LG Energy Solution

In one aspect, a computer-implemented method may include receiving, at edge processing devices, measurements from sensors associated with a battery pack. The computer-implemented method may include processing, at the edge processing devices, the measurements using a data profiler to generate data profiles including e voltage values, transforming, at the edge processing devices, the voltage values to generate transformed voltage values, determining, at the edge processing devices using the voltage values and the transformed voltage values, features, and determining, using trained edge computer-implemented models, a lithium plating occurrence prediction of the battery pack. The computer-implemented method may include modifying, using the lithium plating occurrence prediction, operation of the battery pack.

Disclosed is an apparatus, a battery manufacturing system, a battery manufacturing method and a battery product. The apparatus comprises a receptacle configured to receive a battery material and a gas withdrawal system configured to withdraw a gas from the battery material.

Disclosed herein is an isotope battery (1, 1a, 1b, 1c, 1d) and its fabrication method. The isotope battery (1, 1a, 1b, 1c, 1d) comprises a first conductivity type semiconductor layer (110a), a radiation source (130) provided on a first side surface of the first conductivity type semiconductor layer (110a) and having at least partially a droplet shape, and a second conductivity type semiconductor layer (120a) facing the first side surface of the first conductivity type semiconductor layer (110a) with the radiation source (130) in-between. The isotope battery (1, 1a, 1b, 1c, 1d) of the present disclosure and its fabrication method may be mass-produced by a simple process without wasting expensive materials.

A battery control apparatus and a battery control method are disclosed. The battery control apparatus according to an embodiment of the present disclosure includes a measuring unit for measuring a voltage of a battery and outputting a voltage measurement value representing the measured voltage, a memory for storing a multi-stage charging protocol data including a first current rate, a second current rate used in another constant current charging procedure following a constant current charging procedure using the first current rate, and a first criterion SOC associated with the first current rate, and a processor for identifying a SOC of the battery based on the voltage measurement value. The processor performs a temporary discharging procedure, when the SOC of the battery reaches the first criterion SOC while the constant current charging procedure using the first current rate is in progress, determines an adjusted second current rate different from the second current rate, based on discharging information of the temporary discharging procedure, and performs a constant current charging procedure using the adjusted second current rate, after the temporary discharging procedure is finished.

The present disclosure relates to a battery cell and a manufacturing method thereof. The battery cell according to one embodiment of the present disclosure includes an electrode assembly including a cathode, an anode and a separator; and a battery case including a sealing portion that houses the electrode assembly and seals an outer periphery of the electrode assembly, wherein the sealing portion includes a first area, and a second area excluding the first area, and wherein the first area is an area where the crystallinity of the battery case is higher than that of the second area.

The present invention relates to a method of preparing a positive electrode which includes forming a solid electrolyte by mixing a lithium salt and a polymer for a solid electrolyte in a dry atmosphere, forming a dry mixture by stirring after adding a conductive agent and a positive electrode active material to the solid electrolyte in a dry atmosphere, and pressing after coating a current collector with the dry mixture.

According to some embodiments, a battery management device includes: an interface configured to obtain an open- circuit voltage (OCV) value of each of battery cells of a battery; and a controller configured to calculate an OCV difference value representing a change amount of the OCV value of each battery cell during a reference period, to set a classification reference value based on a distribution of the OCV difference values of the battery cells, and to classify states of the battery cells based on the classification reference value.

The present invention relates to a method for manufacturing a pre-lithiated negative electrode capable of suppressing formation of by-products during a pre-lithiation process, the method including the steps of preparing a negative electrode including a negative electrode active material layer having a moisture content of 800 ppm or more and provided on at least one surface of a negative electrode current collector layer; and bringing a transfer stack including a lithium metal layer and a base layer into contact with one surface of the negative electrode active material layer, with the lithium metal layer facing the one surface, and also relates to a lithium secondary battery including a pre-lithiated negative electrode manufactured therefrom.

A battery cell of the present invention includes a wound electrode stack, wherein the electrode stack includes a plurality of positive electrodes and a plurality of negative electrodes, and for at least two of the electrodes, the winding center of the electrode with a lower active material loading amount is located inward of the winding center of the electrode with a higher active material loading amount.

A positive electrode active material includes a lithium nickel-based oxide having the content of nickel (Ni) ranging from about 50 mol% to 70 mol% among total transition metals, and a coating layer formed on a surface of the lithium nickel-based oxide and including cobalt (Co) and lithium (Li). The coating layer has a form including both dot-shaped and film-shaped phases, and the weight ratio of lithium (Li) to cobalt (Co) in the positive electrode active material ranges from about 5 to 20.