A manufacturing method of a battery includes: an injection step of injecting the electrolytic solution into the intermediate member via an unsealed portion; and a permeation step of causing the electrolytic solution to permeate the intermediate member. The electrode body includes a power generation element and a first collector terminal and a second collector terminal. The power generation element has a first side and a second side corresponding to long sides in the rectangular shape of the power generation element, and a third side and a fourth side corresponding to short sides in the rectangular shape of the power generation element. The first collector terminal and the second collector terminal are placed on the first side and on the second side, respectively. In the permeation step, the intermediate member is placed such that the first side is placed on a vertically lower side as a first arrangement state.

Embodiments of the present disclosure generally relate to carbon materials for battery electrodes and methods for preparing such carbon materials. More specifically, embodiments relate to coated nano-ordered carbon particles and methods for coating a carbon film onto carbonaceous particles to produce the coated nano-ordered carbon particles which can be used as an anode material within a rechargeable battery, such as a sodium-ion battery, other types of batteries. In one or more embodiments, a method for producing coated nano-ordered carbon particles is provided and includes exposing a carbon-containing material to an expanding agent to produce expanded carbonaceous particles during an expanding process, heating the expanded carbonaceous particles during an annealing process, and depositing a carbon film on the nano-ordered carbon particles to produce coated nano-ordered carbon particles during a carbon coating process.

Embodiments of the present disclosure generally relate to carbon materials for battery electrodes and methods for preparing such carbon materials. More specifically, embodiments relate to coated nano-ordered carbon particles and methods for coating a carbon film onto carbonaceous particles to produce the coated nano-ordered carbon particles which can be used as an anode material within a rechargeable battery, such as a sodium-ion battery, other types of batteries. In one or more embodiments, a method for producing coated nano-ordered carbon particles is provided and includes exposing a carbon-containing material to an expanding agent to produce expanded carbonaceous particles during an expanding process, heating the expanded carbonaceous particles during an annealing process, and depositing a carbon film on the nano-ordered carbon particles to produce coated nano-ordered carbon particles during a carbon coating process.

A silicon-polymer composite anode having two or more different molecular weight (MW) versions of the same polymer, method of making the anode and electrochemical energy storage device containing the anode are disclosed.

A silicon-polymer composite anode having two or more different molecular weight (MW) versions of the same polymer, method of making the anode and electrochemical energy storage device containing the anode are disclosed.

A battery including power generation units each including a positive electrode layer, a separator layer, and a negative electrode layer. The area of either one of the positive electrode layer and the negative electrode layer is larger than the area of the other one of the positive electrode layer and the negative electrode layer. The power generation units each has a non-facing region. In the non-facing region, a first penetration portion is placed. The power generation units provided as the pair are stacked along the thickness direction via a first current collector including a second penetration portion corresponding to the first penetration portions. In the power generation units provided as the pair, two separator layers facing each other are fixed by a first fixing portion positioned in the first penetration portion and the second penetration portion.

A method of manufacturing a battery is disclosed. The method includes the steps of (A) suction-attaching the first separator to a winding core, (B) winding the first separator on the winding core, and (C) removing the wound electrode assembly from the winding core. The winding core includes a first group of holes and a second group of holes each formed in its outer circumferential surface. In step (A), suction is applied to the first separator through at least one of the first group of holes and the second group of holes, to suction-attach the first separator to the winding core. The first group of holes and the second group of holes are configured to be controllable so as to cause suction and gas discharge independently from each other.

A method of manufacturing a battery is disclosed. The method includes the steps of (A) suction-attaching the first separator to a winding core, (B) winding the first separator on the winding core, and (C) removing the wound electrode assembly from the winding core. The winding core includes a first group of holes and a second group of holes each formed in its outer circumferential surface. In step (A), suction is applied to the first separator through at least one of the first group of holes and the second group of holes, to suction-attach the first separator to the winding core. The first group of holes and the second group of holes are configured to be controllable so as to cause suction and gas discharge independently from each other.

An electrode binder for a lithium secondary battery, and an electrode and a lithium secondary battery, including the electrode binder. The electrode binder includes: a cellulose-based graft copolymer grafted with a compound having an ion-hopping site; and a polyacrylate-based polymer having an anionic group via an exchange with a cation. By including the electrode binder in at least one of the positive electrode and the negative electrode, it is possible to provide a lithium secondary battery capable of enhancing fast charging/discharging behavior efficiency of the electrode by reducing electrode resistance generated inside the electrode during charging/discharging.

An electrode binder for a lithium secondary battery, and an electrode and a lithium secondary battery, including the electrode binder. The electrode binder includes: a cellulose-based graft copolymer grafted with a compound having an ion-hopping site; and a polyacrylate-based polymer having an anionic group via an exchange with a cation. By including the electrode binder in at least one of the positive electrode and the negative electrode, it is possible to provide a lithium secondary battery capable of enhancing fast charging/discharging behavior efficiency of the electrode by reducing electrode resistance generated inside the electrode during charging/discharging.