Industrial Technology Research Institute

Mediatek Corporation

Delta Electronics, Inc.

National Taiwan University

Htc Corporation

Saft America

Dj Solar Co., Ltd.

Shih-Chieh Liao

Jin-Ming Chen

Chi-Chen Lee

Song-Wein Hong

Chia-Ming Chang

Tsung-Liang Lu

Ting-Chung Hsieh

Chun-Pin Chen

Chia-Erh Liu

Hsiu-Fen Lin

Yu-Ting Chen

Nae-Lih Wu

Hung-Chun Wu

Wen-Chin Chen

Chien-Te Hsieh

Dar-Jen Liu

Yih-Chyng Wu

Ting-Ju Yeh

Cheng-Zhang Lu

Jen-Hsiang Huang

Chia-Hao Chang

Tsung-Hsiung Wang

Sheng-Fa Yeh

Yu-Ting Yao

Chun-Hao Chang

Guo-Shing Huang

Deng-Tswen Shieh

Chuan-Sheng Zhuang

Chin-Wei Hsu

Wen-Bing Chu

Yu-Lun Chang

Shih-Hsin Chien

Zhong-Ren Wu

Han-Chang Shih

Sian-Jheng Wong

Frank Cao

Xilin Chen

Ching-Yueh Kao

Yu-Tien Yeh

Jia-Shi Lin

Lung-Jay Cheng

Jung-Jung Kuo

Mao-Huang Liu

Yue-Hao Huang

Kamen Nechev

Carine Margez Steinway

Tuan-Che Chen

Ching-Yu Chen

Hao-Tzu Huang

Chi-Yang Huang

Yen-Po Chang

Chi-Ju Cheng

Chao-Ho Tsai

Ya-Chi Chang

Shu-Ghun Yu

Wei-Yu Chen

Hsiu-Wen Huang

Wen-Jiunn Liu

Hung-Hsiao Lin

Lang Deng Yu

Thiraphat Vilaithong

Tien-Yi Huang

Geoffrey Wen Tai Shuy

Chi-Hsun Tsai

Lun-Yu Ku

A multi-layer cathode coating for positive electrode of a rechargeable electrochemical cell (or secondary cell) (such as a lithium-ion secondary battery) and a secondary battery including a cathode having a multi-layer cathode coating. Multi-layer cathode coatings containing blends of one or more cathode active materials in certain weight ratios thereof.

Cathode having multi-layer cathode coating

A fast charging lithium-ion battery includes a positive electrode plate, a negative electrode plate, a separator, and an electrolyte. The positive electrode plate includes a positive current collector and a positive active material layers. The negative electrode plate includes a negative current collector and negative active material layers. The negative active material layers include titanium niobium oxide, lithium titanate, or a combination thereof. The separator is disposed between the positive electrode plate and the negative electrode plate. The electrolyte contacts the positive electrode plate and the negative electrode plate. The negative active material layers have an effective area corresponding to the positive electrode plate. The negative active material layers have a thickness on one surface of the negative current collector. A ratio of the effective area to the thickness is greater than 2×10mm.

Fast charging lithium-ion battery

A communications apparatus includes a transceiver and a processor. The processor is configured to perform operations comprising: performing a Non Access Stratum (NAS) security mode command procedure to derive a set of NAS key(s); transmitting a NAS security mode complete message to a network device for informing that the NAS security mode command procedure is complete; receiving an RRCReconfiguration message indicating derivation of a set of Access Stratum (AS) keys from the network device when an acknowledge message associated with the NAS security mode complete message has not been received; and performing a NAS procedure to communicate with the network device by using the set of NAS key(s).

Security key synchronization method and associated communications apparatus

A cathode of a lithium ion battery is provided. The cathode of a lithium ion battery includes a collector material. A first electrode layer including a lithium manganese iron phosphate (LMFP) material is disposed on a surface of the collector material. A second electrode layer including an active material is disposed on the first electrode layer. The active material includes lithium nickel manganese cobalt oxide (NMC), lithium nickel cobalt aluminum oxide (NCA), lithium cobalt oxide (LCO), Li-rich cathode material, or a combination thereof.

Cathode of lithium ion battery

A solid state electrolyte having a garnet type crystal structure is provided. The chemical composition of the solid state electrolyte includes lithium, lanthanum, zirconium, oxygen, and sulfur. The content of sulfur in the solid state electrolyte is between 5 mol % and 35 mol % based on the content of oxygen in the solid state electrolyte. A solid state battery including a positive electrode layer, a negative electrode layer, and a solid state electrolyte layer is also provided. The solid state electrolyte layer is disposed between the positive electrode layer and the negative electrode layer. The solid state electrolyte layer includes the solid state electrolyte.

Solid state electrolyte and solid state battery

Various solutions for maintaining a radio resource control (RRC) connection with respect to user equipment and network apparatus in mobile communications are described. An apparatus may establish an RRC connection with a network node. The apparatus may transmit a layer 2 packet to maintain the RRC connection after a period of time without data transmission. The apparatus may transmit uplink data via the RRC connection without re-establishing the RRC connection.

Method and apparatus for maintaining radio resource control connection in mobile communications

An electrolyte is provided. The electrolyte includes a polymer, a lithium salt, and an organic solvent. The polymer is a polymerization product of a reactive additive and an initiator, wherein the reactive additive includes at least an amide group and at least an epoxy group or ethyl group. A composition for electrolyte and a lithium battery employing the electrolyte are also provided.

Electrolyte, composition for electrolyte and lithium battery employing the same

A mobile communication device for avoiding location exposure in a User Equipment (UE) information procedure includes a wireless transceiver configured to perform wireless transmission and reception to and from a service network. The device further includes a controller, configured to determine whether a Radio Resource Control (RRC) security has been activated between the mobile communication device and the service network, and in response to the RRC security not having been activated, does not send a measurement report to the service network via the wireless transceiver after receiving measurement configuration message, wherein the controller is further configured to send the measurement report after the RRC security has been activated.

Apparatuses and methods for avoiding location exposure

A communications apparatus includes a radio transceiver and a processor. The radio transceiver is configured for transmitting or receiving wireless radio frequency signals to or from a peer device. The processor determines whether re-synchronization in a communication mode with the peer device is required according to a determination rule. When the re-synchronization is required, the processor transmits a message to the peer device via the radio transceiver to trigger a re-synchronization procedure. The processor determines whether the re-synchronization is required in a connected mode.

Methods for re-synchronizing a communication mode with a peer device and communications apparatus utilizing the same

A high-voltage positive electrode material for a lithium battery and a preparation method thereof are provided. The high-voltage positive electrode material for a lithium battery includes a material represented by the following formula (1):LiNiMnMgCrO&#x2003;&#x2003;(1)wherein x&#x3e;0, y&#x3e;0, and 0&#x3c;3x+2y&#x2264;0.1.

High-voltage positive electrode material for lithium battery and preparation method thereof

Aspects of the disclosure provide a method for setting up a call for a user equipment. The method includes receiving, by the user equipment, a measurement configuration message that specifies a set of measurement events corresponding to poor signal quality between the user equipment and a packet-switched network, and sending, by the user equipment, a measurement report when one of the set of measurement events occurs while performing a first call setup process for setting up the call using the packet-switched network. The method also includes terminating the first call setup process after sending the measurement report that indicates poor signal quality between the user equipment and the packet-switched network, and sending, by the user equipment, a service request to begin a second call setup process for setting up the call for the user equipment using a circuit-switched network after terminating the first call setup process.

Method and system for call setup

A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller operates in a connected mode with a connection to the service network, and determines whether there is no active data traffic in a first period of time when operating in the connected mode. In response to there being no active data traffic in the first period of time, the controller performs a local release of the connection or sends a measurement report to trigger the service network to release the connection.

Apparatuses and methods for user equipment (UE)-initiated connection and resource release

A mobile communication device for avoiding location exposure in a User Equipment (UE) information procedure includes a wireless transceiver, configured to perform wireless transmission and reception to and from a service network. The device also includes a controller, configured to determine whether a Radio Resource Control (RRC) security has been activated between the mobile communication device and the service network, and in response to the RRC security not having been activated and location information of the mobile communication device being present, send a first measurement report without the location information of the mobile communication device to the service network via the wireless transceiver or does not send a second measurement report comprising the location information of the mobile communication device; to the service network via the wireless transceiver after receiving measurement configuration message.

A mobile communication device including a wireless transceiver and a controller is provided. The wireless transceiver performs wireless transmission and reception to and from a service network. The controller determines whether a Radio Resource Control (RRC) security has been activated between the mobile communication device and the service network when receiving measurement configuration from the service network via the wireless transceiver. In response to the RRC security not having been activated and location information of the mobile communication device being present, the controller sends a first measurement report not including the location information of the mobile communication device to the service network via the wireless transceiver, or the controller does not send a second measurement report including the location information of the mobile communication device to the service network via the wireless transceiver.

Growing community of inventors

Taoyuan, Taiwan

Shih-Chieh Liao