a battery module having an appropriate coupling force between internal components, reduced production cost and improved manufacture efficiency. The battery module includes a plurality of battery cells; at least two module cases respectively having an inner space accommodating the plurality of battery cells therein and having coupling portions protruding toward each other, the at least two module cases being configured such that the coupling portion of one module case makes male-and-female coupling with the coupling portion of another module case; and a first adhesive interposed between the coupling portion of the one module case and the coupling portion of the other module case that make male-and-female coupling with each other.

A high-voltage battery module includes a module housing, a cell stack which includes a plurality of cells having respective cell terminals, and an end plate which is disposed on at least one end face of the module housing and in which the at least one busbar is integrated. At least one longitudinal side of the module housing is connected to a cooling plate. The end plate is made of an electrically insulating material. The at least one busbar includes at least one electrical contacting surface toward an outer side of the end plate and at least one thermal contacting surface toward at least one edge of the end plate. The at least one thermal contacting surface of the at least one busbar is thermally connected to the at least one longitudinal side of the module housing connected to the cooling plate.

A power storage module includes: a plurality of stacked power storage cells; and a plurality of seamless loop-shaped metal members. Each of the plurality of seamless loop-shaped metal members is fitted on the plurality of power storage cells in a stacked state so as to surround and hold the plurality of power storage cells in a stacking direction.

An electrical energy store for a motor vehicle includes storage cells, a retaining element which is supported on the storage cells and by way of which the storage cells are fixed relative to one another, and a current collecting element common to the storage cells and held on the retaining element, to which current collecting element a terminal of each storage cell is electrically connected. The terminal of each storage cell is electrically connected to the current collecting element via a connection element, which is pre-mounted on the retaining element at a mounting point independently of the current collecting element and independently of the storage cells.

Disclosed is a cell, including a housing, an electrode core pack, and a sampling assembly. The housing includes a cover plate arranged at an end of the cell. The electrode core pack is arranged in the housing. The sampling assembly includes a ceramic sealing member, a connection sheet, and a sampling member. The ceramic sealing member is fixed on the cover plate by the connection sheet. The sampling member is fixed on the ceramic sealing member. A first end of the sampling member is connected to the electrode core pack. A second end of the sampling member is provided to be electrically connected to a battery controller.

Disclosed is a cell, including a housing, an electrode core pack, and a sampling assembly. The housing includes a cover plate arranged at an end of the cell. The electrode core pack is arranged in the housing. The sampling assembly includes a ceramic sealing member, a connection sheet, and a sampling member. The ceramic sealing member is fixed on the cover plate by the connection sheet. The sampling member is fixed on the ceramic sealing member. A first end of the sampling member is connected to the electrode core pack. A second end of the sampling member is provided to be electrically connected to a battery controller.

Provided are a lithium-ion battery and a preparation method therefor. The preparation method comprises the steps of connecting a plurality of cells in series and/or in parallel and then sealing to obtain a module, with the cells being jelly-rolls or stacking-rolls. According to the preparation method, the process is simple, and a battery housing shell and a module housing are combined into a whole, thereby greatly reducing the cost. Moreover, in the design of battery, the battery is internally provided with a heating sheet of graphene, etc., so as to overcome the low-temperature bottleneck of the lithium-ion battery. The standardized battery directly achieves integrated manufacturing from jelly-rolls or stacking-rolls into a module, has the characteristics of a low cost, a high energy density, a wide temperature range, high safety and a long service life, and omits the post-manufacturing procedure for the module so as to reduce the production cost.