DE102010013002A1 - Battery with a cell stack - Google Patents
Battery with a cell stack Download PDFInfo
- Publication number
- DE102010013002A1 DE102010013002A1 DE102010013002A DE102010013002A DE102010013002A1 DE 102010013002 A1 DE102010013002 A1 DE 102010013002A1 DE 102010013002 A DE102010013002 A DE 102010013002A DE 102010013002 A DE102010013002 A DE 102010013002A DE 102010013002 A1 DE102010013002 A1 DE 102010013002A1
- Authority
- DE
- Germany
- Prior art keywords
- cell stack
- battery
- tie rods
- cells
- clamping devices
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/289—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by spacing elements or positioning means within frames, racks or packs
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/204—Racks, modules or packs for multiple batteries or multiple cells
- H01M50/207—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape
- H01M50/209—Racks, modules or packs for multiple batteries or multiple cells characterised by their shape adapted for prismatic or rectangular cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/262—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks
- H01M50/264—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders with fastening means, e.g. locks for cells or batteries, e.g. straps, tie rods or peripheral frames
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/271—Lids or covers for the racks or secondary casings
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
Eine Batterie (1) ist aus einem Zellenstapel (3) aus einer Vielzahl von im Wesentlichen flach ausgebildeten Batterieeinzelzellen (4) und einem Batteriegehäuse (2) ausgebildet. Die Batterieeinzelzellen (4) sind über Spanneinrichtungen (7, 7') zu dem Zellenstapel (3) verspannt. Die Spanneinrichtungen (7, 7') fixieren den Zellenstapel (3) dabei zumindest gegenüber einem Teil des Batteriegehäuses (2). Die Spanneinrichtungen (7, 7') sind elektrisch gegenüber dem Zellenstapel (3) isoliert.A battery (1) is formed from a cell stack (3) made up of a plurality of essentially flat individual battery cells (4) and a battery housing (2). The individual battery cells (4) are clamped to form the cell stack (3) via clamping devices (7, 7 '). The clamping devices (7, 7 ') fix the cell stack (3) at least with respect to part of the battery housing (2). The tensioning devices (7, 7 ') are electrically isolated from the cell stack (3).
Description
Die Erfindung betrifft eine Batterie mit einem Zellenstapel nach der im Oberbegriff von Anspruch 1 näher definierten Art.The invention relates to a battery with a cell stack according to the closer defined in the preamble of
Aus dem allgemeinen Stand der Technik sind Batterien, und hier insbesondere Hochleistungs- beziehungsweise Hochvoltbatterien bekannt, welche aus einem Zellenstapel mit einer Vielzahl von Batterieeinzelzellen ausgebildet sind. Diese Batterieeinzelzellen sind dabei im Wesentlichen flach beziehungsweise quaderförmig ausgebildet und übereinander gestapelt. Die Batterieeinzelzellen können sowohl in einem bipolaren Aufbau realisiert werden, beispielsweise als bipolare Rahmenflachzelle, oder auch in einem Aufbau mit einem geschlossenen Gehäuse oder als in Folie eingeschweißte Flachzellen, sogenannte Coffebag- oder Pouch-Zellen. All diesen Batterien ist es gemeinsam, dass die Batterieeinzelzellen typischerweise zu einem Zellenstapel aufgestapelt und dann über geeignete Spanneinrichtungen, beispielweise Spannbänder oder Zuganker, verspannt werden. Dieser Zellenstapel wird dann als eigenständiges Modul in ein Batteriegehäuse eingebracht und in dem Batteriegehäuse entsprechend gesichert und befestigt, beispielsweise durch Rahmenauflagen, Spannbänder oder Ähnliches.Batteries, and in particular high-performance or high-voltage batteries, which are formed from a cell stack having a plurality of individual battery cells, are known from the general state of the art. These individual battery cells are formed substantially flat or parallelepiped and stacked one above the other. The battery individual cells can be realized both in a bipolar structure, for example as a bipolar Rahmenflachzelle, or in a structure with a closed housing or as shrink-wrapped flat-film cells, so-called Coffebag or Pouch cells. It is common to all these batteries that the individual battery cells are typically stacked in a cell stack and then clamped by means of suitable tensioning devices, for example straps or tie rods. This cell stack is then introduced as a standalone module in a battery case and secured in the battery case and secured accordingly, for example by frame supports, straps or the like.
Aus der
Es ist nun die Aufgabe der hier vorliegenden Erfindung eine Batterie gemäß dem Oberbegriff von Anspruch 1 dahingehend weiterzubilden, dass ein sehr einfacher Aufbau der Batterie realisiert werden kann.It is now the object of the present invention to develop a battery according to the preamble of
Dies wird durch die Merkmale im kennzeichnenden Teil von Anspruch 1 gelöst.This is solved by the features in the characterizing part of
Dadurch, dass die Spanneinrichtungen den Zellenstapel gegenüber zumindest einem Teil des Gehäuses fixieren und dabei selbst gegenüber dem Zellenstapel elektrisch isoliert ausgeführt sind, entsteht ein sehr einfacher Aufbau. Die Verspannung der Batterieeinzelzellen zu dem Zellenstapel kann ebenso wie ihre Halterung in dem Batteriegehäuse einfach und effizient über die Spanneinrichtungen realisiert werden. Damit wird die Anzahl der benötigten Bauelemente entsprechend reduziert, was zu einer Reduzierung von Bauvolumen und Gewicht der Batterie führt. Durch die geringere Anzahl an Teilen werden außerdem Kosten bei der Herstellung und der Montage eingespart.Due to the fact that the clamping devices fix the cell stack with respect to at least one part of the housing and thereby are themselves electrically insulated from the cell stack, a very simple construction results. The straining of the battery individual cells to the cell stack as well as their mounting in the battery case can be realized simply and efficiently via the clamping devices. Thus, the number of required components is reduced accordingly, resulting in a reduction of volume and weight of the battery. The reduced number of parts also saves costs in production and assembly.
Weitere vorteilhafte Ausgestaltungen des erfindungsgemäßen Aufbaus ergeben sich außerdem aus den restlichen Unteransprüchen und werden anhand des nachfolgend dargestellten Ausführungsbeispiels deutlich.Further advantageous embodiments of the structure according to the invention also emerge from the remaining dependent claims and will become apparent from the embodiment illustrated below.
Dabei zeigen:Showing:
In der Darstellung der
Der Aufbau in der Darstellung der
Die Besonderheit bei dem hier dargestellten Aufbau des Zellenstapels
Der Zellenstapel
Dieser Aufbau ist dabei vergleichsweise aufwändig und kompliziert und benötigt eine vergleichsweise große Anzahl an Bauteilen.This structure is comparatively complicated and complicated and requires a comparatively large number of components.
In der Darstellung der Batterie
Der Zellenstapel
In der Darstellung der
In der Darstellung der
Um diese erfindungsgemäße Idee des Verspannens und Befestigens des Zellenstapels
In der Darstellung der
Um eine derartige Bewegung auch durch die Zuganker
In der Darstellung der
Dieser Aufbau ist in einem geschlossenen Zustand der Batterie
Eine solche Batterie kann einfach und kostengünstig hergestellt werden. Sie ist besonders gut geeignet, um hohe Energiemengen zu speichern und wieder abzugeben. Ihr bevorzugter Einsatz kann dabei bei der Verwendung zur Speicherung von Traktionsenergie in Hybrid-, Mildhybrid- oder Elektrofahrzeugen liegen.Such a battery can be easily and inexpensively manufactured. It is particularly well suited to store and release high amounts of energy. Their preferred use may be in use for traction energy storage in hybrid, mild hybrid or electric vehicles.
ZITATE ENTHALTEN IN DER BESCHREIBUNG QUOTES INCLUDE IN THE DESCRIPTION
Diese Liste der vom Anmelder aufgeführten Dokumente wurde automatisiert erzeugt und ist ausschließlich zur besseren Information des Lesers aufgenommen. Die Liste ist nicht Bestandteil der deutschen Patent- bzw. Gebrauchsmusteranmeldung. Das DPMA übernimmt keinerlei Haftung für etwaige Fehler oder Auslassungen.This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.
Zitierte PatentliteraturCited patent literature
- EP 1710859 A1 [0003] EP 1710859 A1 [0003]
- DE 102009035461 [0016] DE 102009035461 [0016]
Claims (8)
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010013002A DE102010013002A1 (en) | 2010-03-26 | 2010-03-26 | Battery with a cell stack |
PCT/EP2010/007459 WO2011116805A1 (en) | 2010-03-26 | 2010-12-08 | Battery having a cell stack |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102010013002A DE102010013002A1 (en) | 2010-03-26 | 2010-03-26 | Battery with a cell stack |
Publications (1)
Publication Number | Publication Date |
---|---|
DE102010013002A1 true DE102010013002A1 (en) | 2011-09-29 |
Family
ID=43919905
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE102010013002A Withdrawn DE102010013002A1 (en) | 2010-03-26 | 2010-03-26 | Battery with a cell stack |
Country Status (2)
Country | Link |
---|---|
DE (1) | DE102010013002A1 (en) |
WO (1) | WO2011116805A1 (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012012006A1 (en) | 2012-06-16 | 2013-12-19 | Daimler Ag | Method for bracing individual cells of battery pack with each other, involves placing resilient winding element in circumferential direction around stacked individual components in accordance with predetermined bias force |
DE102012018048A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. lithium ion traction battery used in vehicle e.g. electric car, has stacked and electrically contacted single battery cells that are fixed in housing by casting material |
DE102012018091A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery for electrically driven vehicle e.g. electric vehicle, has air chamber film that is arranged between battery cells in stack |
DE102012018045A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. traction battery, for e.g. electric vehicle, has battery single cells clamped between cell frames and stacked to stack, where frames comprise hooks over which one of cell frames is latched with another cell frame in stack |
DE102012018047A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. high-power battery, for use as traction battery in e.g. hybrid vehicle, has cell frame comprising cell frame parts that are locked with one another, where frame parts enclose edge area of foil at outer circumference of cells |
DE102012018036A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. lithium-ion-battery, for use as traction battery in e.g. hybrid vehicle, has stack of individual cells arranged in stack housing, and foamed plastic material i.e. polyurethane foam, provided between cell frames and housing |
DE102012018043A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. high power lithium-ion battery, for use as traction battery of e.g. electric car, has battery cells comprising cell frames that carry electrode stack along portion at outer perimeter of frames and are cast or foamed on film |
DE102012018037A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. lithium-ion traction battery for e.g. electric car, has slats that are arranged in slat support of cell frame and extended transversely to stacking direction, and films whose edge region is clamped between frame portions |
DE102013204180A1 (en) | 2013-03-12 | 2014-09-18 | Robert Bosch Gmbh | A housing for receiving a cell pack, battery, method for producing a battery and method for producing a fiber-reinforced plastic component for housing a battery |
DE102013004532A1 (en) * | 2013-03-15 | 2014-09-18 | Audi Ag | A method for producing an energy storage device comprising a plurality of mutually braced, juxtaposed, each having a housing energy storage |
DE102014016238A1 (en) | 2014-11-04 | 2016-05-04 | Daimler Ag | Cell block for an electric battery and electric battery |
DE102015104741A1 (en) * | 2015-03-27 | 2016-09-29 | H-Tech Ag | Battery block, and method of making a battery pack |
DE102016203818A1 (en) * | 2016-03-09 | 2017-09-14 | Robert Bosch Gmbh | battery Pack |
US9991573B2 (en) | 2013-06-07 | 2018-06-05 | Robert Bosch Gmbh | Housing device for at least one energy store cell and method for producing an housing device for at least one energy store cell |
DE102013204339B4 (en) | 2012-03-16 | 2021-11-11 | Honda Motor Co., Ltd. | Vehicle body with battery unit |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102014207950A1 (en) | 2014-04-28 | 2015-10-29 | Bayerische Motoren Werke Aktiengesellschaft | Battery and method of manufacturing a battery |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1710859A1 (en) | 2005-04-07 | 2006-10-11 | Nissan Motor Co., Ltd. | Battery |
DE102009035461A1 (en) | 2009-07-31 | 2011-02-03 | Daimler Ag | Battery i.e. heavy-duty battery, for motor vehicle, has electrical insulation layer and additional pole plate arranged on side of positive pole plate, where additional plate is electrically connected with negative pole plate via tension rod |
Family Cites Families (6)
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GB482363A (en) * | 1936-06-24 | 1938-03-24 | Frank Maccallum | Improvements relating to dry batteries |
US2632784A (en) * | 1950-03-29 | 1953-03-24 | Union Carbide & Carbon Corp | Venting primary battery |
US8557429B2 (en) * | 2005-02-18 | 2013-10-15 | Toyota Jidosha Kabushiki Kaisha | Battery pack having battery modules held by holding spacers |
KR100919390B1 (en) * | 2006-02-13 | 2009-09-29 | 주식회사 엘지화학 | Medium and Large Size Battery Module of Vertical Stacking Structure |
JP4882852B2 (en) * | 2007-04-26 | 2012-02-22 | トヨタ自動車株式会社 | Power supply |
DE102007063186B4 (en) * | 2007-12-20 | 2013-04-18 | Daimler Ag | Energy storage device and its use |
-
2010
- 2010-03-26 DE DE102010013002A patent/DE102010013002A1/en not_active Withdrawn
- 2010-12-08 WO PCT/EP2010/007459 patent/WO2011116805A1/en active Application Filing
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP1710859A1 (en) | 2005-04-07 | 2006-10-11 | Nissan Motor Co., Ltd. | Battery |
DE102009035461A1 (en) | 2009-07-31 | 2011-02-03 | Daimler Ag | Battery i.e. heavy-duty battery, for motor vehicle, has electrical insulation layer and additional pole plate arranged on side of positive pole plate, where additional plate is electrically connected with negative pole plate via tension rod |
Cited By (22)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013204339B4 (en) | 2012-03-16 | 2021-11-11 | Honda Motor Co., Ltd. | Vehicle body with battery unit |
DE102012012006A1 (en) | 2012-06-16 | 2013-12-19 | Daimler Ag | Method for bracing individual cells of battery pack with each other, involves placing resilient winding element in circumferential direction around stacked individual components in accordance with predetermined bias force |
DE102012018048A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. lithium ion traction battery used in vehicle e.g. electric car, has stacked and electrically contacted single battery cells that are fixed in housing by casting material |
DE102012018091A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery for electrically driven vehicle e.g. electric vehicle, has air chamber film that is arranged between battery cells in stack |
DE102012018045A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. traction battery, for e.g. electric vehicle, has battery single cells clamped between cell frames and stacked to stack, where frames comprise hooks over which one of cell frames is latched with another cell frame in stack |
DE102012018047A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. high-power battery, for use as traction battery in e.g. hybrid vehicle, has cell frame comprising cell frame parts that are locked with one another, where frame parts enclose edge area of foil at outer circumference of cells |
DE102012018036A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. lithium-ion-battery, for use as traction battery in e.g. hybrid vehicle, has stack of individual cells arranged in stack housing, and foamed plastic material i.e. polyurethane foam, provided between cell frames and housing |
DE102012018043A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. high power lithium-ion battery, for use as traction battery of e.g. electric car, has battery cells comprising cell frames that carry electrode stack along portion at outer perimeter of frames and are cast or foamed on film |
DE102012018037A1 (en) | 2012-09-13 | 2014-03-13 | Daimler Ag | Battery e.g. lithium-ion traction battery for e.g. electric car, has slats that are arranged in slat support of cell frame and extended transversely to stacking direction, and films whose edge region is clamped between frame portions |
US9947907B2 (en) | 2013-03-12 | 2018-04-17 | Robert Bosch Gmbh | Housing composed of a metal frame structure and a plastic component for accommodating a cell stack |
DE102013204180B4 (en) | 2013-03-12 | 2021-07-08 | Robert Bosch Gmbh | Housing for accommodating a cell pack, battery, method for manufacturing a battery and method for manufacturing a fiber-reinforced plastic component for housing a battery |
DE102013204180A1 (en) | 2013-03-12 | 2014-09-18 | Robert Bosch Gmbh | A housing for receiving a cell pack, battery, method for producing a battery and method for producing a fiber-reinforced plastic component for housing a battery |
DE102013004532A1 (en) * | 2013-03-15 | 2014-09-18 | Audi Ag | A method for producing an energy storage device comprising a plurality of mutually braced, juxtaposed, each having a housing energy storage |
DE102013004532B4 (en) | 2013-03-15 | 2019-02-21 | Audi Ag | A method for producing an energy storage device comprising a plurality of mutually braced, juxtaposed, each having a housing energy storage device and device for producing an energy storage device |
US9991573B2 (en) | 2013-06-07 | 2018-06-05 | Robert Bosch Gmbh | Housing device for at least one energy store cell and method for producing an housing device for at least one energy store cell |
DE102014016238A1 (en) | 2014-11-04 | 2016-05-04 | Daimler Ag | Cell block for an electric battery and electric battery |
DE102015104741A1 (en) * | 2015-03-27 | 2016-09-29 | H-Tech Ag | Battery block, and method of making a battery pack |
CN107646149A (en) * | 2015-03-27 | 2018-01-30 | 高科技股份公司 | Battery block and the method for assembled battery block |
DE102016203818A1 (en) * | 2016-03-09 | 2017-09-14 | Robert Bosch Gmbh | battery Pack |
CN107180931A (en) * | 2016-03-09 | 2017-09-19 | 罗伯特·博世有限公司 | Battery bag |
US10439181B2 (en) | 2016-03-09 | 2019-10-08 | Robert Bosch Gmbh | Battery pack |
CN107180931B (en) * | 2016-03-09 | 2021-10-29 | 罗伯特·博世有限公司 | Battery pack |
Also Published As
Publication number | Publication date |
---|---|
WO2011116805A1 (en) | 2011-09-29 |
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Legal Events
Date | Code | Title | Description |
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R120 | Application withdrawn or ip right abandoned | ||
R120 | Application withdrawn or ip right abandoned |
Effective date: 20120831 |