Battery short circuit patent
US11881569B2
A battery case short-circuit processing method and system are provided. The battery case short-circuit processing method includes: when a short circuit between a case of a battery and a first electrode of the battery is detected, connecting the case and a second electrode of the battery by shorting, wherein if the first electrode is a positive electrode, …
Battery pack with short circuit protection
This invention relates to a battery pack that can prevent battery short circuits when disconnected from electrical equipment. Battery packs have an electrode …
Detection of an internal short circuit in a battery
Research Organization: Univ. of Michigan, Ann Arbor, MI (United States) Sponsoring Organization: USDOE DOE Contract Number: AR0000269; W56HZV-14-2-0001
Battery internal short-circuit detecting device and method, battery ...
US-2010201321-A1 chemical patent summary. A battery internal short-circuit detecting device has: a battery temperature detection unit for detecting a battery temperature Tr; an ambient temperature detection unit for detecting an ambient temperature Te; an average heating value detection unit for detecting an average value Pav of battery heating values …
CN104466079A
The invention provides a lithium battery capable of preventing short circuit. The lithium battery comprises a positive plate and a positive terminal, wherein the positive plate is connected with the positive terminal through an aluminum band, and the aluminum band is provided with a hole structure. By utilizing the positive connection way, the safety of the …
CN109473743B
The invention relates to a method for simulating a short circuit in a battery by fixed-point lithium separation, belonging to the technical field of lithium ion battery safety. The simulation method of the present invention introduces local defects in the components such as the positive electrode active material layer, the negative electrode active material …
Short circuit detection for batteries
A method and apparatus for short circuit detection for batteries. Some embodiments of a method include receiving a battery pack in a system, where the battery pack is rechargeable and includes multiple battery cell blocks, each cell block including one or more battery cells. The voltages of the plurality of cell blocks are monitored. Upon shutting …
Detection of an internal short circuit in a battery
The open circuit voltage of a battery which is connected in a closed circuit is determined without breaking the circuit or causing voltage upsets therein. The closed …
Battery short-circuit protection circuit
The utility model can realize the short-circuit protection of the battery and the load under different working states by setting the load monitor to monitor the voltage and current …
The advances and opportunities of developing solid-state battery ...
Originally, innovators focused on improving SSB''s technology performance, such as perfecting conductivity, improving discharge capacity and battery efficiency, etc., between 2002 and 2007. Then, patent holders started to be concerned about how to improve safety, prolong the life cycle, and prevent short circuits between 2008 and 2014.
US20100188050A1
Patent Document 3 describes that when the temperature of the battery rises due to an internal short circuit, the rise of the temperature is stored, thereby enabling a detection of an internal short circuit or the like that occurs when the battery is not operated. Patent Document 3 further describes that when a significant temperature increase with respect …
Internal short circuit detection in Li-ion batteries using ...
Yokotani, K. Battery system and method for detecting internal short circuit in battery system (2014). US Patent 8,643,332. Leidich, S., Schumann, S. & Henrici, F. Method for detecting anomalies in ...
CN101765941A
The internal short-circuit detecting device comprises a voltage detecting unit for detecting the terminal voltage of the battery, a terminal voltage acquiring unit for acquiring a terminal voltage (V1), as predetermined by the voltage detecting unit, at the starting point of a first period (DeltaW1) and a terminal voltage (V2) at the ending ...
Short-circuit protection for an electric vehicle battery
Battery packs interconnected in this way have to be reliably protected from short circuits within the battery pack, as otherwise these short circuits can lead to a destruction of the battery pack. For this reason, the detection device is arranged in the vehicle battery in order to detect wetness in the vehicle battery. ... German Patent Office ...
US Patent Application for BATTERY INTERNAL SHORT-CIRCUIT …
An object of the present invention is to provide a battery internal short-circuit detecting device, a method, a battery pack and an electronic device system …
CN2788207Y
The utility model discloses a battery short circuit testing device which comprises an anode clamp and a cathode clamp which are used for clamping the anode and the cathode of a battery, wherein the anode clamp or the cathode clamp is connected with one end of a control switch through a sector conductor. The battery short circuit testing device also …
Short Circuiting a Battery: What Happens Next
A short circuit fault inside a battery can release a current thousands of times larger in milliseconds. This can irreparably damage all devices in the external circuit. Avoid short circuiting a battery in several ways. Buy decent batteries and devices, and use them wisely. Never allow battery terminals to connect directly, or damage or modify ...
NREL/NASA Internal Short-Circuit Instigator in Lithium Ion Cells: …
N2 - NREL has developed a device to test one of the most challenging failure mechanisms of lithium-ion (Li-ion) batteries -- a battery internal short circuit. Many members of the technical community believe that this type of failure is caused by a latent flaw that results in a short circuit between electrodes during use.
Battery short-circuit protection circuit
The battery short-circuit protection circuit carries out hardware test on battery short-circuit and controls the switch tube; when the charging circuit at both ends of...
Internal short circuit detection in Li-ion batteries using ...
A novel methodology with high accuracy is proposed for online detection of mechanical abused induced ISCs in the smart phone batteries. The proposed …
Battery short-circuit protection circuit
The utility model discloses a battery short-circuit protection circuit relates to battery BMS management circuit technical field. The utility model discloses a series battery group, fusing fuse, EMC wave filter and load monitor, wherein the series battery group is parallelly connected with the load monitor through fusing fuse, charge-discharge switch and …
WO2009013898A1
The internal short-circuit detecting device comprises a voltage detecting unit for detecting the terminal voltage of the battery, a terminal voltage acquiring unit for acquiring a terminal voltage (V1), as predetermined by the voltage detecting unit, at the starting point of a first period (ΔW1) and a terminal voltage (V2) at the ending point ...
What Happens If a Battery is Short-Circuited? (What is Short Circuit ...
A battery short circuit is a condition where the electrical current in the battery bypasses the normal flow of electrons through the circuit. This can happen if the positive and negative terminals of the battery are accidentally touched together, or if a wire that is connected to the battery becomes frayed or broken.
Li-Ion Battery Short-Circuit Protection by Voltage-Driven …
An internal short circuit, as well as an external short circuit, lead to an instantaneous increase in temperature within a few seconds and a possible ignition of the battery [11,12]. Thus, the development of new chemical protection methods aimed at suppressing short circuits is a paramount step toward creating completely safe batteries.
Internal short circuit detection in Li-ion batteries using …
The RF classifier has been trained using the healthy and ISC battery (with external short circuit resistance) data for different end of discharge SOC levels. The parameters derived from the grid search are used for the final training. ... Yokotani, K. Battery system and method for detecting internal short circuit in battery system …
US20100188054A1
Patent Document 3 discloses that an internal short circuit or the like can be detected at the time of non-operation, by storing the increase of the temperature caused by the internal short circuit or the like. Patent Document 3 also discloses that when a significant temperature increase is detected in relation to a significant voltage decrease, it is …
Battery short-circuit protection circuit
The invention relates to a battery short-circuit protection circuit, which comprises a voltage acquisition circuit, a short-circuit judgment circuit, a main loop on-off control...
Internal short circuit detection method for battery pack based …
Kazunobu Y. Battery system and method for detecting detecting internal short circuit in battery system. US Patent 8643332B2, 2014-2-4. Asakura J, Nakashima T, Nakatsuji T, et al. Battery internal shortcircuit detection apparatus and method, and battery pack. US Patent 8334699B2, 2012-12-18
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